锰对HT250铸铁组织和性能的影响

Effect of Mn Content on the Microstructure and Properties of Cast Iron

ＨＴ２５０是灰铸铁中一种承受大应力的珠光体铸铁。生产实践和试验研究发现当锰含量在０．９％～１．３５％范围内时，ＨