# Rayoung Pipeline Technology Co., Ltd.--Chinese Supplier > Steel Pipe, Fitting, and Flange Manufacturer and Supplier ## Posts - [The Ultimate Guide to Buttweld Pipe Fittings and Their Applications](https://hb-steel.com/the-ultimate-guide-to-buttweld-pipe-fittings-and-their-applications/): Whether you’re a distributor, wholesaler, stockist, engineer, or construction professional, un […] - [The Role and Importance of Buttweld Pipe Fittings in Oil and Gas Pipeline Systems](https://hb-steel.com/the-role-and-importance-of-buttweld-pipe-fittings-in-oil-and-gas-pipeline-systems/): Buttweld pipe fittings are widely used in the oil and gas pipeline industry, offering unparalleled strength, durability, and leak-proof connections. - [Top 10 Manufacturers of Seamless Pipe Tees in Asia](https://hb-steel.com/top-10-manufacturers-of-seamless-pipe-tees-in-asia/): when it comes to the manufacturing of seamless pipe tees, Asia is home to some of the world’s top pr […] - [massive pipe elbows](https://hb-steel.com/massive-pipe-elbows/): Watch as our team expertly loads massive pipe elbows destined for Dubai! These high-quality fittings […] - [Buttweld pipe fitting B2B Supplier-Global Deliveries](https://hb-steel.com/title-global-deliveries-in-action-js-fittings/): Global Deliveries, high-quality butt weld pipe fittings and flanges products to industrial projects in different countries. - [Our Automated Production for Seamless Elbows and Forged Flanges](https://hb-steel.com/check-out-our-seamless-steel-pipe-elbows-and-forged-flanges-getting-the-royal-treatment-in-our-cutting-edge-automat/): Unlike traditional manual spraying, this automated system ensures consistent Dry Film Thickness (DFT) and complete 360° coverage, even for complex geometries such as large-diameter elbows and flange bolt holes. - [**Exciting News from the Iran Oil Show! We are Await Your Arrival!**](https://hb-steel.com/exciting-news-from-the-iran-oil-show-we-are-await-your-arrival/): **Meet Industry Leaders**: Network with Top Exhibitors in the Oil Sector! Join us at the Iran Oil Sh […] - [Meet Rayoung at the 28th Iran Oil Show 2024: Your Partner for Piping Solutions](https://hb-steel.com/exciting-announcement-join-us-at-the-iran-oil-exhibition-2024-stand-no-38056/): Visit Rayoung at the 28th Iran International Oil, Gas, Refining & Petrochemical Exhibition (May 8-11, 2024). Explore our ASME B16.9 fittings and A105 flanges at Stand No. 38056. - [Exciting Journey Begins: Shipping Our Premium Pipe Fittings and Flanges Worldwide!](https://hb-steel.com/exciting-journey-begins-shipping-our-premium-pipe-fittings-and-flanges-worldwide/): Witness the hustle and bustle as we load our top-of-the-line pipe fittings and durable flanges into  […] - [Witness Precision Unveiled: JS FITTINGS Seamless Pipe Fittings Inspection!](https://hb-steel.com/witness-precision-unveiled-js-fittings-seamless-pipe-fittings-inspection/):  Join us behind the scenes as we delve into the&nb […] - [High-Performance Butt Weld Pipe Elbows](https://hb-steel.com/unveiling-excellence-rayoung-steel-butt-weld-pipe-elbows/): Leading supplier of ASME B16.9 butt weld pipe elbows. Available in carbon steel (ASTM A234 WPB), stainless steel, and alloy. Sizes 1/2" to 72", Sch 10-XXS. Get a fast quote for seamless & welded elbows. - [ 3LPE Steel Pipes: Advantages and Application](https://hb-steel.com/understanding-3lpe-steel-pipes-enhancing-corrosion-protection-and-durability/): 3LPE Steel Pipes can defense mechanism against corrosion, mechanical damage, and chemical exposure. Are widely used in Oil and Gas Industry,Infrastructure Projects and Water Transmission. - [New Video Alert!](https://hb-steel.com/new-video-alert/): Witness Excellence in Action!   Step into our world and see the heartbeat of precision engineering!  […] - [Resumption of Work at JS FITTINGS Factory Post-Spring Festival Holiday](https://hb-steel.com/resumption-of-work-at-js-fittings-factory-post-spring-festival-holiday/): Dear Valued Customers and Partners, As the holiday season of […] - [Rayoung at Tube 2024 Düsseldorf: Showcasing Premium Industrial Flanges and Pipe Fittings](https://hb-steel.com/invitation-to-visit-our-stand-at-tube-2024-international-tube-and-pipe-trade-fair-2/): Check out our exhibition recap featuring high-pressure weld neck flanges, pipe elbows, and custom industrial fittings from a leading China manufacturer. - [Invitation to Visit Our Stand at Tube 2024 - International Tube and Pipe Trade Fair](https://hb-steel.com/invitation-to-visit-our-stand-at-tube-2024-international-tube-and-pipe-trade-fair/): Dear customers,We are excited to announce that Hebei Jinshen […] - [Unveiling Chinese Customs and Traditions for Chinese New Year in the Year of the Dragon](https://hb-steel.com/unveiling-chinese-customs-and-traditions-for-chinese-new-year-in-the-year-of-the-dragon/): As the most significant and widely celebrated holiday in China, Chinese New Year, also known as Spri […] - [Kevin Qin's Birthday Celebration | Hebei Jinsheng Pipe Fitting Manufacturing Co.](https://hb-steel.com/kevin-qins-birthday-celebration-hebei-jinsheng-pipe-fitting-manufacturing-co/): Join us in celebrating the birthday of our esteemed col […] - [JS FITTINGS family](https://hb-steel.com/js-fittings-family/):  Check out our incredible video capturing the heartwarming&n […] - [Company News: Celebrating Our Team’s Resilience and Success in 2023](https://hb-steel.com/company-news/): 2023 was a year of resilience and triumph at Rayoung. Discover how our team surpassed performance targets and how our leadership celebrated the hard work of every employee. - [Join Us at the SAIPEC Exhibition 2024 – Booth Q09!](https://hb-steel.com/join-us-at-the-saipec-exhibition-2024-booth-q09/): We are thrilled to announce that we will be participati […] - [ASTM A105 Forged Carbon Steel: A Comprehensive Guide for High-Pressure Piping Components](https://hb-steel.com/understanding-the-material-of-astm-a105/): High-quality ASTM A105 carbon steel forgings for ambient and higher-temperature service in pressure systems. We provide A105N (Normalized) flanges and fittings with full MTC 3.1. Reliable manufacturing and rapid delivery for global stockists. Get a technical quote from RAYOUNG. - [The Comprehensive Guide to Forged Flange Production](https://hb-steel.com/the-comprehensive-guide-to-forged-flange-production/): The production of a forged flange is a meticulous process that involves several stages. It starts wi […] - [Decoding the Material Difference: SS304 vs SS316](https://hb-steel.com/decoding-the-material-difference-ss304-vs-ss316/): Stainless steel, known for its corrosion resistance, strength, and durability, is a widely used mate […] - [Title: Ensuring Quality: Testing for Seamless Butt Weld Pipe Fittings](https://hb-steel.com/title-ensuring-quality-testing-for-seamless-butt-weld-pipe-fittings/): Introduction: Seamless butt weld pipe fittings play a crucial role in various industries, serving as […] - [Welded Steel Pipe Fittings vs. Seamless Steel Pipe Fittings: Which Should You Choose?](https://hb-steel.com/welded-steel-pipe-fittings-vs-seamless-steel-pipe-fittings-which-should-you-choose/): When it comes to selecting the right pipe fittings for your project, it’s essential to conside […] - [Top 10 Steel Pipe Fitting Companies in China](https://hb-steel.com/top-10-steel-pipe-fitting-companies-in-china/): China has emerged as the largest supplier of steel materials globally, with its dominance in the ste […] - [Ten Advantages of Carbon Steel Pipe Fittings for Oil and Gas Pipelines](https://hb-steel.com/ten-advantages-of-carbon-steel-pipe-fittings-for-oil-and-gas-pipelines/): Carbon steel pipe fittings play a crucial role in the oil and gas industry, providing connectivity a […] - [The Ins and Outs of Different Performance of Butt Weld Pipe Fittings](https://hb-steel.com/the-ins-and-outs-of-different-performance-of-butt-weld-pipe-fittings/): Butt weld fittings are essential when it comes to designing a pipeline system for industrial, commer […] - [A Comprehensive Guide to Butt Weld Pipe Fittings](https://hb-steel.com/a-comprehensive-guide-to-butt-weld-pipe-fittings/): Master everything about butt weld pipe fittings! Explore ASME B16.9 standards, material grades (Carbon & Stainless Steel), and the 5 key types of fittings from a professional factory perspective. - [AN OVERVIEW of PIPE BENDS](https://hb-steel.com/an-overview-of-pipe-bends/): Learn the differences between 3D/5D bends and elbows, induction bending processes, and material selection (Carbon & Stainless Steel). Get factory-direct pricing from Rayoung. - [Top 10 Seamless Steel Pipes Suppliers in China](https://hb-steel.com/unveiling-the-top-suppliers-of-seamless-steel-pipes-a-comprehensive-guide/): Are you in need of trustworthy and highly efficient suppliers of seamless steel pipes? Look no furth […] - [Top 10 Pipe Flange Companies in India](https://hb-steel.com/top-10-pipe-flange-companies-in-india/): India, with its rapidly