ASTM 304 Stainless steel round bar .we professionally machining and prroduce forged heavy ... single piece between 50kg and 5t3,height within 2000mmsteel bar forging1,dia above 90mm2,length within 5mOther forgings that ... 45#,46#,etc.according to customers' different requirements.6,main material are 5CrMnMo,40Cr,42CrMo,20Cr2Ni4,5CrNiMo,15CrNiMo,20CrNiMo ... heat treatment. ASTM 304 Stainless steel round bar