Tubes are produced with outside dimension from 15 to 150 mm and wall thickness from 1.0 to 5.0 mm.Tubes are produced from steel grades St2sp, St2ps, St2kp, St4sp, St4ps, St4kp according GOST 380-94; from steel grades 08kp, 10, 20 according GOST 1050-88.Tubes are produced without heat treatment. Tubes cut length from 4 to 12 m. Non-destructive testing of weld seam quality.Technical requirements according to GOST 13663-86.
GOST 10704-91 Electrically welded steel line-weld tubes |