growing industrial sector, is home to numerous manufacturers and suppliers o […] - [What is ASME B16.9 Pipe Fittings](https://hb-steel.com/what-is-asme-b16-9-pipe-fittings/): ASME B16.9 Pipe Fittings are a crucial component in the piping and plumbing industry. Designed under […] - [Top 10 Manufacturers and Suppliers of GOST Buttweld Pipe Fittings](https://hb-steel.com/top-10-manufacturers-and-suppliers-of-gost-buttweld-pipe-fittings/): It is no secret that sourcing and supplying GOST standard pipe fittings can be a difficult process, […] - [Exploring Butt Weld Steel Pipe Bends: A Comprehensive Guide](https://hb-steel.com/exploring-butt-weld-steel-pipe-bends-a-comprehensive-guide/): Butt weld steel pipe bends are essential components in various industries, such as oil and gas, petr […] - [A Comprehensive Guide to Test and Inspection of Butt-Weld Pipe Fittings](https://hb-steel.com/a-comprehensive-guide-to-test-and-inspection-of-butt-weld-pipe-fittings/): Butt-weld pipe fittings are a crucial component in various industries, including oil and gas, petroc […] - [Decoding International Standards and Application Markets of Steel Flanges](https://hb-steel.com/decoding-international-standards-and-application-markets-of-steel-flanges%ef%bf%bc/): Decoding International Standards and Application Markets of Steel Flanges Steel flanges are a crucia […] - [Top Suppliers of EN1092 Pipe Flanges](https://hb-steel.com/top-suppliers-of-en1092-pipe-flanges/): When it comes to finding top suppliers of EN1092 pipe flanges, there are a lot of options out there […] - [Discover the Top 10 Manufacturers of Butt Weld Pipe Fittings in China.](https://hb-steel.com/discover-the-top-10-manufacturers-of-butt-weld-pipe-fittings-in-china/): China is known for its exceptional production of butt-weld pipe fittings. This has led to the manufa […] - [Check Out the Top Benefits of RAYOUNG Steel Flanges](https://hb-steel.com/check-out-the-top-benefits-of-rayoung-steel-flanges/): Steel flanges are essential for virtually any piping system, providing connections that are secure a […] - [The difference between ERW steel pipe and spiral steel pipe](https://hb-steel.com/the-difference-between-erw-steel-pipe-and-spiral-steel-pipe/): Manufacturer and Supplier of ERW steel pipe and spiral steel pipe–RAYOUNG PIPELINE Steel pipes […] - [ASME / ANSI B16.5 Carbon Steel Flanges](https://hb-steel.com/asme-ansi-b16-5-carbon-steel-plate-flanges/): We offer ASTM A105 forged and A36 plate options. Class 150-2500 available with MTC 3.1. - [A Comprehensive Guide to Test and Inspection of Butt-Weld Pipe Fittings](https://hb-steel.com/test-on-pipe-fittings-and-flanges/): For oil, naterual gas, petrolem, chemical and other special industry projects, testing material is n […] - [Differences Between Seamless Steel Pipe and Welded Steel Pipe](https://hb-steel.com/differences-between-seamless-steel-pipe-and-welded-steel-pipe/): Seamless steel pipe is manufactured by the round steel billet, through hot rolling, cold rolling, or […] - [Carbon Steel Flanges: Types and Functions](https://hb-steel.com/carbon-steel-flanges-types-and-functions/): Carbon steel flanges are the backbone of high-pressure piping systems in the oil, gas, and petrochem […] - [What is ERW Steel Pipe?](https://hb-steel.com/what-is-erw-steel-pipe/): ERW pipe is widely used in a variety of industries, such as engineering, fencing, line pipes, scaffolding, and so on. Some of the most common uses for ERW pipes are in agriculture and irrigation, particularly in sewerage systems, water mains, industrial water lines, deep tube wells, plant piping, and so on. - [Carbon Steel Pipe](https://hb-steel.com/carbon-steel-pipe/): Rayoung provides high-grade seamless and welded pipes (ASTM A106, A53, API 5L). Durable, high-pressure resistant, and ready for global shipping. Request a quote today! - [China removes VAT rebate on steel exports, cuts tax on raw material imports to zero](https://hb-steel.com/china-removes-vat-rebate-on-steel-exports-cuts-tax-on-raw-material-imports-to-zero/): On April 28, 2021, the Ministry of Finance and the State Administration of Taxation of China issued an announcement that from May 1, 2021, the export tax rebate for some steel products will be cancelled, involving a total of 146 commodity codes. At the same time, the Tariff Commission of the State Council recently issued an announcement that from May 1, 2021, tariffs on certain steel products will be adjusted, and export tariffs on ferrosilicon, ferrochromium, high-purity pig iron and other products will be appropriately increased. 25 % Export tax rate, 20% temporary export tax rate, 15% temporary export tax rate. - [Why Did Steel Prices Skyrocket in 2021? Understanding the Global Market Shift](https://hb-steel.com/why-the-price-of-steel-material-and-steel-products-keep-rising/): Explore the key drivers behind the 2021 steel price surge. From raw material costs and COVID-19 supply chain issues to global carbon policies, understand the industry shifts at Rayoung. - [12 tips about import steel pipe fittings and flanges from China](https://hb-steel.com/tips-of-import-from-china/): If you are thinking about importing and selling steel pipe fitting or flange to your place, read this guide to learn more about choose suppliers, import taxes, product regulations, labeling requirements, licenses and permits, and shipping. - [GOST-17375 Seamless Pipe Elbow](https://hb-steel.com/gost-17375-seamless-pipe-elbow/): JS FITTING produce the GOST 17375 catbon steel pipe elbows in 90 degree, 45 degree, 60 degree and 180 degree. Seamless pipe elbow and butt weld pipe elbows are both avaliable. - [Butt Weld Pipe Caps: Specifications, Materials, and Industrial Applications](https://hb-steel.com/butt-weld-pipe-cap/): Whether you are in the oil & gas sector, chemical processing, or power generation, understanding the specifications and material grades of high-quality pipe caps is essential for project success. - [Butt Weld Pipe Bend](https://hb-steel.com/butt-weld-pipe-bend/): carbon steel ASTM 1234 wpb pipe bends, 90 degree pipe bends, 45 degree pipe bends, 3d pipe bends, 5d pipe bends, 10 de pipe bends. - [Butt Weld Pipe Reducer](https://hb-steel.com/butt-weld-pipe-reducer/): JS FITTINGS produce and supply butt weld pipe reducer, concentric reducer and eccentric reducer. ASME B16.9 reducer, GOST 17378 reducer and EN 1253 reducer. - [Butt Weld Pipe Tee](https://hb-steel.com/butt-weld-pipe-tee/): In any complex piping network, the ability to safely split or combine fluid flow is critical. The Bu […] - [Butt Weld Pipe Elbow](https://hb-steel.com/butt-weld-pipe-elbow/): There are 5 common types of pipe elbows, 45 degree pipe elbow LR, 90 degree pipe elbow LR & SR, 180 degree elbow LR & SR. - [Introduction of Steel Pipe Flange](https://hb-steel.com/introduction-of-steel-pipe-flange/): What is the flange? Flanges are used when the piping joint needs dismantling. Flanges are used mainl […] - [What is a Forged Pipe Fitting?](https://hb-steel.com/forged-fitting-faq/): Forged fittings are primarily connected via Socket Weld (SW) or Threaded (NPT/BSPT) ends and are universally governed by the ASME B16.11 standard for critical, high-pressure industrial environments - [Buttweld Pipe Fittings FAQ](https://hb-steel.com/buttweld-fittings-faq/): A butt weld pipe fitting is an industrial piping component designed to change flow direction, branch off, or change pipe diameters. - [Seamless steel pipes and fittings,flanges to Chile](https://hb-steel.com/pipes-and-fittings-to-chile/): How we supplied seamless steel pipes, buttweld fittings (elbows, tees, reducers), and flanges to Chile's mining and distribution sectors. - [LSAW Steel Pipe: Specs, Comparisons, and Sourcing Strategies for Large Projects](https://hb-steel.com/lsaw-pipe/): Explore our comprehensive guide on LSAW steel pipe. Learn about API 5L specifications, the JCOE manufacturing process, and quality control. Expert tips for sourcing large-diameter welded pipes for oil & gas projects. - [Schedule 40 Steel Pipe Guide: An Intro to Sch 40 Pipe](https://hb-steel.com/sch-40-pipe/): Learn about Sch 40 dimensions, pressure ratings, and why it's the industry standard for seamless and ERW carbon steel pipes. Get expert insights from RAYOUNG. - [RAYOUNG/JS FITTINGS Large-Scale Shipments Heading to Global Markets](https://hb-steel.com/shipments/): RAYOUNG completes major shipments of seamless steel pipes, buttweld fittings, and flanges to Chile, Indonesia, UAE, and Russia. - [Our Tianjin Branch Moves to a Fresh New Space!](https://hb-steel.com/tianjin-branch/): Watch our office video tour and see how we are expanding to provide better service for your industrial pipe and flange needs. - [Industrial Flange Dimensions: Standards, Sizes, and Applications](https://hb-steel.com/flange-dimensions/): We break down ASME/ANSI B16.5, DIN standards, and pressure ratings to help you select the right flanges for oil, gas, and water systems. Get accurate specs today! - [Butt-welded Pipe Fittings VS. Threaded Fittings VS. Socket Weld Fittings](https://hb-steel.com/butt-welded-vs-threaded-vs-socket/): Choosing the optimal connection—Buttweld, Socket Weld, or Threaded—is critical for the integrity of any industrial piping system. This comprehensive guide breaks down the technical nuances between these three fitting types, comparing their performance under high pressure, vibration, and corrosive environments. - [High-Performance Seamless Steel Pipe: Guide for Industrial Procurement and Bulk Sourcing](https://hb-steel.com/seamless-pipe-guide/): RAYOUNG offers wholesale bulk supply of API 5L, ASTM A106 pipes approved by ADNOC & PETROBRAS. - [ASME B16.9 Buttweld Elbows: Specifications, Materials, and Excellence](https://hb-steel.com/asme-b16-9-elbows/): ASME B16.9 butt-weld elbows. View our comprehensive dimension and weight chart. We supply A234 WPB, Stainless, and Alloy steel elbows for global stockists and oil & gas projects. - [A Technical Guide for EPC Engineers Choose Pipe Fittings & Flanges Supplier](https://hb-steel.com/guide-for-epc/): Discover how RAYOUNG meets the rigorous technical demands of global EPC projects. From MTC 3.1 traceability to advanced NDT testing, we ensure zero-defect piping components for oil, gas, and power infrastructure. - [How to Choose a Reliable Industrial Pipe Fittings and Flanges Manufacturer Partner](https://hb-steel.com/manufacturer-for-stockists/): Steel pipe fitting and flange manager-Rayoung offers 30,000 tons annual capacity, CE/ISO/ADNOC certifications, and 95%+ on-time delivery for global stockists. - [Threaded Flanges Guide: Applications, Benefits, and Technical Specifications](https://hb-steel.com/threaded-flanges-guide/): In the complex world of industrial piping systems, selecting the right flange is critical for ensuri […] - [Raised Face Flanges vs Flat Face Pipe Flanges](https://hb-steel.com/rf-vs-ff-flanges/): Discover key differences of Raised Face Flanges and. Flat Face flanges in sealing, pressure ratings, and applications. Ensure a leak-proof system with precision-engineered flanges from RAYOUNG - [Industry Pipeline System: Carbon Steel vs. Stainless Steel vs. Alloy Steel？](https://hb-steel.com/carbon-steel-vs-ss/): In the world of industrial infrastructure, selecting the right material for your pipeline system isn […] - [Why Choose RAYOUNG/JS FITTINGS as your steel pipe fittings flanges supplier?](https://hb-steel.com/rayoung-js-fittings/): 40+ Years Expertise: Deep industry knowledge and technical heritage. One-Stop Solution: Full range of fittings and flanges under one roof. Certified Quality: Fully compliant with ASME, CE, and ISO standards. Rapid Delivery: Large inventory and optimized production schedules. Global Reach: Exporting to over 60 countries with a 98% client retention rate. - [A Buyer’s Guide to ASME Pipe Fitting Standards: B16.9, B16.28, and B16.49](https://hb-steel.com/asme-fitting-standards/): ASME B16.9, B16.28, and B16.49 are key American Society of Mechanical Engineers standards governing industrial pipe fittings. specifically covering manufactured wrought fittings (B16.9), short-radius elbows (B16.28), and hot-induction bent pipes (B16.49). - [Why High-Grade Stainless Steel Flanges Define Marine Engineering?](https://hb-steel.com/ss-flange-for-marine/): Partner with a leading China factory for bulk marine stainless steel flanges. We support large-scale shipbuilding projects with massive 316L/Duplex inventory, MTC certification, and direct factory pricing. Request a bulk quote today! - [Selecting Steel Pipe Fittings and Flanges for Water and Wastewater Treatment](https://hb-steel.com/flange-fitting-for-watertreatemtn/): Buying steel pipe fittings or flanges for water treatment? Learn about AWWA standards, 316L stainless steel vs. carbon steel, and how to order the right specs for W/WWT projects. - [A Recap of the 2026 Spring Canton Fair](https://hb-steel.com/a-recap-of-the-2026-spring-canton-fair/): Discover JSFTTINGS highlights from the 139th Canton Fair. We reconnected with long-term partners and welcomed new global clients seeking premium pipe fittings and flanges. - [ASME B16.11 Pipe Reducers and Forged Fittings: A Comprehensive Technical Deep-Dive](https://hb-steel.com/asme-b16-11-pipe-reducers/): Master the technical differences between concentric vs. eccentric pipe reducers and explore ASME B16.11 forged pipe fittings. Detailed guide on materials (A105, SS316), pressure ratings (3000#, 6000#), and industrial applications. - [ASME B16.47 Flange: Series A vs. Series B Explained](https://hb-steel.com/asme-b16-47-flange/): Learn the key differences between ASME B16.47 Flange Series A (MSS SP-44) and Series B (API 605) to choose the right flange for your piping project. - [Meet JS Fittings at the 139th Canton Fair (Spring 2026) – Visit Booth 9.1C46!](https://hb-steel.com/js-fittings-at-139th-canton-fair/): Meet JS Fittings at the 139th Canton Fair.Date: April 15th – April 19th, 2026, Booth Number: 9.1C46 - [Long & Short Radius Pipe Bends and 180° Return Introduce](https://hb-steel.com/radius-pipe-bends/): This comprehensive article provides detailed information about long radius and short radius pipe bends and returns, including their dimensions, applications, and differences. - [ASTM A234 Pipe Fittings: WPB, WPC, and Alloy Steel Solutions by Rayoung](https://hb-steel.com/astm-a234-fittings/): ASTM A234 covers carbon steel and alloy steel fittings of seamless and welded construction. The regular product have elbows, tees, reducer, etc. - [Seamless vs. Welded Steel Pipe](https://hb-steel.com/seamless-vs-welded-steel-pipe/): Choosing between seamless and welded pipes? Discover the key differences in manufacturing, pressure ratings, costs, and applications. Factory-direct insights from Rayoung. - [Carbon Steel Butt Weld Elbows: The Ultimate Guide to Dimensions, Types, and Industry Standards](https://hb-steel.com/carbon-steel-butt-weld-elbows/): Learn the difference between Long Radius (LR) & Short Radius (SR), ASTM A234 WPB standards, and ASME B16.9 dimensions. - [Carbon Steel Pipe Fittings: A Comprehensive Guide to Butt Weld Solutions for Industrial Suppliers](https://hb-steel.com/carbon-steel-pipe-fittings/): Source high-quality carbon steel pipe fittings from Rayoun. Our guide covers butt weld tube fittings, technical pipe fitting dimensions (ASME B16.9), and why our weldable solutions are the top choice for global distributors. - [The Strategic Sourcing Guide for Industrial Flanges in offshore and petrochemical industries](https://hb-steel.com/flanges-sourcing-guide-in-offshore-petrochemical/): Learn about ASTM material selection, international standards compliance, and MTC 3.1 traceability for industrial flanges. - [Why Non-Destructive Testing (NDT) is Non-Negotiable for Your Pipe Fittings](https://hb-steel.com/ndt-for-pipe-fitting/): Avoid costly pipeline failures. Discover why rigorous NDT (Non-Destructive Testing) is essential for industrial pipe fittings and flanges. - [Top 10 Common Mistakes in Buttweld Pipe Fitting Installation](https://hb-steel.com/top-10-common-mistakes-in-buttweld-pipe-fitting-installation/): Avoid costly leaks and system failures. Discover the top 10 mistakes in buttweld pipe fitting installation, from poor beveling to improper PWHT. Essential for Oil & Gas engineers. - [The 2026 Vision: Growth Through Connection](https://hb-steel.com/the-2026-vision-growth-through-connection/): As we return from the Spring Festival break, our focus is twofold: maintaining the unwavering quality of our industrial flanges and fittings, and physically reaching out to the people who use them. - [2026 Chinese New Year Holiday Notice](https://hb-steel.com/2026-chinese-new-year-holiday-notice/): Hebei RAYOUNG Pipeline Technology observes 2026 CNY holiday from Feb 12 to 23. Online support for industrial steel pipes, fittings, and flanges remains available 24/7. - [Flanged vs. Threaded Connections: Selecting the Optimal Pipe Joint for Your System](https://hb-steel.com/flanged-vs-threaded-connections-selecting-the-optimal-pipe-joint-for-your-system/): Compare flanged and threaded pipe connections. Learn the pros, cons, and best applications for each to ensure your piping system is safe, efficient, and cost-effective. - [2025 HEBEI JINSHENG Annual Gala](https://hb-steel.com/205-hebei-jinsheng-annual-gala/): A heartfelt thank you to our global partners! Highlights from HEBEI JINSHENG’s 2025 gala, showcasing our commitment to quality piping components and our strategic roadmap for 2026. - [Blind Flanges vs. Blank Flanges](https://hb-steel.com/blind-flanges-vs-blank-flanges/): Unsure about the difference between a blind flange and a blank flange? Discover technical insights on materials, pressure ratings, and applications. Read our comprehensive guide and browse our range of precision-forged industrial flanges. - [Steel Flange Standards: ASTM, ASME, AISI, and API](https://hb-steel.com/steel-flange-standards-astm-asme-aisi-and-api/): As