Forming Process of Seamless Steel Pipe

Forming process of seamless steel pipe is complex, first make molten steel in a molten state through an annular slit backlog out, and then stretching, and finally forming. So that no welding seams.

Seamless steel pipe is circular with hollow cross-section, no seams around, spiral steel pipe rectangular steel. Seamless steel is made of ingot or solid tube through perforating, and then hot-rolled, cold-rolled. Seamless steel pipe having a hollow cross-section, a large number of steel pipes are used for transporting fluids. Compared to other steel and solid steel bar, in the case of the same torsional strength in bending, steel pipes are lighter, it is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames.