Spiral Submerged Arc Welded Steel Pipe

Our SSAW steel pipe production lines are equipped with world-class production and inspection equipment, and they can manufacture all kinds of SSAW pipe with high steel grade, large wall thickness, and high quality as per API 5L and GB/T9711, etc.

The SSAW steel pipe has the right to use the API monogram.

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.

Production Description

Spiral Submerged Arc Welded (SSAW) Steel Pipe

SSAW steel pipe, or Spiral Submerged Arc Welded steel pipe, refers to a type of spirally welded steel pipe manufactured using a double-sided submerged arc welding process. These pipes are crafted from narrower sheets or hot-rolled coils, a method that significantly lowers their production expenses. The spiral welding technique facilitates the creation of large-diameter pipes, ideal for the high-volume transportation of oil and gas.

Key Advantages of SSAW Steel Pipe:

1. Versatile Diameter Production: SSAW pipes can be produced in various diameters using steel strips of uniform width. This is particularly beneficial for manufacturing large-diameter pipes from narrower strip steel.
2. Enhanced Pressure Resistance: Spiral welds experience considerably less stress under the same pressure conditions compared to straight seams, typically 75% to 90% of straight seam welded pipes. This inherent strength allows them to withstand greater pressures. Consequently, for a given outer diameter and pressure, the wall thickness of an SSAW pipe can be reduced by 10% to 25% compared to a straight-welded pipe.
3. Precise Dimensions: SSAW pipes boast accurate dimensions, with a general diameter tolerance not exceeding 0.12%. Deflection is typically less than 1/2000, and ellipticity is under 1%, often eliminating the need for additional sizing and straightening processes.
4. Continuous and Efficient Production: The continuous production capability of SSAW pipes theoretically allows for infinitely long steel pipes. This results in minimal cutting and tail-end losses, boosting metal utilization by 6% to 8%.
5. Operational Flexibility: Compared to straight seam welded pipes, SSAW production offers greater operational flexibility and simplifies the adjustment for different pipe types.
6. Lightweight Equipment and Lower Investment: The equipment required for SSAW production is relatively lightweight, leading to a smaller initial investment. This allows for the creation of trailer-mounted mobile units, enabling direct pipe production at pipeline construction sites.
7. Ease of Automation: The manufacturing process of SSAW pipes is well-suited for mechanization and automation, contributing to efficient and consistent production.

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Specification

 

Application: Used for oil/gas/water transmission,construction & structure parts
Size: OD: 219mm-4064mm
WT: 3.2mm-40mm
Length: 5.8 /6 / 11.8 / 12 / 18 / 32 / 48m
Pipe Standard: API 5L PSL1/ PSL2 Gr.A Gr.B, X42, X46, X52, X60, X65, X70
ASTM A53 ,Gr.A, Gr.B,
ASTM A252 Gr. 1, Gr. 2, Gr.3  ASTM A500
AS /NZS 1163 , AS /NZS 1074
EN10219 ,EN 10217, etc.

Standard

 

Classification Standard Main Products
Line Pipe API 5L PSL1/2 Line pipe
Casing API 5CT/    ISO 11960 PSL1 Steel pipe for use as casing or tubing for wells of the petroleum and natural gas industries
Steel Pipe for Fluid Service ASTM A53 Black and hot-dipped galvanized, welded, and seamless steel pipe
BS EN10217-2 Welded steel tubes for pressure purposes – delivery technical conditions – part 2: Electrically welded non-alloy and alloy steel tubes with specified elevated temperature properties
BS EN10217-5 Welded steel tubes for pressure purposes – delivery technical conditions – part 5: submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties
Steel Pipe for Ordinary Structure ASTM A252 Welded and seamless steel pipe piles
BS EN10219-1 Cold-formed welded structural hollow sections of non-alloy and fine-grain steels – Part 1: Technical delivery conditions
BS EN10219-2 Cold-formed welded structural hollow sections of non-alloy and fine-grain steels – Part 2: tolerances, dimensions, and sectional properties

Technological process

Spiral Submerged Arc Welded Steel Pipe ssaw pipes Technological process

Cooperate with Rayoung, you will enjoy the following benefits.

Pre-sale Service

Cooperation guidance Production process updates Documents of clearance

After-sale Service

1-year warranty time of the products. Any feedback will be replied to within 2 hours. 
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Free Sample

If you need samples in small sizes such as 1", 2", and only one or two pieces, samples are free.

Free Sample

You only need to pay for the courier cost. 
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Fast Quotation

The factory price list can be supplied within 1 day in working days. 

Factory Price

We are a factory of 38 years old, some items are in stock.
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Cerfifications

Our factory and products are approved by ISO 9001, CE, TUV, CCS and GOST-R.

Test & Inspection

Before delivery, the SGS inspection, Ultrasonic test and other inspections are acceptable. 
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Customers say:

Boran
Boran Turkey
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The flanges are exactly in line with our requirement technically and competitive commercially.
Faris
FarisOman
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We tested the elbows and flanges, their performance is very nice. We will make the new purchase plan for the warehouse.
Hung
HungVietnam
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like the product.. quick response and also nice people.
Anton
AntonRussia
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This product is exactly in line with our requirement technically and competitive commercially.
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