Large
Main brands: TP304 / L/H, TP316 L/Ti, TP317 / L, TP321 / H, TP347H, TP310S, UNS S31803, S32205, S32750, S32760
Production standard: ASTM A312 nominal "seamless and welded austenitic stainless steel pipe,
ASTM A789 general purpose ferritic/austenitic stainless steel seamless and welded steel pipe
ASTM A213 "seamless iron element used in boiler, superheater, and the heat exchanger body and austenitic steel tube"
GB/T 14976-2002 "fluid conveying stainless steel seamless steel tube"
GB/T 12771-12771 "fluid conveying stainless steel welded steel pipe,
Classification society certification, CCS China classification society, GL, bureau veritas Germany Lloyd's register, BV, DNV det norske veritas, ABS American bureau of shipping and LR, Lloyd's register
Marine pipe