Undersea pipeline

ASTM A213 covers seamless ferritic and austenitic steel boiler, Boiler Tube, and heat-exchange tubes, designated Grades T5, TP304, etc. Grades containing the letter, H, in their designation, have requirements different from those of similar grades not containing the letter, H.

EN 10216-1 alloy steel seamless pipe is a seamless steel pipe that meets European standards and is mainly used in high temperature and high pressure industrial environments.

ASTM A213 T5 and T5b steel pipe is a seamless ferrite and austenite alloy steel pipe, mainly used in high temperature and high pressure working environment such as boilers, superheaters and heat exchangers.

ASTM A249 is a standard specification for welded austenitic stainless steel tubes for boilers, superheaters, heat exchangers, and condensers.