The Function Of Square Steel Pipe

Square steel pipe is a hollow long steel pipe that is widely used as building structural members and mechanical parts. It is widely used in various building structures and engineering pipelines, mostly used for conveying fluids such as square tubes, rectangular tubes, splined pins, tie rods, bolts, nuts, etc. Structural seamless square rectangular tubes are seamless square rectangular tubes suitable for general structures and mechanical structures.

Classification method of seamless steel pipe:

1. Classification by cross-section shape (1) Simple cross-section steel (2) Complex cross-section steel (3) Corrugated cross-section steel (4) Special-shaped cross-section steel;

2. Classification by production method (1) Hot-rolled (extruded) seamless steel pipes - Hot-rolled seamless steel pipes are divided into general steel pipes, low and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, and seamless pipes for geological drilling. Steel pipes and some rare precious metal alloy round steels. (2) Cold drawn (rolled) seamless steel pipes - cold drawn or cold rolled precision seamless steel pipes;

3. Classification by wall thickness (1) Thin-walled precision bright tubes (2) Thick-walled precision bright tubes - stainless steel welded hollow spherical flat steel wires and heat-treated steel bars for various purposes made from ordinary carbon structural steel plates with a thickness of 20-100mm. (3) The chemical composition and performance indicators of special-purpose seamless square and rectangular tubes are appropriately improved based on high-quality carbon structural steel plates.