... polished,annealing. stainless steel pipe 309 1.Sizes:Diameter:6-610mm Wall Thickness:0.5-60mmO.D:3/8 ... 2",2",2 1/2",3",3 1/2",4",5",6",8",10",12",14",16",18"W.T: ... rolled,cold drawn,hot rolled.4. Chemical and Physical characteristic: durable, corrosion resistant and high-temperature resistant;5. Appilication:mainly ... packed in seaworthy --wooden cases or as request. High quality 309 stainless steel pipe