a leading steel flange supplier, we understand that selecting the right standard is critical. This guide breaks down the essential roles of ASTM, ASME, AISI, and API. - [What is Plate Flange? Uses, Dimensions And Types](https://hb-steel.com/what-is-plate-flange-uses-dimensions-and-types/): Looking for reliable plate flanges? Our factory offers a complete range of sizes (1/2" to 60") and materials (Carbon & Stainless Steel). Compliant with ANSI B16.5 & EN 1092-1. Perfect for stockists and large-scale projects. Contact us for factory pricing! - [Slip-On Flange vs. Weld Neck Flange](https://hb-steel.com/slip-on-flange-vs-weld-neck-flange/): This guide delves into the critical differences between weld neck and slip-on flanges, providing engineers, project managers, and procurement specialists with the technical knowledge needed to make an informed decision. - [What is a Welding Neck Flange?](https://hb-steel.com/what-is-a-welding-neck-flange/): Learn everything about weld neck flanges. From manufacturing and fit-up guides to welding 45-degree elbows and a comparison with slip-on flanges. Essential for piping engineers and EPC buyers. - [Common Buttweld Fitting Issues: How to Avoid Failures in High-Pressure Systems](https://hb-steel.com/common-buttweld-fitting-issues-how-to-avoid-failures-in-high-pressure-systems/): In high-pressure piping, buttweld fittings are the backbone of a safe system. Here is how to identify and fix the most common buttweld fitting problems before they turn into costly disasters. - [Forged vs. Cast Flanges](https://hb-steel.com/forged-vs-cast-flanges/): Industry flanges can either be forged or cast. Both manufacturing methods have their advantages and disadvantages, depending on the application you have in mind for your flange. - [Difference between SMLS, ERW, LSAW, and SSAW steel pipe](https://hb-steel.com/difference-between-smls-erw-lsaw-and-ssaw-steel-pipe/): LSAW, SSAW, ERW, and SMLS (Seamless) pipes differ primarily in manufacturing method, strength, and application. - [Where are ASME B16.5 Flanges Actually Used?](https://hb-steel.com/where-are-asme-b16-5-flanges-actually-used/): From high-pressure oil rigs to chemical reactors, discover why ASME B16.5 flanges are the industry standard. Expert insights on selection, safety, and durability. - [ERW Steel Pipes in the Oil and Gas Industry: Critical Applications and Market Outlook](https://hb-steel.com/erw-steel-pipes-in-the-oil-and-gas-industry-critical-applications-and-market-outlook/): Explore the critical role of ERW steel pipes in the oil and gas industry. From upstream casing to downstream distribution, discover why procurement managers trust high-quality ERW solutions for efficient energy transmission. - [Understanding A53 Pipe: Applications, Grades, and Global Market Insights](https://hb-steel.com/understanding-a53-pipe-applications-grades-and-global-market-insights/): Discover everything you need to know about ASTM A53 carbon steel pipe — its grades, applications, and global suppliers. Learn how A53 ERW and seamless pipes support oil, gas, and construction industries worldwide, and why choosing a reliable A53 pipe manufacturer or exporter from China can ensure quality, durability, and cost-effective performance. - [ERW Pipe VS Seamless Pipe](https://hb-steel.com/erw-pipe-vs-seamless-pipe/): We break down the differences in manufacturing, cost, durability, and applications to help you choose the right product for your project. - [3D, 5D, and 8D Steel Pipe Bends Choose Guide](https://hb-steel.com/3d-5d-and-8d-steel-pipe-bends-choose-guide/): In the complex world of industrial piping—whether for oil and gas, water transport, or chemical processing—pipelines rarely run in a straight line. So click here to know the differences between a elbow and a 3D, 5D, or 8D bend. - [The Guide to API 5L Pipes: Specs, Grades, and Industrial Applications](https://hb-steel.com/the-guide-to-api-5l-pipes-specs-grades-and-industrial-applications/): API 5L steel pipes stand as the global benchmark for reliability, designed to withstand the extreme pressures and corrosive environments inherent to the oil and gas industry. - [API Steel Pipes: Essential Standards and Applications in Oil & Gas](https://hb-steel.com/api-steel-pipes-essential-standards-and-applications-in-oil-gas/): Whether involved in upstream drilling or downstream refining, understanding the specific standards and applications of API pipes is vital for ensuring operational safety and long-term project viability. - [How to Preserve Flanges During Storage Comprehensive Guide](https://hb-steel.com/how-to-preserve-flanges-during-storage-comprehensive-guide/): This article will primarily present the capacity strategy of spines. To guarantee that the spine can be securely and legitimately utilized in the pipeline system. - [What is a buttweld cap used for?](https://hb-steel.com/what-is-a-buttweld-cap-used-for/): The butt weld end caps are applied across various industries, including oil and gas, water supply, chemical processing, and power generation. - [Key Differences of Stainless Steel vs. Carbon Steel Elbows](https://hb-steel.com/key-differences-of-stainless-steel-vs-carbon-steel-elbows/): In this article, we’ll explore the differences, advantages, and best use cases for Stainless steel elbows compared to carbon steel elbows and provide you with a guide to choosing the elbow that suits your needs. - [Long Radius vs Short Radius Elbow: Key Differences Explained](https://hb-steel.com/difference-between-long-radius-elbow-and-short-radius-elbow/): This guide explains the differences, applications, and key advantages of long radius and short radius elbows, empowering engineers and buyers with nuanced insights. - [Steel Flanges in Nuclear Power](https://hb-steel.com/steel-flanges-in-nuclear-power/): Given the stringent safety requirements and extreme operating environments, nuclear flanges demand the highest tier of material quality, manufacturing precision, and flawlessness. - [Waterworks Flanges](https://hb-steel.com/waterworks-flanges/): Waterworks flange fittings seamlessly connecting pipes, valves, and pumps to ensure the efficient flow of water in municipal, industrial, and commercial settings. - [Oil & Gas Industry Flanges](https://hb-steel.com/oil-gas-industry-flanges/): Flanges can ensure a secure, leak‐free connection in pipelines, pressure vessels, and other critical equipment. That is one of the efficient components in a method to connect pipes in oil gas industry. - [Equal Tee vs Reducing Tee](https://hb-steel.com/equal-tee-vs-reducing-tee/): In piping systems, fittings are essential components that allow for the redirection, branching, or j […] - [Concentric Reducers VS. Eccentric Reducers](https://hb-steel.com/concentric-reducers-vs-eccentric-reducers/): In a piping system, there are two major types of reducers: concentric reducers and eccentric reducers. This article compares the two types of reducers . - [Buttweld Fittings Dimensions and Standard](https://hb-steel.com/buttweld-fittings-dimensions-and-standard/): Buttweld Fitting Internation Standards:ASME B16.9,ASME B16.25 , ASTM A234 / A234M,GB/T 12459,GB/T 13401,ANSI B36.10, B36.19 and more . - [Butt Weld Fittings and Wholesale Price: What Should You Know?](https://hb-steel.com/butt-weld-fittings-and-wholesale-price-what-should-you-know/): Butt weld fittings offer strong, leak-proof joints. When you buy butt weld fittings wholesale, you can get better prices. This is especially true if you buy from a reputable butt weld fitting factory in China. - [Flange Face Protection is so Important](https://hb-steel.com/flange-face-protection-is-so-important/): Steel Flange face protection can using covers, coatings, or special packing helps. It keeps flange surfaces safe. This ensures asme rules are met. It also makes things reliable and safe. - [ASTM A105 Carbon Steel Flanges: Complete Guide](https://hb-steel.com/astm-a105-carbon-steel-flanges-complete-guide/): ASTM A105 is a carbon steel material grade that has the greatest and widespread use. This is used in manufacturing forge piping components. - [Lap Joint Flanges: Specifications and Application](https://hb-steel.com/lap-joint-flanges-specifications-and-application/): We’ll cover all you need to know about lap joint flanges in this in-depth guide, including their structure, advantages, uses, installation, and considerations. - [What is a blind flange and What Is It Used For?](https://hb-steel.com/what-is-a-blind-flange-and-what-is-it-used-for/): A blind flange may be used for isolating a pipe, valve, or pressure vessel. When looking for a flange, it is important to consider the size of the pipe or conduit you are connecting. - [Butt Weld Pipe Fittings: Standards, Types & Engineering Solutions](https://hb-steel.com/what-is-butt-weld-pipe-fitting/): We offer Adequate and stable steel pipe fittings, flanges, and steel pipes supply to active engineering trading and stockists.Butt Weld Pipe