Spiral SAW (SSAW) Steel Pipes

Achieved thru Welding Steel Coils in a Spiral or Helix Pattern using an electric arc submerged under granular flux

High-strength spiral welded steel pipes manufactured using Spiral Submerged Arc Welding (SSAW) technology for water transmission, structural, and industrial pipeline applications.

SSAW steel pipes are designed for large diameter pipeline systems requiring durability, efficiency, and cost-effective long-distance performance.

Overview

Spiral SAW Steel Pipes, also known as SSAW pipes, are manufactured by continuously forming hot-rolled steel coils into a spiral shape and welding them using the Submerged Arc Welding process.

This production method allows the manufacture of large diameter pipes with strong structural performance and efficient material utilization.

Key Specifications

Typical Standard and Specifications

ASTM A252, API 5L B, ASTM A139, EN10219, AWWA C200

Mechanical Properties

Standard specification for straight seam or spiral weld piling pipe

OD Tolerance: +/- 1%
Wall Tolerance: 12.5%

Grade	Minimum Yield	Minimum Tensile
Grade 1	30,000 PSI	50,000 PSI
Grade 2	35,000 PSI	60,000 PSI
Grade 3	45,000 PSI	66,000 PSI

The steel shall contain no more than 0.05% phosphorus.

Each of the Standard / Specification matches a particular application; ensure to consult with designer which suits the project best.

Available Sizes (Chart Summary)

Parameter	Range
Outer Diameter (OD)	24" – 120" / 609.6mm – 3048mm
Wall Thickness	1/8" to 1" / 3.2mm – 25mm

Availability of sizes is subject to final confirmation.

Typical Material Grade for SSAW / LSAW

EN 10025	S235, S275, S355, S390, S420, S460
GB/T	Q235, Q345, Q390, Q460
API	X42, X46, X52, X56, X60, X65, X70, X80
ASTM A572	Gr. 43, Gr. 50, Gr. 60
Low Corrosion Steel	ASTM A690 Mariner Steel Grade / 345 / 390 / 430