Large
(super) duplex stainless steel pipe
(super) duplex stainless steel tube is mainly used in water environment, petrochemical industry, fertilizer industry, oil refining industry, oil and gas industry, light industry and food industry, pulp and paper industry, energy and environmental protection.
Production standard: GB/T 21832 austenitic - iron grain size duplex stainless steel welded tubes of GB/T 21833 austenitic - iron grain size dual phase steel stainless steel seamless steel tube ASTM A789 (ASME SA789) general purpose seamless and welded ferritic/austenitic stainless steel pipe, ASTM A790 (ASME SA790) seamless and welded ferritic/austenitic stainless steel pipe nominal ASTM A928 plus electric welding ferritic/austenitic filler
Main brands: UNS S32001, S31500 S32304, S31803 S32205, S32760, S32750