DIAMETER:60--200MM,LENGTH:3-6M,HARDNESS:HRC45-60 TYPE B: DIAMETER:60-150MM,LENGTH:3-6M,HARDNESS: HRC45-60 Our ... bar. The grinding steel bar series have A type and B type. The grinding steel bar series are mainly used for ... : 0.17-0.37, Mn: 0.6-1.2, S: <0.035, P: <0.035, Cr: <0.04B type: diameter: 60-200MM, length ... .17-0.37, Mn: 0.7-0.8, S: 0.035MAX, P: 0.035,MAX Cr: 0.28-0.60 Grinding Steel ...