Fittings And Flanges Manufacturer Since 1983. - [ASTM A105N Steel Flange: The Complete Guide to Properties, Standards, and Applications](https://hb-steel.com/what-is-astm-a105n-steel-flange/): Explore the properties, chemical composition, and heat treatment of A105N flanges. Learn why our industry a105 flanges are the top choice for high-pressure piping. - [Holiday Notice: Mid-Autumn Festival & National Day 2025](https://hb-steel.com/holiday-notice-mid-autumn-festival-national-day-2025/): we will be closed for an 8-day holiday from October 1th to October 8th, 2025. - [ASME B16.5 Class 300 vs Class 150 Steel Flanges](https://hb-steel.com/asme-b16-5-class-300-vs-class-150-steel-flanges/): Class 150 flanges withstand pressures up to 258 psi, Class 300 flanges withstand pressures up to 740 psi. - [ASTM A106 & ASME SA106 Seamless Pipes: High-Performance Piping](https://hb-steel.com/astm-a106-asme-sa106-seamless-pipes-high-performance-piping/): ASTM A106 pipes are ideally suited for high-temperature and high-pressure applications. Rayoung,Carbon steel ASTM A106 steel pipe manufactuer and exporter, inquiry will be replied to within 2 hours! - [3LPE vs. FBE: Choosing the Right Coating Steel Pipes](https://hb-steel.com/3lpe-vs-fbe-choosing-the-right-coating-steel-pipes/): FBE pipe is coated with Epoxy Coatings, it could be used for internal and exernal coating, and mostly used pipe internal coating. 3LPE will be only used for pipe external coating 3LPE. - [Carbon Steel Pipe](https://hb-steel.com/carbon-steel-pipe-2/): Carbon steel pipe & tube, also called CS pipe, are made from steel ingots or solid round steels. Rayoung offers high-quality and competitive prices for carbon steel pipes in seamless and welded, for all industrial. - [Common Materials Used in ASME Flanges and Their Applications](https://hb-steel.com/common-materials-used-in-asme-flanges-and-their-applications/): ASME flanges are critical components in countless industrial piping systems, ensuring secure and leak-free connections. - [Summiting Success: A Day of Mountains, Merriment, and Unforgettable Team Bonds!](https://hb-steel.com/summiting-success-a-day-of-mountains-merriment-and-unforgettable-team-bonds/): Summiting Success: A Day of Mountains, Merriment, and Unforgettable Team Bonds! - [JS Fittings officially becomes ADNOC's supplier](https://hb-steel.com/js-fittings-officially-becomes-adnocs-supplier/): JS Fittings has officially been approved as a supplier for the Abu Dhabi National Oil Company (ADNOC), AVL Manufacture Number: 20036035. - [45-Degree vs. 90-Degree Buttweld Steel Elbows](https://hb-steel.com/45-degree-vs-90-degree-buttweld-steel-elbows/): The difference between 45-degree and 90-degree elbows lies in their angle of bend, flow characteristics, space requirements, and applications. - [A Guide to Corrosion-Proofing ANSI B16.9 Eccentric Reducers](https://hb-steel.com/a-guide-to-corrosion-proofing-ansi-b16-9-eccentric-reducers/): In the demanding environments of industrial piping, components like ANSI B16.9 buttweld eccentric reducers are constantly challenged by the threat of corrosion. - [ASME B16.9 Buttweld Fittings Specification](https://hb-steel.com/asme-b16-9-buttweld-fittings-specification/): Published by the American Society of Mechanical Engineers (ASME), ASME B16.9 defines the dimensions, tolerances, ratings, testing methods, and markings for wrought buttwelding fittings. - [Butt Weld Fittings Types, Application, and Material Specifications – Fast Guide](https://hb-steel.com/butt-weld-fittings-types-application-and-material-specifications-fast-guide/): Butt weld fittings are one of the most popular connection types in pipeline systems. It has always been required in massive quantities in different industries, especially for the large diameter pipelines, mainly used to change direction, branch off, or mechanically join equipment to the system. - [Butt Weld Pipe Fittings in Chemical and Petrochemical Industries Pipeline System](https://hb-steel.com/butt-weld-pipe-fittings-in-chemical-and-petrochemical-industries-pipeline-system/): In the demanding environments of the chemical and petrochemical industries, the integrity and reliability of piping systems are paramount. Among the various components used to construct these systems, buttweld pipe fittings stand out for their exceptional strength and durability. - [Join Us at the CSSOPE 2025 in Shanghai– Booth: E76](https://hb-steel.com/join-us-at-the-cssope-2025-in-shanghai-booth-e76/): Invitation: Join Us at the CSSOPE 2025 in Shanghai– Booth: E76Hebei Jinsheng Pipe Fitting Manufactur […] - [How to Choose the Right Flange for Your oil and gas Pipeline?](https://hb-steel.com/how-to-choose-the-right-flange-for-your-oil-and-gas-pipeline/): The most common types of flanges used in the petrochemical industry are: lap joint flange, Blind flange, Socket weld flange, Welding neck flange, Slip-on flange. - [Butt Weld Pipe Fitting Types](https://hb-steel.com/butt-weld-pipe-fitting-types/): Buttweld fittings are components used to connect or alter sections of pipes in industrial and commercial setups.Including: Elbow, Tee,Reducer,Cross,bends. - [Socket Weld vs. Butt Weld: Choosing the Right Connection](https://hb-steel.com/socket-weld-vs-butt-weld-choosing-the-right-connection/): Socketweld Fittings are characterized in the ASME B16.11. Buttweld Fittings are characterized in the ASME B16.9. - [Top 10 Manufacturers and Suppliers of Forged Flanges in China](https://hb-steel.com/top-10-manufacturers-and-suppliers-of-forged-flanges-in-china/): China is a global leader in industrial manufacturing, and the forged flange industry is no exception […] - [Q235 Steel Pipe Fittings: Properties, Applications, and Global Equivalents](https://hb-steel.com/q235-steel-pipe-fittings-key-insights/): Learn about Q235B properties, ASTM A36 equivalents, and why RAYOUNG brand fittings are the top choice for industrial projects. - [A Comprehensive Guide to Steel 20# Material](https://hb-steel.com/a-comprehensive-guide-to-steel-20-material/): Introduction Steel 20#, a highly versatile and widely used medium-carbon steel, has carved its niche […] - [A Comprehensive Guide to ASTM A105 and A105N Materials](https://hb-steel.com/a-comprehensive-guide-to-astm-a105-and-a105n-materials/): ASTM A105 and ASTM A105N are two widely used carbon steel materials in industries that demand strength, durability, and reliability. They are primarily employed in the manufacture of forged components such as flanges, fittings, and valves for piping systems. - [Forged Flanges vs. Plate Flanges: A Detailed Comparison](https://hb-steel.com/forged-flanges-vs-plate-flanges-a-detailed-comparison/): When it comes to flanges, choosing the right type is critical for the integrity and performance of p […] - [Why RAYOUNG is the Partner You Need for Seamless Piping Solutions](https://hb-steel.com/elevating-industry-standards-with-rayoungs-seamless-pipes-and-fittings/): Our production strictly with major international standards, including ASME B16.9, EN1092, and GOST-R. Whether your specifications call for standard carbon steel tees or complex pipe elbows with precision-beveled ends, we can deliver. - [Hebei RAYOUNG Pipeline Technology Co., Ltd. Secures Registered Trademark Certificate: A Milestone in Brand Excellence](https://hb-steel.com/hebei-rayoung-pipeline-technology-co-ltd-secures-registered-trademark-certificate-a-milestone-in-brand-excellence/): Hebei RAYOUNG Pipeline Technology Co., Ltd. Secures Registered Trademark Certificate: A Milestone in […] - [Exploring Pipe Fitting Materials: Properties, Advantages, and Applications](https://hb-steel.com/exploring-pipe-fitting-materials-properties-advantages-and-applications/): Choosing the right pipe fitting material is crucial for system integrity. Explore the properties, advantages, and industrial applications of Carbon Steel, Stainless, and Alloy Steel fittings. - [Comparing Buttweld and Forged Fittings: Key Differences and Applications](https://hb-steel.com/comparing-buttweld-and-forged-fittings-key-differences-and-applications/): In the world of piping systems, understanding the differences between buttweld and forged fittings i […] - [Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd. Celebrates Prestigious Approval by Iran's Ministry of Petroleum](https://hb-steel.com/hebei-jinsheng-pipe-fitting-manufacturing-co-ltd-celebrates-prestigious-approval-by-irans-ministry-of-petroleum/): We are proud to announce a significant milestone in our company’s journey. Hebei Jinsheng Pipe […] - [Exciting News!](https://hb-steel.com/exciting-news/): Visit Rayoung/Jsfittings at NAPEC exhibition, Stand No. B37 CCO Oran, Algeria. Explore our high-grade carbon steel pipes and fittings. Connect with our engineering team for custom industrial solutions. - [Exploring the Versatile World of Steel Panels: Applications Across Industries](https://hb-steel.com/exploring-the-versatile-world-of-steel-panels-applications-across-industries/): How