【摘要】 介绍了５５ＳｉＭｎ２ＭｏＲＥ铸钢的化学成分、组织性能，分析了得到优良机械性能的内在因素。工业实验表明，５５ＳｉＭｎ２ＭｏＲＥ铸钢板锤的使用寿命为高锰钢板锤的１．５倍左右。更多还原

【Abstract】 The chemical compostion,microstructure and mechanical properties of the test cast steel are introduced in this paper.The inner influence factors on better mechanical properties are analyzed also.Industrial testing shows that the live of 55SiMn2MoRE cast steel hammer have been some 1 5 times longer than that of high manganese cast steel hammer.更多还原