... .WT 0.89-24mm 3.Dup Astm A790 Duplex Seamless Stainless Steel Tube/Pipe/Pipes UNS 31803/S32750 1) Grade: TP304/ ... ASTM A789, ASTM A790, S31803, SAF2205, SAF2507 NameStainless Steel Seamless Pipe/TubeAvailable SizeO.D.: 6mm – 630mm / DN 6 – 600 / NPS 1/8 ... , IQNETClassification Society ApprovalsBV, DNV, LR,GL,ABS, NK, KR, CCS. Stainless steel tube: Features:STANDARDS: AISI,ASTM,DIN,JIS,GB,GOST,ENGRADE ...