do steel plates (panels) transform into large-diameter pipe fittings? Explore the critical role of material grade (A36, Q235, SS304) in industrial piping fabrication and infrastructure projects. - [Comprehensive Guide to Pipe Fittings](https://hb-steel.com/comprehensive-guide-to-pipe-fittings/): Pipe fittings are essential components in plumbing and piping systems, connecting straight pipe or t […] - [6 Common Types of Industrial Flanges: The Ultimate Selection Guide for Your Piping System](https://hb-steel.com/understanding-the-six-common-types-of-flanges-usage-and-performance-comparison/): Compare the 6 common types of industrial flanges (Weld Neck, Slip-on, Blind, etc.). Learn about their applications, advantages, and technical standards from a leading China flange factory. - [Bend It Like Technology Masters](https://hb-steel.com/bend-it-like-technology-masters/): Introduction Imagine a world where pipes can bend seamlessly without compromising their structural i […] ## Pages - [Steel Pipes](https://hb-steel.com/steel-pipes/): Certified Steel Pipes Supplier Bulk Supply | Proven Quality | Global Delivery | Since 1983 RAYOUNG: […] - [Blog](https://hb-steel.com/blog/) - [HTML Sitemap](https://hb-steel.com/sitemap/) - [Steel pipe flanges](https://hb-steel.com/steel-pipe-flanges/): China Forged Steel Flanges Suppliers Forged Steel Flange Manufacturer & Supplier for Active Engi […] - [Buttweld Pipe Fittings](https://hb-steel.com/buttweld-pipe-fittings/): Butt weld Pipe Fittings Leading Manufacturer Since 1983 | Bulk Supply | Competitive Factory Pricing […] - [Policy Privacy](https://hb-steel.com/policy-privacy/): Who we are Our site address is：https://hb-steel.com Comments When a visitor leaves a comment, we col […] - [Product](https://hb-steel.com/products/): Buttweld Pipe Fittings CS Steel Pipe Elbow CS Steel Pipe Tee CS Steel Pipe Cross CS Steel Pipe Reduc […] - [Certificates](https://hb-steel.com/certificates/): Certificates Downloads CE 1 CE 2 GOST-R ISO 9001 : 2015 PC of SGS Certificate Of Works Approval QUAL […] - [factory](https://hb-steel.com/factory/): Start Producing Pipe Fittings From 1999 In 1999, RAYOUNG introduced new steel pipe fittings producti […] - [Thank You!!](https://hb-steel.com/thank-you/): Thank You ! 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JS FITTINGS Flange has been […] - [About Us](https://hb-steel.com/about-us/) - [Contact us](https://hb-steel.com/contact-us/): contact us Need steel pipe fitting & flange manufacturer?  You are more than welcomed to leave y […] - [News](https://hb-steel.com/news/): Sign up for Exclusive Purchase Tips Popular Articles Sign up for Exclusive Purchase Tips Learn the d […] - [Service](https://hb-steel.com/service/): We are here for you We envision ourselves as one of the most trusted and admired Steel Pipe fitting […] - [RAYOUNG Pipeline Technology](https://hb-steel.com/): Buttweld Pipe Fitting, Forged Flange, Steel Pipe Manufacturer Compliant with ASME, ASTM, DIN, JIS, E […] ## Products - [GOST Butt Weld Pipe Fittings](https://hb-steel.com/product/gost-buttweld-fitting/): Standard Guidelines: GOST 17375-2001: Covers carbon/alloy steel buttweld fittings. GOST 30753-2001: Applies to stainless steel buttweld fittings. GOST 12220-84: Specifies welded fittings designed for the oil and gas industries. Types of Pipe Fittings: Elbows (45°/90°/180°), equal/reducing tees, concentric/eccentric reducers, and caps. - [ASME B16.11 Forged Steel Fittings](https://hb-steel.com/product/b16-11-fittings/): ASME B16.11 Forged Steel Fittings – High-Pressure Socket Weld & Threaded Pipe Fittings Solutions Supplier ASME B16.11 is the standard for forged steel fittings, including socket weld and threaded types. Materials include carbon steel, alloy steel, and stainless steel. Also described as Class 2000, 3000, 6000 threaded end fittings and Class 3000, 6000, and 9000 for socket weld end fittings. - [ASME B16.9 Buttweld Pipe Fittings](https://hb-steel.com/product/b16-9-buttweld-fittings/): ASME B16.9 Butt Weld Fittings – Premium Factory Direct Supply for Global Piping Infrastructure Capacity: Scalable production lines for seamless (up to 24") and welded (up to 72") fittings. Traceability: Every single fitting is hard-stamped with a Heat Number linked to 3.1 MTC. Standards: Fully compliant with ASME B16.9, MSS SP-75, and DIN/EN standards. - [ASME B16.47 flanges](https://hb-steel.com/product/b16-47-flanges/): ASME B16.47 Large Diameter Flanges (26" – 60") | Series A & Series B – RAYOUNG Forged Flanges Solutions We provide high-performance ASME B16.47 large-diameter flanges, both Series A (MSS SP-44) and Series B (API 605), designed for heavy-duty industrial piping systems. Covering sizes from 26" to 60" and various pressure ratings, ensuring full compliance with international piping standards and project-specific requirements. - [Raised Face Flanges](https://hb-steel.com/product/raised-face-flanges/): Technology brief: ASME B16.5 Raised Face Flanges Materia: ASTM / ASME A/SA 105 ASTM / ASME A 350, ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706 Size: 1/2″ (15 NB) to 48″ (1200NB) or custom - [45° Buttweld Elbow](https://hb-steel.com/product/45-buttweld-elbow/): Standard: ASME B16.9, ANSI B16.28,GOST 17375, GOST 30253 ,etc Material & Grades： Carbon Steel: ASTM A234, ASME SA234 WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70. Stainless Steel: ASTM A403 WP316/316L, ASTM A403 SA / A774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404 - [Buttweld Reducing Tee](https://hb-steel.com/product/buttweld-reducing-tee/): Seamless reducing tee fitting for butt welding Butt weld tee dimensions range from 1/2”, 1”, 1 1/2”, 2′, 3”, 4”, 6”, 8”, 10”, 12”, 14”, 16”, 24”, and up to 48” (From DN 15 to DN 1200). Thickness class ranges from SCH 10, SCH 20, SCH 40, SCH STD, SCH 80, SCH XS to SCH 160. - [Buttweld Equal Tee](https://hb-steel.com/product/buttweld-equal-tee/): It connects pipes of the same diameter. The branch direction of the pipe is perpendicular to the main pipe. The wall thickness range is SCH5S-XXS. For seamless tee fittings, the size range is 1/2''–24'' (DN15–DN600), and for welded tee fittings, the size range is 1/2''–48'' (DN15–DN1200). It is made of carbon steel, stainless steel, duplex steel, or special alloy steel. - [180° Buttweld Elbow](https://hb-steel.com/product/180-buttweld-elbow/): 180 Degree Buttweld Elbow, also called buttweld 180-degree Return Bends. Material: ASTM A234, ASME A234 WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70 Types: 180 Deg Elbow, Long Radius Elbow, Short Radius Elbow, LR Elbow, SR Elbow. - [90° Buttweld Elbow](https://hb-steel.com/product/90-buttweld-elbow/): There are 45° short radius elbows and 45° long radius elbows. Long radius elbows(LR elbow) provide smaller flow resistance and pressure loss, and are suitable for general piping systems; Short radius elbows (SR elbow) are suitable for limited space or situations that require faster changes in flow direction. - [AWWA Flanges](https://hb-steel.com/product/awwa-flange/): We don’t just manufacture flanges; we engineer them to exact specifications. AWWA C207: Specialized for high-quality carbon steel flanges used in waterworks service. AWWA C228: Dedicated to stainless steel flange solutions where superior corrosion resistance is a necessity. - [GOST Forged Steel Flange](https://hb-steel.com/product/gost-standard-flange/): Industry forged steel flanges Manufacturer Rayoung supplies GOST Flanges, GOST 12820-80, GOST 12821forged Flange, GOST Flanges in forged steel, Stainless Steel, Carbon steel, etc. Standard: Plate Flanges(GOST12820-80),Blind Flanges(GOST12836-67); Welding neck Flanges(GOST12821-80); Steel Butt-Welded Flanges GOST12821-80 Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint, Zinc, Hot-dipped Galvanized. Usage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects, etc. - [ASME Flanges](https://hb-steel.com/product/asme-flanges/): ASME B16.5 flanges are specifically designed for pipe sizes ranging from ½” to 24″. They are available in pressure classes 150, 300, 400, 600, 900, 1500, and 2500. ASME B16.47 flanges cover larger-diameter pipe systems, 26″ through 60″, with pressure classes such as 75, 150, 300, 400, 600, and 900. - [Forged Steel Tee](https://hb-steel.com/product/forged-tee/): Forged Steel Tees conform to ANSI B16.9/B16.28, ASTM A105 and ASME SA105. Sizes from 1/8″ to 4″ and in various thicknesses to meet different pressure requirements. Forged Steel Tees are available with both socket weld and threaded ends. - [API 5L SSAW Steel Pipe](https://hb-steel.com/product/astm-api-5l-ssaw-steel-pipe/): Standards: API 5L (PSL1, PSL2), ASTM A252, ASTM A53, EN10217 Steel Grades:  Gr.B, X42, X46, X52, X56, X60, X70, X80 Outside Diameter (OD): 219mm – 3020mm (8" - 120") Wall Thickness (WT): 5mm – 25.4mm Length: 6m – 12m (Custom lengths up to 18m available) Pipe Ends:  Beveled ends, Square cut, or Flanged - [API 5L Seamless Steel Pipe](https://hb-steel.com/product/manufacturer-of-schedule-40-api-5l-carbon-steel-smls-pipe/): Our Supply Range for API 5L Seamless Pipe Grades: API 5L Grade B, X42, X52, X56, X60, X65, X70, X80 Thickness Schedule: SCH 10. SCH 20, SCH 40, SCH STD, SCH 80, SCH XS, to SCH 160 Manufacturing Types: Seamless (Hot Rolled and Cold Rolled), Welded ERW (Electric resistance welded), SAW (Submerged Arc Welded) in LSAW, DSAW, SSAW, HSAW Ends Type: Beveled ends, Plain ends Surface Treatment: Natural, Varnished, Black Painting, FBE, 3PE (3LPE), 3PP, CRA Clad or Lined - [Carbon Stee Blind Flange](https://hb-steel.com/product/carbon-stee-blind-flange/): Size: 1/2" (15mm) NB TO 24" (600mm) NB (ABOVE 24" NB MAKE TO ORDER BASIS) Nominal Pressure Range: 150# - 2500# Schedule: 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160, and XXS Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) Grades Available: CARBON STEEL: ASTM A 105, LF 2, LF 3 ALLOY STEEL: ASTM A182 GR. F1, F 5, F 9, F 11, F 22, F 91 STAINLESS STEEL: ASTM A182 GR. 304/304L, 316/316L, 310, 347, 321, 904L Flange Standards: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. - [ASME/ANSI B16.9 Buttweld Elbows](https://hb-steel.com/product/asme-b16-9-elbow/): ASME/ANSI B16.9 Buttweld Elbow 90°/45°/180° Long & Short Radius | Industrial Pipe Fitting Factory Outside Diameter: Seamless Elbow ( 1/2″～24″) , ERW / Welded /Fabricated Elbow (1/2″～48″) Thickness: SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80,SCH120, SCH140, SCH160, XXS Bending Radius: R=1D– 10D, 15D, 20D Angle: 180° Elbows, 90° Elbows,60° elbows and 45° Elbow, Long Radius Elbow, 180°Long Radius Returns, Short Radius Elbow and Returns Materials: Carbon steel, Stainless Steel, Alloy Steel, etc - [Buttweld Cap ASME ANSI B16.9](https://hb-steel.com/product/asme-ansi-b16-9-carbon-steel-cap/): Standard: ASTM A234, MSS SP-75, ASTM A403 Manufacturing Standard: ASME ANSI B16.9, DIN2615, JIS B2312 Size Range: 1/2”, 1”, 2”, 3”, 4”, 6”, 8”, 10”, 12”, 16”, 20” to 48”. (DN15-DN1200) Thickness: SCH 10, SCH 40, SCH 80 Material: Carbon Steel, Stainless Steel, Alloy Steel Surface Coatings: Black Painted, Varnished, Epoxy Coated, Galvanized - [ASTM A234 WPB Buttweld Tee](https://hb-steel.com/product/carbon-steel-asme-b16-9-a234-wpb-pipe-fitting-tee/): The ASTM A234 WPB buttweld Tee is manufactured using seamless or welded pipes that conform to the ASTM A106 or ASTM A53 specifications. The buttweld tee fitting is designed to withstand high-pressure applications and is ideal for use in the oil and gas, chemical processing, and power generation industries. - [Metal Braided Hose](https://hb-steel.com/product/metal-braided-hose/): Flexible Metal Hose with Braiding Flexible metal hoses are a good choice for steam, water, oil, and […] - [Olet Fittings](https://hb-steel.com/product/olet-fittings/): Forged Olet Fittings: Weld Olet, Sock Olet, and Thread Olet Size Range: Run Pipe (Header): 1/2″ to 60″ Branch Pipe (Outlet): 1/8″ to 4″ (Standard sizes); larger custom sizes available. Pressure Ratings: Socket Weld/Threaded: Class 3000, Class 6000. Butt-weld (Weldolet): SCH 40, SCH 80, SCH 160, SCH XXS. Surface Treatment: Black Phosphating, Anti-rust Oil, Hot-Dip Galvanizing, or Pickling & Passivation (for Stainless Steel). - [Rubber Expansion Joint With Tie Rod](https://hb-steel.com/product/rubber-expansion-joint-with-tie-rod/): What is a rubber expansion joint? A rubber expansion joint is a flexible connector consisting of nat […] - [Double Sphere Threaded Union Rubber Expansion Joint](https://hb-steel.com/product/double-sphere-threaded-union-rubber-expansion-joint/): Double Sphere Threaded Union Rubber Expansion Joint Female threaded ends make installation of these […] - [Double Sphere Rubber Expansion Joint](https://hb-steel.com/product/double-sphere-rubber-expansion-joint/):   - [Galvanized Steel Pipe](https://hb-steel.com/product/galvanized-steel-pipe/): Galvanized steel pipe includes Two types: hot-dipped galvanized steel pipe and cold galvanized steel pipe. The galvanized layer will strengthen the anti-corrosion performances of steel pipes. - [LSAW Steel Pipe for Oil and Gas Pipelines](https://hb-steel.com/product/lsaw-steel-pipe/): Standards：ASTM A53, ASTM A106、API 5L、ASTM A519, ASTM A213/A213M Length: 6m – 18m (Custom lengths available upon request) Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends Application: Used for oil/gas/water Transmission, Engineering/Offshore projects, and Structural Support in Industrial Construction - [FBE Coated Steel Pipe](https://hb-steel.com/product/epoxy-coated-steel-pipe/): Pipe Type: FBE (Fusion Bond Epoxy) Coated Pipe, Epoxy Coated Carbon Steel Pipe, Single-layer Anti-corrosion Epoxy Powder Pipe, Double-layer FBE Coating Pipes Application: Used for natural gas, petroleum, water & sewage, and pipe systems. In such cases, they should exhibit high resistance to corrosion from chemicals, moisture, and harmful environments. Pipe Type: Submerged Arc Welded (LSAW/SSAW pipe), Electric Resistance Welded（ERW pipe） End: Plain End/Bevelled End, Burr Removed Surface: One Layer / Double Layer FBE anti-corrosive coating powder. - [3PE Coated Steel Pipe](https://hb-steel.com/product/3pe-coated-steel-pipe/): No matter it is a seamless steel pipe of welded steel pipe, stainless steel pipe or alloy steel pipe, nickel alloy pipes or CRA clad or lined pipe, it can do 3PE coating for the pipes. The 3PE Coating Steel Pipe enjoys good impact resistance, abrasive resistance, shock resistance, acid resistance, high quality, and long service life. - [Spiral Submerged Arc Welded Steel Pipe](https://hb-steel.com/product/spiral-submerged-arc-pipe/): Outside Diameter (OD) 219mm – 3500mm (8" – 137") Wall Thickness (WT) 5mm – 30mm Length 6m – 18m (Custom lengths available upon request) Standard API 5L (PSL1, PSL2), ASTM A252, ASTM A53, EN10219, GB/T 9711 The SSAW steel pipe is widely used in long-distance pipeline projects for the transmission of oil, natural gas, water as well as coal gas, etc, and also is used in all kinds of engineering, such as chemical industry, electric power, irrigation, construction, and piling, etc. - [Electric Resistance Welded Pipe](https://hb-steel.com/product/electric-resistance-welded-pipe/): Product:  ERW (Electric Resistance Welded ) Steel Pipe, Carbon Steel ERW Pipe/tubes Application:  Used for Oil/Gas/Water transmission, Machinery Manufacturing, Bearing Piles, Combination Walls, Mining Size:  OD: 21.3-660mm, WT: 1.0-20mm  LENGTH: 5.8/6/11.8/12m or custom Pipe Standard: API 5L  PSL1/PSL2    Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70 ASTM A53, A500,A252 ,A178, JIS G3466 AN/NZS 1163,AN/NZS 1074,EN10219-1        EN10217-1 - [Schedule 40 ERW Steel Pipe](https://hb-steel.com/product/schedule-40-erw-steel-pipe/): The ASTM A53 Grade B Schedule 40 pipe is one of the most popular pipes, made from carbon-based alloy. While the added alloying materials improve the mechanical properties of the ASTM A53 Gr. - [ASTM A53 A & B Steel Pipe](https://hb-steel.com/product/astm-a53-erw-steel-pipe/): ASTM A53 Grade A & B Steel Pipe Supply Specifications: ASTM A53 Grade A and B Types: Seamless, Welded (ERW), Galvanized steel pipes Sizes: custom Thickness: Schedule 10, 40, STD, XS, to XXS Ends: Plain, Beveled, Threaded Length: 20 ft, 40 ft, customized Coating: 3PE, FBE, Varnished, Black, Zinc Coated We can monthly produce more than 10000 tons of ASTM A53 ERW pipes in SRL or DRL, according to the customer’s requirements. - [A53b ERW Steel Pipe](https://hb-steel.com/product/a53b-erw-steel-pipe/): ASTM A53 Gr. B is a very common steel grade in ASTM Specification. We can monthly produce more than 10000 tons of ASTM A53 Grade B SCH 40 ERW pipes in SRL or DRL, according to the customer’s requirements. - [Carbon Steel Butt Weld Pipe Cross](https://hb-steel.com/product/carbon-steel-pipe-cross/): Feature Details Product Type Equal Cross, Reducing Cross (4-Way Fitting) Material Grade ASTM A234 WPB, WPC, A420 WPL6, ST37.0, S235JR Size Range Seamless: 1/2" - 24"; Welded: 24" - 72" Wall Thickness SCH10, SCH20, SCH40, STD, SCH80, XS, SCH160, XXS Standard ASME B16.9, DIN 2615, JIS B2312, EN 10253 Surface Treatment Black Painting, Anti-rust Oil, Hot-Dipped Galvanized - [Carbon Steel Pipe Bends](https://hb-steel.com/product/carbon-steel-pipe-bends/): Material: Carbon Steel ASME / ASTM SA / A234 WPB, DIN 1.0405 Dimension: ASME /ANSI B16.9, ANSI B16.28, JIS B2312, JIS B2313 Form: Long radius Bend, Hot bend, With R=3D, 5D, 6D, 8D, 10D & Customized Bend Range: 2″NB TO 18″ NB ANSI B 16.9 IN Types: SEAMLESS / WELDED/ FABRICATED - [Single Sphere Rubber Expansion Joint](https://hb-steel.com/product/single-sphere-rubber-expansion-joint/): Industrial Grade Single Sphere Rubber Expansion Joint: Reliable Vibration & Displacement Control Rayoung’s single-sphere rubber expansion joints (also known as flexible rubber joints) are designed to provide a flexible connection between pipes. They effectively absorb noise and shocks, ensuring your industrial system