Pipe steel electrowelded

Description The main activity of our company is the production of profile, steel and round pipes on an electric welding mill from strips of our own production. The raw material for our products is rolled steel, which has passed factory quality control and fully complies with the requirements of GOST. The quality of the raw materials used is confirmed by the relevant certificates from the manufacturers. Production of electric-welded pipes Pipes made by electric welding have a diameter of 8 to 2450 mm and are capable of withstanding pressures up to 1.6 MPa. Cold-rolled (for pipes with walls of 0.4-2.5 mm) and hot-rolled (for thick-walled pipes) sheets are taken as raw materials for future pipes. Cold-rolled steel pipes have a better surface quality, with fewer defects, and the overall product is highly accurate. Large-diameter pipes have a spiral seam, the rest are straight-seam. Standard sizes of electric-welded pipes GOST 1070491 defines the assortments of steel electric-welded pipes. They are divided into groups: A - according to the strength of the products. B - according to the chemical composition of the alloys, C - according to the strength and chemical composition. D - there are no conditions for pipes of this group. The length of steel electric welded pipes is of two types. Random: - D (diameter) less than 30 mm - from 2 m, - D 30-70 mm - from 3 m, - D 70-152 mm - from 4 m, - D from 152 mm - from 5 m. electric-welded pipes - from 10 m with a diameter of 152 mm, from 4 m with a diameter of less than 70 mm. Measured: - D less than 70 mm - 5-9 m, - D 70-219 mm - 6-9 m, - D 219-426 mm - 10-12 m. Diameter over 426 mm occurs only for pipes of random length. By agreement with the factory, you can order an electric-welded steel pipe 6-12 m with a diameter of 70-219 mm.