Oil and gas

ASTM A139 is a standard specification for electric resistance welded straight and spiral seam steel pipe manufactured using the arc welding process.

The ASTM A513 specification covers electric-resistance-welded carbon steel tubing for use as mechanical and ornamental tubing.

The hot expanding steel pipe is hot expanded seamless pipes, which is relatively low density but the contraction of the strong steel pipe (seamless pipe) can be referred to as thermal expansion.

SS330 and SS490 are two types of carbon structural steel in Japanese steel standards, which are usually used to manufacture pipes and structural members. "Long seam submerged arc welded carbon pipe" refers to carbon steel pipes produced using the straight seam submerged arc welding process.