API 5L Spiral Steel Pipe

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.