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API 5L Spiral Steel Pipe

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Spiral steel pipes are made by steel coil, extrusion forming under the normal temperature, then taken the technology of double wire and double-faced submerged-arc welded.

Product Description

Spiral steel pipes are made by steel coil, extrusion forming under the normal temperature, then taken the technology of double wire and double-faced submerged-arc welded.

During molding process of spiral welded steel pipe, steel plate has uniform deformation and light residual stress, thus the surface has no scratches. Spiral steel pipe has more flexible thicknesses and diameters, especially in making high-grade thick pipes with small or medium aperture, these techniques has incomparable advantages in satisfying your needs.


API 5L PSL1 spiral steel pipe certificate ISO9001-2008.API5L


PACKAGE details: in bundles case packing or bundle pack. Hexagonal bundles of max, two tags on each bundle, wrap in waterproof paper , PVC sleeve sackcloth with several steel strips.

Test method:

1.chemical component analysis

2.Mechanical properties of pipe body, yield strength, mechanical properties of welding seam, bending test and metallographic.

3.Other test, hydrostatic test, x ray test, online offline ultrasonic test, flatting test, bending test, straightening and etc.


The type of PipeSpiral Welded Steel Pipe
MaterialsQ235A, Q235B, 10#, 20#, Q345(16Mn), L245(B), L290(X42), L320(X46), L360(X52), L390X56), L415(X60), L450(X65), L485(X70), L555(X80), L290NB/MB(X42N/M), L360NB/MB(X52N/M), L390NB/MB(X56N/M), 415NB/MB(X60N/M), L450MB(X65), L485MB(X70), L555MB(X80)
Production StandardAPI
Wall Thickness6mm-26mm
Packing detailPlywood cases
MarkingAccording to the Clients’ requirement
Length5.8M,6M,11.8M,12M-18M, 20M-23M or as customers requirements
Outside diameter219mm-3000mm(8--108inch)
ApplicationSpiral steel pipe is mainly used in public waterworks, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction etc.For liquid transportation, For gas transmission, For structure: piling, etc.