Specification of Medium Steel Pipe SII SCH 40 SCH 80 SCH 160
Iron pipes, various types, among others,
ERW, ASTM A106, ASTM A53, ASTM A335, ASTM A312.
ASTM A106,
black seamleas (welded not allowed) Dead carbon steel pipes are provided for high temperature and high pressure services in three classes of seamless pipes with varying tensile strength
ASTM A335
The nominal (flat) seamless steel pipe specifications are intended for high-temperature service. twelve values answered in ASTM A335