The Manufacture of the Wear resistant Cast Steel with High Strength and Toughness for Pressing Bolts
A wear resistant cast steel with high strength and toughness for pressing bolts have been investigated by adding trace elements in present work The results show that ultimate tensile strength (UTS) and unnotched impact toughness of the wear resistant cast steel with high strength and toughness could achieve 1 850 MPa and 146 J/cm 2 respectively,while the hardness of matrix was kept at HRC 51.6 These properties could meet the demand for a large sized oil press perfectly Compared with the original carburizing steel for pressing bolts,the service life of the wear resistant cast steel was increased by more than 2 times The ratio of material utilization was increased by 132% Production cost were reduced obviously