In the complex world of industrial piping, fluid and gas distribution efficiency is paramount. Whether you are constructing a high-pressure oil refinery or a municipal water treatment plant, the integrity of your connection components is non-negotiable. Among these, the ASME B16.9 buttweld pipe cross plays a critical role in splitting or combining flow in four directions.
At RAYOUNG, we are a leading manufacturer of industrial-grade pipe fittings.
In this guide, we break down everything you need to know to specify and source these essential fittings.
What is an ASME B16.9 Buttweld Pipe Cross?
An ASME B16.9 buttweld pipe cross is a four-way fitting with ends designed to be butt-welded directly to the pipe. Unlike threaded or socket-weld fittings, butt-weld connections offer a stronger, leak-proof permanent joint, making them the standard choice for high-pressure and high-temperature industrial environments.
Key Types of Pipe Crosses
Equal Cross: All four branches share the same nominal diameter and wall thickness. This is primarily used for maintaining constant flow pressure in a balanced piping network.
Reducing Cross: The run and branch connections feature different sizes. These are essential for systems where flow needs to be diverted into smaller branch lines or combined from unequal pipe dimensions.

Technical Specifications
When sourcing pipe fittings, the ASME B16.9 standard is your assurance of quality. It ensures that dimensions, physical tolerances, and pressure ratings are consistent across manufacturers.
Size Range: Our production capability spans from NPS 1/2″ to NPS 48″ (DN 15 to DN 1200), covering everything from small-bore utility lines to large-diameter transmission pipelines.
Material Selection:
Carbon Steel: ASTM A234 WPB and WPHY grades are our primary recommendations for high-pressure systems.
Stainless Steel: For environments requiring corrosion resistance, we manufacture using ASTM A403 WP304/304L and WP316/316L.
Wall Thickness & Ratings: We produce fittings to match all standard pipe schedules, including SCH 10, SCH 40/STD, SCH 80/XS, and up to XXS, ensuring your fittings withstand the most demanding operating pressures.
ASME B16.9 Buttweld Equal Cross Dimensions
| Nominal Pipe Size (NPS) | DN | Outside Diameter at Bevel | Center- to-End | |
|---|---|---|---|---|
| Run. C | Outlet. M[Notes(1) and (2)] | |||
| 1/2 | 15 | 21.3 | 25 | 25 |
| 3/4 | 20 | 26.7 | 29 | 29 |
| 1 | 25 | 33.4 | 38 | 38 |
| 1-1/4 | 32 | 42.2 | 48 | 48 |
| 1-1/2 | 40 | 48.3 | 57 | 57 |
| 2 | 50 | 60.3 | 64 | 64 |
| 2-1/2 | 65 | 73.0 | 76 | 76 |
| 3 | 80 | 88.9 | 86 | 86 |
| 3-1/2 | 90 | 101.6 | 95 | 95 |
| 4 | 100 | 114.3 | 105 | 105 |
| 5 | 125 | 141.3 | 124 | 124 |
| 6 | 150 | 168.3 | 143 | 143 |
| 8 | 200 | 219.1 | 178 | 178 |
| 10 | 250 | 273.0 | 216 | 216 |
| 12 | 300 | 323.8 | 254 | 254 |
| 14 | 350 | 355.6 | 279 | 279 |
| 16 | 400 | 406.4 | 305 | 305 |
| 18 | 450 | 457 | 343 | 343 |
| 20 | 500 | 508 | 381 | 381 |
| 22 | 550 | 559 | 419 | 419 |
| 24 | 600 | 610 | 432 | 432 |
| 26 | 650 | 660 | 495 | 495 |
| 28 | 700 | 711 | 521 | 521 |
| 30 | 750 | 762 | 559 | 559 |
| 32 | 800 | 813 | 597 | 597 |
| 34 | 850 | 864 | 635 | 635 |
| 36 | 900 | 914 | 673 | 673 |
| 38 | 950 | 965 | 711 | 711 |
| 40 | 1000 | 1016 | 749 | 749 |
| 42 | 1050 | 1067 | 762 | 711 |
| 44 | 1100 | 1118 | 813 | 762 |
| 46 | 1150 | 1168 | 851 | 800 |
| 48 | 1200 | 1219 | 889 | 838 |
Why Leading Engineering Firms Choose RAYOUNG
At RAYOUNG, we don’t just manufacture parts; we provide solutions for critical infrastructure. Located in Cangzhou, Hebei, our 35,000+ sqm production facility is dedicated solely to industrial-grade fittings and flanges
Proven Global Quality
With certifications including ISO, CE, GOST-R, PETROBRAS, ADNOC, and NIOC, our products are trusted in the most rigorous sectors, including Oil & Gas, Mining, and large-scale factory construction.
Efficiency for Every Client Type
- Stock Distributors: We provide the high-volume, consistent quality needed to maintain your inventory.
- Trading Companies: Rely on our 2-hour response time and 24-hour proposal delivery to help you close your deals faster.
- Engineering Contractors: Our 95% on-time delivery rate and <0.5% complaint rate ensure your project timeline remains undisturbed.
Rapid Lead Times
We know that in industrial projects, time is money. With a production capacity of 90+ containers per month, we can fulfill standard orders with a lead time of just 15-30 days.
Expert Tips for Sourcing Your Pipe Crosses
When requesting a quote, always clarify the following to ensure a smooth procurement process:
Pipe Schedule/Wall Thickness: Do not just specify the size; the schedule is vital for pressure compatibility.
Material Grade: Ensure the chemical composition matches your project’s corrosion and temperature requirements.
End Preparation: Specify if the ends should be beveled for welding (standard) or require specific surface finishes.
Partner with RAYOUNG Today
Are you looking for a reliable manufacturer of ASME B16.9 buttweld pipe crosses? RAYOUNG combines massive production scale with the precision of industrial-grade engineering.
Need a fast quote for your upcoming project?
Contact us today:
info@hb-steel.com
Experience our 7×24 support: Whether you are an engineering contractor or a global distributor, our team is ready to provide a competitive proposal within 24 hours.
RAYOUNG – Butt Weld Pipe Fittings And Flanges Manufacturer Since 1983