What is API 5L, ASTM A53, ASTM A252, EN 10219, EN 10217 SSAW SSAW Pipe
API 5L, ASTM A53, ASTM A252, EN 10219, EN 10217 SSAW SSAW (Spiral Submerged Arc Welding) is a welding method for producing spiral-seam steel pipes using submerged arc automatic welding technology. In this process, steel strips are helically formed and welded simultaneously on both inner and outer seams, offering technical advantages such as a 30-100% increase in weld length, high wall thickness precision, and a compact equipment footprint.
The pipe diameter range covers Φ219mm to Φ3600mm, with wall thickness up to 30mm, complying with international and domestic standards such as API SPEC 5L and GB/T9711.
SSAW pipes are widely used in urban water supply, gas transmission, pressure vessels, and other fields.
The production process is equipped with online nondestructive testing (NDT) equipment, ensuring quality stability by controlling parameters such as welding temperature and extrusion pressure.
Specifications
Pipe Type: SSAW Pipe,Spirally Submerged Arc Welding Pipe
Application: Used for oil/gas/water Transmission,Engineering/Offshore/Onshore projects..etc
Specification: Outer diameter:219mm-3500mm
Wall thickness: 5mm-26mm
LENGTH: 5.8/6/11.8/12/18/32meters
Standard & Grade: ASTM A53:Gr.A, Gr.B;API5L:Gr.A,Gr.B,X42,X46,X52,X56,X60,X65 PSL1 andPSL2;ASTM A252
End: Square Ends/Plain Ends (straight cut, saw cut, torch cut),Beveled/Threaded Ends
Surface: Black Painting/Oil Painting/Anti-Rust oil/Anti-Corrosive Coating
Packing: Bundled,Plastic Caps Plugged,Waterproof Paper/Bag Wrapped
SSAW Steel Pipe Classification
Chemical Analysis and Mechanical Properties
Production Process
Plate Preparation: High-quality carbon steel plates are selected.
Forming: The plates are formed into a spiral shape using a spiral forming machine.
Welding: The spiral seam is welded using submerged arc welding (SAW).
Heat Treatment: Normalizing or quenching and tempering is performed.
Inspection: The pipes undergo rigorous testing, including ultrasonic and radiographic tests.
