Seamless steel pipe for structure is mainly used for general structure and mechanical structure. Its representative materials: carbon steel, 20 and 45 steel; Alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35crmo, 42CrMo, etc.
Seamless steel pipe for conveying fluid is mainly used for conveying fluid pipeline on engineering and large equipment. The representative materials are 20, Q345, etc.
Seamless steel pipe for low and medium pressure boiler is a high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe for manufacturing superheated steam pipe, boiling water pipe of low and medium pressure boiler and superheated steam pipe, large smoke pipe, small smoke pipe and arch brick pipe for locomotive boiler. The representative materials are 10 and 20 steel.
Seamless steel pipe for high-pressure boiler is a high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipe used to manufacture the heating surface of water tube boiler with high pressure and above. The representative materials are 20g, 12Cr1MoVG, 15CrMoG, etc.
Seamless steel pipe for high-pressure chemical fertilizer equipment is a high-quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipelines with working temperature of - 40 ~ 400 ℃ and working pressure of 10 ~ 30mA. The representative materials are 20, 16Mn, 12CrMo, 12cr2mo, etc.
Seamless steel pipes for petroleum cracking are mainly used in boilers, heat exchangers and fluid transmission pipelines in petroleum smelters. The representative materials are 20, 12CrMo, 1Cr5Mo, 1cr19ni11nb, etc.