How many types of thick-walled seamless steel pipes are there? Hot-rolled thick-walled seamless steel pipe, cold-rolled thick-walled seamless steel pipe, cold-drawn thick-walled seamless steel pipe, kneaded thick-walled seamless steel pipe, stainless steel seamless pipe for pipe jacking structure (GB/T14975-2002) is used for Seamless steel pipe with general structure and mechanical structure, widely used in hot-rolled (extruded, expanded) and cold-made stainless steel made of corrosion-resistant pipes and structural parts and parts of chemical, petroleum, textile, medical, food, machinery and other industries Pull (roll) seamless steel pipe.seamless steel pipe supplier
Stainless steel seamless pipe for fluid transportation (GB/T14976-2002) is a general seamless steel pipe for transporting water, oil, gas, etc., usually hot rolled (squeezed, expanded) and cold drawn (rolled) made of stainless steel. ) Seamless steel pipe. The profiled seamless steel pipe is a general term for seamless steel pipes of other cross-sectional shapes other than round pipes.
According to the different dimensions of the cross-section of the steel pipe, it can be divided into equal-wall thick-shaped seamless steel pipe (code D), unequal wall thickness profiled seamless steel pipe (code BD), and variable-diameter profiled seamless steel pipe (code BJ). Shaped seamless steel tubes are widely used in various structural parts, things and mechanical parts. Compared with the round pipe, the special-shaped pipe generally has a large moment of inertia and a section modulus, and has a large bending and torsion resistance, which can greatly reduce the structural component and save steel.
Commonly used thick-walled seamless steel tubes to meet the standard structure of seamless steel tubes (GB/T8162-2008) are seamless steel tubes for general structural and mechanical structures. The seamless steel pipe for fluid transportation (GB/T8163-2008) is a general seamless steel pipe for transporting fluids such as water, oil and gas.