runs smoothly and lasts longer. - [A106 Seamless Steel Pipe](https://hb-steel.com/product/a106-seamless-pipes/): ASTM A106 seamless steel pipe could transport fluids or gases at high temperature and pressure levels, with 3 grades A, B, and C seamless steel pipes are most commonly used in ASTM A106 Grade B. A106 seamless pipes are widely used in the projects of oil and gas refineries, power plants, petrochemical plants, and boilers. - [Butt Weld Concentric Reducer](https://hb-steel.com/product/gost-steel-pipe-fittings/): ASME B16.9 Butt Weld Concentric Reducer Seamless concentric reducer for butt welding Sch40 (Std) weight wall thickness Made of black ASTM A234 WPB carbon steel material Conforms to the ASME B16.9 standard for butt weld fittings. - [GOST 17376 Buttweld Tee](https://hb-steel.com/product/gost-17376-seamless-pipe-tee/): Approved by GOST-R, our seamless buttweld pipe tees have been exported to Russia, Belarus, Ukraine, Kazakhstan, Uzbekistan, etc. Now, our company has become the designated supplier of the National Iranian Oil Company, Abu Dhabi National Oil Company, and Petrobras. - [GOST 17375 Seamless Pipe Elbow](https://hb-steel.com/product/gost-17375-seamless-pipe-elbow/): The absence of any weld seams in seamless steel pipe elbows enhances their structural integrity and resistance to leaks, making them ideal for high-pressure and high-temperature applications within the Seamless Steel Drawing Pipes industry. Rayoung is one of the leading manufacturers of buttweld steel Seamless pipe elbows. Standard and customized degrees are acceptable. - [Butt Weld Pipe Fittings](https://hb-steel.com/product/seamless-butt-weld-steel-pipe-fittings/): We offer an extensive selection of premium butt weld fittings, available in both welded and seamless types to meet diverse industrial needs. The available materials include Carbon steel, Mild steel, LTCS, and Alloy Steel. - [ASME/ANSI Standard & Custom Engineered Non-Standard Industrial Flanges](https://hb-steel.com/product/asme-ansi-standard-and-non-standard-industry-flanges/): Standards: Fully compliant with ASME B16.5, B16.47 Series A/B, ANSI, DIN, EN, and MSS SP-44. Factory Direct: in-house forging. No MOQ for standard sizes. Customization: Expert in non-standard dimensions, special hole patterns, and complex geometries based on your CAD drawings. Material Assurance: Every shipment includes 3.1 Mill Test Reports (MTR). Available in Carbon, Stainless, and Duplex Alloy Steel. Pressure Range: Class 150 to Class 2500; PN6 to PN400. Fast Lead Time: 2-4 weeks for custom non-standard orders. - [HDPE Flanges](https://hb-steel.com/product/hdpe-flange/): HDPE pipe flange‌ is a connection method used to connect HDPE pipes with other pipeline materials or equipment, such as steel pipes, valves, pumps, etc. This method requires the use of HDPE Stub Ends and connects two flanged pipes together with bolts and nuts - [HDPE Pipe Tee](https://hb-steel.com/product/hdpe-pipe-fittings-polyethylene-butt-fusion-welding-fittings/): Electrofusion pipe fittings, HDPE pipe tee; 2. plastic pipe fitting, HDPE; 3. PE coupler,tee,elbow,reducer,cap end,stub end,flanged adaptor etc.; 4. International Standards; 5. Dimension:DN16mm - DN1400mm,1/4''-24'' - [Butt Weld Cross](https://hb-steel.com/product/pipe-cross/): Made of carbon steel,stainless steel, or alloy steel, butt weld cross fitting has corrosion resistance and can withstand the erosion of corrosive media such as oxidation, acidity, alkalinity, and salt solutions. Wall thickness range: SCH5S-XXS - [Plate Flange](https://hb-steel.com/product/plate-flange/): Rayoung offer carbon steel and stainless steel plate flanges in a variety of sizes, thicknesses, and standards, ensuring that we meet your project needs. Size range: 1/2″-24″, 24″-60″, customized dimension Pressure: America Series: Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500. Europe Series: PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320, PN400. - [Butt Weld Pipe Eccentric Reducer](https://hb-steel.com/product/steel-pipe-reducer/): ASME B16.9 Butt Weld Eccentric Reducer Seamless eccentric reducer for butt welding Sch40 (Std) weight wall thickness Made of black ASTM A234 WPB carbon steel Material Conforms to the ASME B16.9 standard for butt weld fittings. - [HDPE Pipe Fittings](https://hb-steel.com/product/hdpe-pipe-fittings/): TEE•75mm•63 mm•quick•End Cap•Reducer•Sprinkler•manufacturer•HDPE fittings•HDPE Pipes Fittings - [Buttweld Seamless Steel Pipe Bends](https://hb-steel.com/product/steel-pipe-bends/): Rayoung manufactures precision-engineered butt-weld pipe bends for industrial applications requiring exceptional flow characteristics and durability. Our steel pipe bends are available in carbon steel, stainless steel, and alloy materials with optional protective coatings. - [Tee| Buttweld Pipe Fitting| International Standard](https://hb-steel.com/product/carbon-steel-pipe-tee/): Standards: ASME B16.9, ASME B16.28, ASME B16.49, GOST 17375, GOST 30753-2001, GOST 17376, GOST 17378, GOST 17379,EN 10253,etc. Types: Buttweld equal tee, reducing tee. Material: carbon steel, stainless steel, Alloy steel. Technique: Cold Drawing, welding, seamless tee, and seam welding tee - [Spectacle Blind Flange](https://hb-steel.com/product/blind-flange/): Sizes: 1/2" - 96" or customized Rating Classes: 150#, 300#, 600#, 900#, 1500#, 2500# Face Options: Flat, Raised, RTJ Male, RTJ Female Material: carbon steel, stainless steel, alloy steel Surface Treatment: General coated flange: Black Painting, Anti-rust Oil, red Painting, Gold Painting Specially coated flange: Epoxy coated flange, Galvanized flange, PP coated flange Standards: ASME B16.48, B16.47, B16.5, ANSI,GOST,EN,BS,SANS,DIN,JIS. - [Lap Joint Flange](https://hb-steel.com/product/lap-joint-flange/): Available Material Carbon steel: ASTM A105, A350 LF2 Stainless steel: A182 F304/F304L/F316/F316L/F321 Alloy steel: ASTM A182, GR F1, F11, F22, F5, F9, F91 Dimensionslap joint flange Common Outer Diameters: 1/2'' to 24'' Wall Thickness Schedule: SCH 10, SCH 40, SCH 160 - [Socket Weld Flange/SW Flange](https://hb-steel.com/product/socket-weld-flange/): Material Standard: Carbon steel ASTM A105, ASTM A350 LF1/2, ASTM A181 Alloy steel ASTM A182 F5, F9, F11, F22, F91 Stainless steel ASTM A182 F304/L, F316/L Outer Diameters: 1/2 inch to 24 inch, up to 2500# Special made: 24'' to 60'', up to 900# Wall Thickness: Schedule 40 to 160 Pressure Ratings: Class 150 to Class 2500 Face Type: RF, RTJ - [Carbon Steel Buttweld Pipe Elbow](https://hb-steel.com/product/steel-pipe-elbow/): Our Supply Range For Buttweld Elbows Standard: ASTM A234, MSS SP-75, ASTM A403 Manufacturing Standard: ASME B16.9, DIN2615, JIS B2312 Types: 45-degree elbow, 90-degree elbow, 180-degree elbow Size Range: 1/2”, 1”, 2”, 3”, 4”, 6”, 8”, 10”, 12”, 16”, 20” to 48”. Thickness: SCH 10, SCH 40, SCH 80,or customed Surface Coatings: Black Painted, Varnished, Epoxy Coated, Galvanized - [Socket Weld Pipe Fittings](https://hb-steel.com/product/sw-fitting/): Precision-Engineered Forged Fittings for High-Pressure Critical Systems   Standard: ASME B16.11, BS 3799, MSS SP-83, MSS SP-79. Pressure Ratings: 3000 lbs, 6000 lbs, 9000 lbs (Class 3000, 6000, 9000). Size Range: 1/8" to 4" (DN6 to DN100). Main Materials (Carbon Steel): ASTM A105 / A105N: The most common grade for ambient and high-temperature service. ASTM A350 LF2: Specifically for low-temperature applications. ASTM A694: For high-yield transmission service (F42, F52, F60, F65, F70). - [Slip on Flange](https://hb-steel.com/product/slip-on-flange-2/): Standards: ASME B16.5, ANSI B16.47, EN1092-1, JIS B2220, DIN 2576. Pressure Classes: Class 150, 300, 600, 900, 1500, 2500; PN6 to PN160. Materials: Carbon Steel (A105, A350 LF2), Stainless Steel (F304/304L, F316/316L), Alloy Steel. Quality Guarantee for Large Projects: We understand the requirements of terminal users in the Oil, Gas, and Power industries. Every Slip-On flange undergoes 100% visual and dimensional inspection. - [Threaded Flange](https://hb-steel.com/product/threaded-flange/): Forged steel Threaded flanges feature tapered internal threads for quick connection to external pipe threads, offering the significant advantage of weld-free installation. Size Range: Stocked from 1/2" to 8"; NPT threads available up to 24" upon request. Ratings: Pressure classes from 150# to 1500#. Material Standards: Carbon Steel: ASTM A105 Stainless Steel: ASTM A182 (Available in 304L and 316L) Pressure Classes: A comprehensive range from 150# to 1500#. - [Welding Neck Flange](https://hb-steel.com/product/weld-neck-flange/): Common outer diameters: 1/2”, 2”, 3”, 4”, 6”, 8”, 10”, 12” to 24”. Product Name: Forged Weld Neck Flange (WN Flange) Pressure Ratings: Class 150 to Class 2500, PN2.5 to PN 250 Materials: Carbon Steel, Stainless Steel, Alloy Steel Standards: ASTM A105,A182 , ASME B16.5, B16.47, EN1092-1, DIN, JIS, GOST (Inquiry response within 2 hours) [comment]: # (Generated by Hostinger Tools Plugin)