51 steel pipe network to provide: thick-walled seamless steel pipe The knowledge of thick-walled seamless steel pipe production manufacturing process can be divided into cold drawing, cold rolling, hot rolling, thermal expansion of the four basic ways, the material of the steel pipe is 10#, 20#, 35# and 45# are called normal steel pipes, and 16Mn is called low-alloy steel pipe between common steel pipe and alloy steel pipe. The material of steel pipe is 27SiMn, 12Cr1MoV, 10CrMo910, 15CrMo, 35CrMo and stainless steel pipe are collectively referred to as alloy steel pipe. Divided into structural seamless steel tubes according to the purpose; seamless steel tubes for transportation; seamless steel tubes for boilers; high-pressure seamless steel tubes for boilers; high-pressure seamless steel tubes for fertilizer equipment; seamless steel tubes for geological bricks exploration; Seamless steel pipe; seamless steel pipe for oil cracking; seamless steel pipe for shipbuilding; cold-drawn cold-rolled precision seamless steel pipe;
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Seamless steel pipe is represented by the method of outer diameter, wall thickness, thick-walled seamless steel pipe is mainly used for mechanical processing, coal, hydraulic steel, and other purposes.
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