... , AISI 1035, AISI 1045, GrD( Q235), Gr50 ( Q 345)Alloy Steel: AISI 1053, AISI A387Cr.12, 20CrMo, AISI 4137, AISI 4140 ... , AISI 4340, AISI 431, 20 CrMnMoStainless steel: ASTM 304, ASTM 304L, ASTM 316, ASTM 316LAny other material ... contact me. We will try our best to offer you our best service. If it is possible, welcome to our factory. forging steel round bar