Steel Pipe Manufacturing Process

Steel pipe such as the Carbon Steel Tee manufacturing process: 

(1) Forming (welding)

Forming is an indispensable process for the manufacturing process of all pipe fittings.

(2) Heat treatment

Through the heat treatment steps of heating, heat preservation and cooling, the work hardening, residual stress, metal deformation defects, etc. generated during the forming process are eliminated, and the metal structure and properties of the formed pipe are changed, and the state before the deformation process or the performance can be restored. Improve and improve.

(3) Surface treatment

The surface treatment of the pipe such as the Stainless Steel Elbow is usually carried out by sand blasting, shot blasting, sanding, pickling, etc. to remove rust, scratches, etc. on the surface of the product to achieve a smooth surface.

(4) Cutting processing

The cutting process is a process of completing the welding end portion, the structural size, and the shape tolerance of the pipe such as the Weld Neck Flange.

(5) Non-destructive testing

Non-destructive testing is an important process for testing defects in materials and fittings.

(6) Surface protection

For the surface protection of carbon steel and alloy steel pipe parts, the method of painting is usually adopted, and the method of passivation after pickling is applied to stainless steel.

(7) logo

Marks are an integral part of the product and are the basis for achieving traceability requirements.