Standard for seamless pipes​

Standard for seamless pipes

1. Structural seamless pipes are seamless pipes used for general and mechanical structures.
2.Seamless pipe for fluid transportation is a general seamless pipe used to transport water, oil, gas and other fluids.
3.Seamless tubes for low and medium pressure boilers are high-quality carbon used for manufacturing various structures of low and medium pressure boiler superheated steam tubes, boiling water tubes and excess steam tubes for locomotive boilers, large smoke pipes, small smoke pipes and arch brick pipes. Structural steel hot rolled and cold drawn (rolled) seamless pipes.
4. High-pressure boiler seamless pipe is a high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless pipe used for the heating surface of water tube boilers with high pressure and above.
5. High-pressure seamless pipe for fertilizer equipment is a high-quality carbon structural steel and alloy steel seamless pipe suitable for chemical equipment and pipelines with an operating temperature of -40 ~ 400 ° C and an operating pressure of 10 ~ 30Ma.
6.Seamless pipes for petroleum cracking are seamless pipes suitable for furnace tubes, heat exchangers and pipes of petroleum refineries.
7. Geological drilling steel pipes are steel pipes used by the geological department for core drilling. They can be divided into drill pipes, drill collars, core pipes, casing pipes and sedimentation pipes according to their uses.
8.Diamond core drilling seamless pipe is a seamless pipe used for diamond core drilling of drill pipe, core rod and casing.
9. Petroleum drilling pipe is a seamless pipe used for internal or external thickening of oil drilling.
10.Carbon steel seamless pipe