Steel pipe material categories

Pipe by pipe material (ie steel) can be divided into: Carbon tubes and alloy pipe, stainless steel tubes.
Carbon tube can be divided into ordinary carbon steel and quality carbon structural tube.

Alloy tube can be divided into: low alloy tube, alloy tube, high alloy pipe, high strength pipe. Bearing tube, acid-resistant stainless steel tube, precision alloy (such as Kovar) pipe and high-temperature alloy tubes.