... 2>Finishing:solution annealed treated 3> Surface: black, bright 321 hot rolled stainless steel round bar:1> Dia.: 8mm~500mm2> Length ... : 1~7 mtrs3> Finishing: solution annealed treated4> Delviery condition: Hot forged , hot rolled, cold drawn5> Surface: black, rough turning, smooth turning ... : ASTM, JIS, SUSFor more information, pls contact us freely. 321 Hot rolled steel round bar