Product Description
(1) quality carbon structural steel grade is 20MnG, 25MnG, 20G. (2) alloy steel, steel grade 15MoG 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG 12Cr3MoVSiTiB, etc. (3) is used 1Cr18Ni9 rust heat-resistant steels, except 1Cr18Ni11Nb boiler tube chemical composition and mechanical properties, to chase for hydrostatic test, flaring, crushed test. Steel pipe with heat delivery status. In addition, on the microstructure and grain steel decarburization layer, and also have certain requirements.