Second-hand φ813×20mm JCOE pipe line
Second-hand 1020x12mm 3LPE coating line
Second-hand 820x12mm Spiral pipe machine with beveler and hydro tester
Second-hand 1620×18mm Spiral pipe machine with Beveler and Hydro tester
Second-hand 3620x24mm Spiral welded pipe machine
Second-hand 200x200x16mm DFT tube machine
Second hand 2420x20mm Spiral welded pipe machine
Second hand 1220x12mm Spiral welded pipe machine
Second-hand 1820x16mm Spiral pipe machine
Second-hand 1220x16mm Spiral welded pipe machine
Second-hand 2540x25.4mm Spiral pipe machine
Second hand 1620x18mm spiral pipe machine
Second-hand 355×16mm high frequency pipe welding machine
Second-hand 1300×2.5mm slitting machine
Second-hand 2000×16 mm cut to length machine
Second-hand 750 4hi cold rolling mill
Second-hand φ813×20mm JCOE pipe line
Second-hand 1020x12mm 3LPE coating line
Second-hand 820x12mm Spiral pipe machine with beveler and hydro tester
Second-hand 1620×18mm Spiral pipe machine with Beveler and Hydro tester
Second-hand 3620x24mm Spiral welded pipe machine
Second-hand 200x200x16mm DFT tube machine
Second hand 2420x20mm Spiral welded pipe machine
Second hand 1220x12mm Spiral welded pipe machine
Second-hand 1820x16mm Spiral pipe machine
Second-hand 1220x16mm Spiral welded pipe machine
Second-hand 2540x25.4mm Spiral pipe machine
Second hand 1620x18mm spiral pipe machine
Second-hand 355×16mm high frequency pipe welding machine
Second-hand 1300×2.5mm slitting machine
Second-hand 2000×16 mm cut to length machine
Second-hand 750 4hi cold rolling mill
What is spiral welded pipe?
2024-12-02
Spiral welded pipe: the steel strip is rolled into a pipe blank according to a certain Angle of the helix (called forming Angle), and then the pipe seam is welded together to make it, which can use a narrower strip to produce a large diameter steel pipe, and can also use a steel strip with the same bandwidth to produce a different pipe diameter steel pipe. The specification is expressed by the outer diameter * wall thickness, and the welded pipe should ensure that the water pressure test, the tensile strength of the weld and the cold bending performance should meet the requirements. It is mainly used in oil and gas transmission pipelines, water conservancy projects and municipal water supply pipelines and pipe pile projects.
Category: Single side welding and double sides welding
Standard:
National standard: GB/T9711-2011
Ministry of Industry standard: SY/T5037-2000
American standard: API-5L
Related News
Precautions when using spiral pipe welding machine
When using a spiral pipe welding machine, operators need to pay attention to several aspects to ensure the normal operation of the equipment and production safety
The development direction of spiral pipe welding machine
The development direction of spiral welding pipe machines is mainly reflected in technology upgrading, intelligence, environmental protection and energy saving, as well as market demand.
Do whatever you want, one shot to the end!
Do whatever you want, one shot to the end!
Precautions when using spiral pipe welding machine
When using a spiral pipe welding machine, operators need to pay attention to several aspects to ensure the normal operation of the equipment and production safety
The development direction of spiral pipe welding machine
The development direction of spiral welding pipe machines is mainly reflected in technology upgrading, intelligence, environmental protection and energy saving, as well as market demand.
Do whatever you want, one shot to the end!
Do whatever you want, one shot to the end!