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1.Accurate size
2.Bear a large pressure
3.Flexible operation, easy to change the variety
4.Widely used in water, electricity and chemical industry
5.Because of continuous bending, the length to be arbitrarily set
6.Easy to change the size, suitable for small quantities
7.More varieties of the production spiral
8.The size of the spiral tube high precision, strength also strong
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Spiral welded steel pipe is one type of welded tubes, cold formed from hot rolled coil and submerged arc welded in a single and continuous process.
GK spiral welding process is efficient, flexible, and cost efficient based on our advanced equipment. Spiral welded tube has been widely applied for the transmission of petroleum gas, low-pressure fluid, be also used as structural member and use.
Spiral welding process is totally different with straight welding. A continuous full penetration metal inert gas weld overlay is used to rebuild or repair damage from wear, erosion, corrosion or cracking, or to enlarge the dimensions of a component on a mating part during spiral welding process. Usually, large diameter welded steel tube is made through such welding steps.
The common materials for spiral welded steel tube are as below:
Q235A，Q235B、10#、20#、Q345（16Mn）、L245(B)、L290（X42）、L320（X46）、L360（X52）、L390(X56)、L415(X60)、 L450(X65)、L485(X70)、L555(X80)、L290NB/MB（X42N/M）、L360NB/MB（X52N/M）、L390NB/MB(X56N/M)、L415NB/MB(X60N/M)、L450MB(X65)、L485MB(X70)、L555MB(X80)。
