Seamless steel pipe is widely used. General use of seamless steel pipe from the ordinary carbon structural steel, low alloy structural steel or alloy structural steel rolling, the largest output, mainly used for conveying fluid pipe or structural parts.

1, according to the use of different sub-three supply:

A, by chemical composition and mechanical properties;

B, according to the mechanical performance supply;

C, according to the hydraulic test supply.

According to a, b class supply of steel pipe, such as for the use of liquid pressure, but also for water pressure test.

2, the special purpose of the seamless pipe with a seamless pipe, chemical power, geological seamless steel pipe and seamless use of oil and so on.