... polished,annealing. stainless steel pipe 309 1.Sizes:Diameter:6-610mm Wall Thickness:0.5-60mmO.D:3/8",1 ... 2",2 1/2",3",3 1/2",4",5",6",8",10",12",14",16",18"W.T:Schedule: ... 120S, 160/160S,acc. to ANSI B36.19/36.102. Surface finish: pickling, annealing, manual polish and mechanical polish;3. ... for each piece then packed in seaworthy --wooden cases or as request. High quality 309 stainless steel pipe