Basic technology of carbon steel pipe fitting tee forming

　　The basic technology of carbon steel pipe fitting tee forming is: firstly, a polygonal annular shell with polygonal cross-section or a polygonal fan-shaped shell with closed ends is welded. After the pressure medium is filled, the internal pressure is applied. Under the internal pressure of ASTM A234 Large-Caliber Carbon Steel Pipe Fitting Tee, the cross-section gradually changes from polygonal to circular, and finally becomes a circular annular shell. The advantages are mainly shown in the following aspects:

　　1. Carbon steel pipe fitting tee are suitable for pipeline systems in petroleum, natural gas, chemical, hydropower, construction and boiler industries.

　　2. No billet is needed as raw material, which can save the cost of pipe-making equipment and die, and the carbon steel pipe fitting tee with arbitrary large diameter and relatively thin wall can be obtained.

　　3. The blank is flat or developable surface, so the blanking is simple, the accuracy is easy to guarantee, and the assembly and welding are convenient.