What is the difference between structural seamless steel pipe and seamless stee

　　1: the standard requirements are different, and the eddy  test is required for fluid conveying.

　　2: the application scope is different. One is the structural support, Seamless Steel Fluid Pipe is the conveying fluid (such as oil and water).

　　3: the requirements of GB / t8163-2008 are higher, and 8162 can be substituted, GB / t8162-2008 (seamless structural steel pipe), which is mainly used for general structure and mechanical structure. Its representative materials : carbon steel 20 and 45; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35crmo, 42CrMo,etc. GB / t8163-2008 (seamless steel pipe for fluid transportation). It is mainly used for conveying fluid pipeline on engineering and large equipment. The representative materials are 20, Q345, etc.