Overview of JIS 3457 SSAW steel pipe

JIS G 3457 SSAW (Spiral Submerged Arc Welded) steel pipes are manufactured in accordance with the Japanese Industrial Standards (JIS). These pipes are widely utilized in water transmission projects, structural frameworks, and industrial pipeline systems. Thanks to their high strength, excellent corrosion resistance, and cost-efficiency, they are especially suitable for long-distance water supply lines, bridge structures, and other large-scale infrastructure applications.

This guide provides a comprehensive overview of JIS G 3457 spiral welded steel pipes.

Union Steel Industry Co., Ltd is professional SSAW steel pipe manufacturer, for more details, please contact:sales@union-steels.com

JIS 3457 SSAW Steel Pipe vs Other Pipe Types

Manufacturing Process of JIS G 3457 SSAW Steel Pipes

The production of JIS G 3457 spiral welded pipes is carried out under a rigorous quality control system to meet the mechanical and chemical property requirements of the JIS standard. Below is an outline of the main steps involved:

1. Steel Coil Selection

Selected coils are made from high-quality carbon steel, compliant with JIS G 3457 requirements.

Common material grades include: GR B, X42, X52, X60, X70, and X80.

2. Spiral Forming

The steel strip is fed into a spiral forming machine, where it is continuously shaped into a helical tube.

The spiral seam structure contributes to improved pressure resistance and uniform stress distribution.

3. Submerged Arc Welding (SAW)

Double-sided submerged arc welding (DSAW) is performed to create robust, deep-penetration welds.

This welding method enhances the pipe’s mechanical strength and ensures long-term structural integrity.

4. Non-Destructive Testing (NDT)

Ultrasonic testing and X-ray inspection are used to detect any internal or surface defects.

Hydrostatic pressure testing verifies that the pipe can safely withstand the required internal pressure.

5. Coating & Anti-Corrosion Treatment

Depending on the end-use, pipes may receive coatings such as:

Fusion Bonded Epoxy (FBE)

Three-Layer Polyethylene (3LPE)

Cement mortar lining

These treatments provide enhanced corrosion protection and extend the service life of the pipes.

6. Final Inspection & Certification

Finished pipes undergo thorough checks for dimensional accuracy, mechanical performance, and coating quality.

All compliant pipes are stamped and certified according to JIS G 3457 standards.

FAQ: JIS 3457 SSAW Steel Pipe