... Seamless SS Steel Tube/Pipe UNS 31803/1.4539 1) Grade: TP304/TP304L/TP316L/TP321/201/202 ,SS904L,S32750,2205,Duplex ,Titanium,Titanium ... A789, ASTM A790, S31803, SAF2205, SAF2507 NameStainless Steel Seamless Pipe/TubeAvailable SizeO.D.: 6mm – 630mm / DN ... DAF,FCA(BY TRAIN)------------------------------------------------------------------------------------- Duplex Seamless SS Steel Tube/Pipe UNS 31803/1. ...