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EN10219 S235JRH S355J0H SSAW HSAW welded steel structural spiral pipe
Out Diameter: 219.1 – 3620mm
Wall Thickness: 6 – 25.4 mm
Length: 6M/ 12M or Customized
Ends: Plain Ends/ Beveled
Usage: Oil and Gas Pipeline/ Casing/ Structure, etc
Surface： Black/ Varnish/ Galvanized/ 3PE/ 3LPP, etc
Product Description
What is SSAW Spiral Welded Pipe?
A spiral welded pipe, also known as a helical-welded pipe or SSAW (Spiral Submerged Arc Welded) pipe, is a type of steel pipe manufactured by forming a steel strip or coil into a helical (spiral) shape and then welding the abutting edges together.
Standard of SSAW Spiral Welded Pipes
We provide all grades of these standards:
- API 5L: A, B, X42, X46, X52, X56, X60, X65, X70, X80;
- ASTM A53: Gr. A, Gr. B, Gr. C, Gr. D;
- ASTM A252: GR 1, GR 2, GR 3
- EN10217: P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2;
- EN10219: S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H
We divide the standard of spiral steel pipe according to different uses：
| Classfication | Standard | Mian Products | ||
| Line Pipe | API 5L PSL1 | Line Pipe | ||
| Casing | API 5CT | 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-hipped galvanized, welded, and seamless steel pipe | ||
| EN10217-2 | Welded steel tubes for pressure purposes – delivery technical conditions – part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties | |||
| 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 | ||
| EN10219-1 | Cold-formed welded structural hollow sections of non-alloy and fine-grain steels – Part 1: Technical delivery conditions | |||
| EN10219-5 | Cold-formed welded structural hollow sections of non-alloy and fine-grain steels – Part 2: Tolerances, dimensions and sectional properties | |||
Key Characteristics and Advantages of SSAW Welded Steel Pipes:
- Large Diameters: Spiral welding is particularly well-suited for producing large-diameter pipes (ranging from 14 inches to over 100 inches) from narrower steel strips, which is a significant advantage over other welding methods.
- Continuous Production: The continuous nature of the spiral welding process allows for the production of very long pipe lengths, minimizing waste and increasing efficiency.
- High Strength: The spiral weld itself is often subjected to less stress than straight seams in longitudinally welded pipes, making spiral welded pipes capable of withstanding higher pressures with potentially thinner walls (10-25% thinner for the same pressure compared to straight-seam pipes). The continuous weld also contributes to a stronger, more consistent bond.
- Flexibility and Versatility: Spiral welded pipes offer design flexibility in terms of diameter and wall thickness. They can accommodate various materials, including carbon steel, stainless steel, and alloy steel.
- Cost-Effectiveness: The efficient continuous manufacturing process and the ability to use narrower coils can lead to lower production costs.
- Good Crack Propagation Resistance: The spiral structure of the weld can help in stopping the propagation of cracks, making them more resilient in certain applications.