ASTM A500:for cold-formed welded and seamless carbon steel structural tubing in round, square and rectangular shapes

ASTM A519 for seamless carbon and alloy steel mechanical tubing

EN 10210 is suitable for seamless structural steel pipes (especially for mechanical steel tubing).

DIN 2391 is well suited for seamless precision mechanical steel pipes.

ASTM A53 is a standard especially applicable for black and hot-dipped, zinc-coated, welded and seamless mechanical steel pipes.