Electrically welded pipes round, manufactured according to the diameter: from 10 to 530 mm GOST 10705-80 from 478 to 1420 mm GOST 10706-76. In this way, total range of the outer diameter - by 10 to 1420 mm, wall thickness - from 1 to 32 mm. Range electrically welded round pipes GOST 10704-91. As a material for the manufacture of pipes used electrowelded steel grades: St2sp, St2ps, St2kp, St4sp, St4ps, St4kp (according to GOST 380-94) and 10ps, 20,…
????Read moreTypes of welded steel pipes
