Introduction: Spiral steel pipe is made of strip steel coil as raw material, extruded at room temperature, and welded by automatic double-wire double-sided submerged arc welding process to form a spiral seam steel pipe.

Outer diameter: 219mm-4020mm Wall thickness: 4.5-28mm

Material: Q235A, Q235B, Q345 (16Mn). L245(B). L290 (X42). L320 (X46). L360(X52).L390(X56). L415(X60). L450(X65). L485(X70). L55(X80). L290NB/MB (X42N/M).L360NB/MB ( X52N/M). L390NB/MB(X56N/M). L415NB/MB(X60N/M). L450MB(X65).L485MB(X70). L555MB(X80).

Standards: SY/T5037-2023, GB/T3091-2015, GB/T9711-2023, API5L (PSL1, PSL2)

Application: Spiral steel pipes, one of the 20 key products developed in China, are mainly used in water supply projects, petrochemical industry, chemical industry, power industry, agricultural irrigation, and urban construction.

Transport liquids: water supply, drainage, oil transportation.

Transport gas: coal gas, steam, liquefied petroleum gas, natural gas.

Structural use: piling pipes, bridges, docks, roads, building structure pipes, etc.