Oil and gas

The manufacturing process of STPT 370 seamless steel pipe usually includes hot rolling or cold rolling. This kind of steel pipe has high strength, high pressure resistance and good corrosion resistance, so it is widely used in fields such as petroleum, chemical industry, electric power and construction.

One of the most common methods for manufacturing elbows is using hot mandrel bending from straight steel pipes.

ASTM A822 is a standard specification for seamless cold-drawn carbon steel pipes, which are mainly used in hydraulic systems and other similar applications, where the forming operation requires small radius bending and flaring.