Product Description: helical seam submerged-arc welding steel pipe/SSAW steel tube/spiral submerged welded pipe
Outside Diameter (Inch): From 1/2 to 5
Wall thickness (Inch): From SCH40 to XXS
Length: From 4m to 12m in accordance with customers' requirements
• API Spec 5L Line pipeand steel pipe standard;
• BG/T 9711.1-1997 Delivery of petroleum and natrual gasindustrial transportation steel pipe Technical conditions Part 1 Grade-A Steel Pipe;
• GB/T 9711.2-1999 Delivery of petroleum and natrual gas industrial transportation steel pipe Technical conditions Part 1 Grade-B Steel Pipe;
• SY/T5037-2000 Spiral submerged are welding steel pipe for low-pressure fluiddelivery pipe;
Oiled marking:
- Steel after passing wrer oiled to prevent corrosion,and according to user requirements for making.
Leveling Milling: - The flat steel anvil machine so that the origal curl,and then thouth the edge milling machine for two-sided steel milling,so as to meet the requirements of the plate width,plate edge parallelism and groove shape.
Shear molding: - The steel plate production line along the outer edge of the spiral curl into a tube.
Butt cut: - Double-sided submerged arc welding using advanced technology to pre-welding,internal welding,outside wilding.The welded steel pipe using a plasma-foot cut to specification length.
