The use of seamless tube is extensive. General-purpose seamless tube by ordinary carbon structural steel and low alloy steel or alloy structural steel rolling, most production, mainly used for conveying fluid pipe or structural components.

There are three types of supply according to different USES:

A, according to the chemical composition and mechanical properties;

B, in mechanical performance;

C, water pressure test supply.

Press a and b steel pipe, such as for the pressure of liquid, also for water pressure test.

The special purpose seamless pipe has a boiler with seamless pipe, geological and seamless pipe and oil.