Marine engineering

S235JRH is a designation for a specific grade of steel used in the manufacture of spiral steel pipes.

ASTM A556 steel pipe is a seamless carbon steel boiler and superheater tube used for high temperature service, especially in boiler and superheater applications.

ASTM A213 T11 ferritic alloy steel seamless pipe is a seamless steel pipe used in boilers, superheaters and heat exchangers.

DIN 1629 structural seamless pipe is a seamless steel pipe produced in accordance with German industrial standards. It is mainly used to manufacture pipelines, containers, equipment, pipe fittings and steel structures.