General-purpose seamless steel pipes are rolled by ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, with the largest output, and are mainly used as pipelines or structural parts for conveying fluids.
Seamless pipe is formed from a cylindrical bar of steel.
The bar is heated to a high temperature and then a probe is inserted to create a hole through the cylinder.
The cylinder is then transferred to rollers which size the cylinder to the specified diameter and wall thickness.
Smls pipe is used for conveying fluid pipe, structure with seamless steel tubes, compared to the solid round steel, in the bending torsional strength phase at the same time, the weight is lighter, is a kind of economic cross section steel, widely used in the manufacturing of structural and mechanical parts, such as