What is stainless steel pipe for mechanical structure?

Stainless steel pipe for mechanical structure is a steel pipe suitable for general structure or mechanical structure,

Not for fluid piping such as pressure piping,

The main national standards for stainless steel pipe for mechanical structure are,

GB/T 12770-2012 Stainless Steel Welded Steel Pipe for Mechanical Structure,

and GB/T 14975-2012 "Stainless Steel Seamless Steel Pipe for Structural Use".