... Size:90mm-800mm Good quality,good price. Forged steel round barSteel grade:Carbon steel:Chinese Standard:20#,25#,35#,45#,50#,60 ... Standard:CK15,C.22,C45,CK45,C60,CK60;C45E;Alloy Steel:Chinese Standad:16Mn,20Mn,30Mn2,30Mn5,40Cr,Q345D,Q345E,Q390 ... ,20MnCrS5,21CrMoV511,56NiCrMoV7,18NiCrMo5,30CrNiMo8,34NiCrMo16,41CrAlNi7,34CrAlNi7,B7,B16,F11,F12,F22,F5,F9,51Cr4.Tool Steel:1.2714,H13,H11 ...