Seamless steel tube is a kind of hollow section, no joints around the strip of steel. A pipe used extensively for conveying fluids, such as oil, natural gas, gas, water and some solid materials.
Partial classification of seamless steel tube:
1. Seamless steel pipe for structure is used for general structure and mechanical structure of seamless steel tube.
2. Seamless steel pipe for fluid transportation is a general seamless steel tube used for transporting water, oil, gas and other fluids.
3. Seamless steel pipe for low and medium pressure boilers is a high-quality carbon structural steel hot rolled and cold drawn (rolled) seamless steel pipe used for manufacturing superheated steam pipe, boiling water pipe and superheated steam pipe, large smoke pipe, small smoke pipe and arch brick pipe of low and medium pressure boiler of various structures.
4. Seamless steel tubes for high pressure boilers are high quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel tubes used for the heating surface of water tube boilers with high pressure and above.
5. High pressure seamless steel tubes for fertilizer equipment are high quality carbon structural steel and alloy steel seamless steel tubes suitable for chemical equipment and pipelines with working temperature of -40~400℃ and working pressure of 10~30Ma.
6. Seamless steel tubes for petroleum cracking are seamless steel tubes for furnace tubes, heat exchangers and pipelines in petroleum refineries.
7. Steel pipes for geological drilling are steel pipes used for core drilling by geological departments, which can be divided into drill pipe, drill collar, core pipe, casing and settling pipe, etc.
8. Seamless steel pipe for diamond core drilling refers to the seamless steel tube used for drill pipe, core rod and casing for diamond core drilling.
9. Carbon steel seamless steel tube for ships is a carbon steel seamless steel pipe for the manufacture of ship I class pressure pipe, II class pressure pipe, boiler and superheater. The working temperature of carbon steel seamless steel pipe wall shall not exceed 450℃, and the working temperature of alloy steel seamless steel pipe wall shall not exceed 450℃.
Post time: Dec-14-2022