1.production technology: hot-rolled welded, SAW, SSAW
2.Executive standards: GB/T9711, SY/T5037, ASTM A106/A53, API 5L /5CT
3.Specification range:OD: 219-2220mm, WT:6-18mm
4: Materials: Q235B,Q345B, L245, GrB, X42-70 etc
5: Testing: Eddy current/ Hydrostatic/Ultrasonic/ Intergranular Corrosion etc.
6: Application
Spiral steel pipe are widely used for water, oil and gas transfer, ship-building, underground tunnel etc.