Hebei Chongsheng Special Steel Pipe Co.,Ltd.

CANGZHOU, China

Quality standard:api 5l standard specification for seamless line pipe or seamless pipe lineastm a 53 standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamlessastm a519 seamless carbon and alloy steel mechanical tubing astm a106 seamless carbon steel pipes for oil pipeline and gas pipeline transportation gbt8162 seamless steel tubes for structural purposesjis g3441 alloy steel tubes for machine purposes jis g3444 carbon steel pipes for general structural purposes jis g3445 carbon steel tubes for machine structural purposes din 2391 seamless precision steel tubes en10305 steel tubes for precision applications. Technical delivery conditions. Seamless cold drawn tubesen 10297 hot rolled seamless steel tubes with an application in the mechanical and general engineeringen 10210:seamless structural steel pipes steel grade: api 5l: grade a, grade b, x42, x46, x52, x56, x60, x65, x70, x80astm a 53: grade a, grade b, grade c, type f, type eastm a519: 1010-1045, 4130-4142, 5135gbt8162: 10, 20, 35, 45, 16mn, 12c rmo, 15crmo, 12c rl movjis g3441: scm 415 tk, scm 418 tk, scm 420 tk, scm 430 tk, scm 435 tk, scm 440 tk jis g3444: stkm 11a, stkm 12, stkm 13, stkm 14, stkm 15, stkm 16, stkm 17, stkm 18stkm 19, stkm 20din 2391: st30si, st30a1, st35, st45, st52en10305: e235, e355 en 10297: e355k2, e470, e420j2, e590k2 en 10210: s235jrh; s275j0h, s275j2h; s355j0h, s355j2h; s275nh, s355nh; s275nlh, s355nlh