Material grade: SS304, SS304L, 304H, 310S, 316, 316L,316Ti, 321, 321H, UNS31803, 347H,2205,904L. O.D:6-508mm,W.T:1-25mm,Length:4-13m.Nps:1/2\" to 20\",Sch5s to Schxxs.No-standard dimension can be negotiated. Executive standard:ASTM A312,ASTM A213,ASTM A269,ASTM A790,GB/T14976-2002,DIN2462,JIS G3463 etc.