High-Strength Spiral Welded Pipe Solutions
Spiral pipe, also known as spiral welded pipe (SSAW, Spiral Submerged Arc Welded Pipe), is a steel pipe welded by spiral forming with hot-rolled steel strip as raw material. It has the characteristics of high strength, strong pressure bearing capacity and wide size range, and is widely used in transportation pipelines, structural support and other fields.
High-Strength Spiral Welded Pipe Solutions — Ideal for Transport and Structural Applications
Contact us, also known as spiral welded pipe (SSAW, Spiral Submerged Arc Welded Pipe), is a steel pipe welded by spiral forming with hot-rolled steel strip as raw material. It has the characteristics of high strength, strong pressure bearing capacity and wide size range, and is widely used in transportation pipelines, structural support and other fields.
Introduction to production process
The spiral pipe is made of hot-rolled steel strip as raw material. After leveling and trimming, it is rolled into a pipe by spiral forming. At the same time, double-sided submerged arc welding technology is used for continuous welding inside and outside. After welding, the steel pipe will undergo non-destructive testing, water pressure testing and other quality inspections to ensure that the weld is uniform and firm and the pipe body is reliable in pressure bearing. Then, it will be cut to size, end processing and surface anti-corrosion treatment will be carried out according to the use requirements, and finally a high-strength spiral welded pipe product that meets the standards will be formed.
Size range
|
Outer diameter (OD) |
219mm-3620mm |
|
Wall thickness (WT) |
5mm -25.4mm (customizable) |
|
Length |
is usually 6m, 12m, and can be customized as required |
|
Material |
Q235B, Q345B, L245–L485, X42–X70, etc. |
|
Standard |
SY/T5037, GB/T9711, API 5L, etc. |
Pipe end treatment method
|
Plain End |
suitable for welding connection or secondary processing |
|
Beveled End |
convenient for butt welding, commonly used in pipeline transportation |
|
Flanged End |
suitable for detachable connection occasions |
|
Threaded End |
suitable for small diameter or specific working conditions |
|
End Facing and Beveling /anti-rust treatment |
improve connection quality and avoid rust |
Surface treatment options
Black pipe (original pipe) | No special treatment, suitable for non-corrosive environment or subsequent processing
Anti-rust paint coating | Simple protection such as surface spraying red lead paint, epoxy primer, etc.
Hot-dip galvanizing | Suitable for lightly corrosive environment, enhanced weather resistance
3PE anti-corrosion layer | Three-layer structure, commonly used for buried pipelines such as oil and gas
Epoxy coal tar coating | Commonly used for municipal drainage and bridge piling
FBE single/double layer | Meets high-standard anti-corrosion requirements, suitable for drinking water and natural gas pipelines
Common uses
Oil and natural gas transportation: long-distance high-pressure pipeline system;
Water supply pipeline: industrial and municipal water supply projects;
Pile foundation engineering: port terminals, bridges, high-rise building support structures;
Structural components: steel structure columns, brackets, beams, etc.;
Drainage and sewage: municipal drainage, industrial discharge systems.