crusher machine hard wearing part :hammer ,backing board  grate board  ,High wearing resistance material , high manganese steel with metal Cr & Mo & Re  added ,main chemical composition as : C,1.1-1.2% Si=0.3—0.8%  Mn,12.5—14% S< 0.05% P, 0.04%  Cr,0.5—0.7%  Mo,0.5—0.7%  Re,0.2—0.25% ,

Casting weight  range can be from 5kg to 15000 kg ,size can reach 5000mm X2000mm x1000mm dimension tolerance  +/-1.5mm.