- 材质:
- 20#
- 标准:
- GB3087
Implementation standards for seamless steel pipes (national standards)
【】Structural seamless pipes () are seamless steel pipes used for general structural mechanical structures.
【】Seamless steel pipe for fluid transportation () is a general seamless steel pipe used to transport fluids such as water, oil, gas, etc. (Seamless steel pipe for transporting fluids) is mainly used in pipelines for transporting fluids in engineering and large-scale equipment. The representative materials (grades) are, Q, etc.
【】Seamless steel pipe (B) for low and medium pressure boilers is a high-quality carbon structure used to manufacture superheated steam pipes and boiling water pipes for low and medium pressure boilers of various structures, as well as superheated steam pipes and arch brick pipes for locomotive boilers. Steel hot-rolled and cold-drawn (rolled) seamless steel pipes. B (seamless steel pipe for low and medium pressure boilers). Mainly used in pipelines for conveying low and medium pressure fluids in industrial boilers and domestic boilers. The representative material is steel.
【】Seamless steel pipes for high-pressure boilers (B) are high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipes used for the heating surfaces of water tube boilers with high pressures and above. B (seamless steel pipe for high-pressure boilers). It is mainly used for high temperature and high pressure resistant fluid transport headers and pipelines in power plants and nuclear power plant boilers. The representative materials are, rM, rM, etc.
【】High-pressure seamless steel pipe (B) for fertilizer equipment is a high-quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipelines with an operating temperature of ~°C and a working pressure of ~M. B (seamless steel pipe for high-pressure fertilizer equipment). Mainly used in fertilizer equipment to transport high temperature and high pressure fluid pipelines. Representative materials are, M, rM, rM, etc.
【】Seamless steel pipe for petroleum cracking (B) is a seamless steel pipe suitable for furnace tubes, heat exchangers and pipelines in petroleum refineries. B (seamless steel pipe for petroleum cracking). Mainly used in boilers, heat exchangers and pipelines for transporting fluids in petroleum refineries. Its representative materials are, rM, rM, etc.
Our company's main business: seamless steel pipes, spiral steel pipes, alloy steel pipes, anti-corrosion steel pipes, straight seam steel pipes