What is Smls pipe?

Definition
Smls pipe is a hollow section with no seams around the long strip of steel.

Application
Smls pipe is used in fluid transportation, boiler plant, engineering, machinery processing plant.

Classfication
Smls pipe according to the production method can be divided into hot-rolled tube, cold-rolled tube, cold-drawn tube, extrusion pipe.
According to the shape of a round tube, shaped tube of the points. Shaped tube in addition to square tube and rectangular tube, there are elliptical tube, semi-circular tube, triangular tube, hexagonal tube, convex-shaped tube, plum-shaped tube.
According to the different materials, divided into ordinary carbon structural tube, low-alloy structure tube, high-quality carbon structural tube, alloy structure tube, stainless steel and so on.
According to the special purpose points, a boiler tube, geological tube, oil pipe and so on.

Manufacturing process flow

Tubing - Inspection - Peeling - Inspection - Heating - Perforation - Pickling - Grinding - Lubrication drying - Welding head - Cold drawing - Solution treatment - Pickling - Pickling passivation - Inspection - Cold rolling - Oil removal - cutting head - Air drying - Internal polishing - External polishing - Inspection - Logo - Finished packaging