size:DIA 20-150mm(different DIA you can choose )

hardness:HRC 50-60( different HRC you can choose)

chemical elements C:0.45-0.65  Si:0.17-0.37  Mm:0.6-1.2  S:<=0.035  P:<=0.035  Cr:<=0.25 

products' speciality:Hing hardness  no breakage  good wear resiscance  even wearing

applied field:Mine ,cement plants, power stations, chemical industries