ASTM A213-Seamless ferritic and austenitic alloy-steel boiler, superheater and heat-exchanger tubes

ASTM A335-Seamless ferritic alloy-steel pipe for high-temperature service.

ASTM A519-Seamless carbon and alloy steel mechanical tubing.

ASTM A53-Pipe steel, black and hot-dipped, zinc-coated, welded seamless

ASTM A312-Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

BS1387-Screwed and socketed steel tubes and tubulars for plain end steel tubes suitable for welding or screwing to BS 21 pipe threads