以硅、锰为主要合金化元素，采用控制冷却技术，将铸件快速冷却至贝氏体中温转变区，终止喷射冷却，采用相应保温措施，利用铸件余热，创造类似等温淬火的外部条件，以完成贝氏体转变，其组织为贝氏体、马氏体复相组织。这种钢硬度高（ＨＲＣ＞５０）、韧性好（αｋ＞２０Ｊ／ｃｍ２），适生产衬板、锤头等耐磨铸件 With silicon and manganese as the main alloying elements, the controlled cooling technology, the rapid cooling of castings to bainite transformation temperature zone, the termination of jet cooling, the use of the corresponding insulation measures, the use of cast heat, to create a similar external conditions of austempering in order to complete Bainite transformation, the organization of bainite, martensite complex. This steel hardness (HRC> 50), good toughness (αk> 20J / cm2), suitable for production of lining, hammer and other wear-resistant castings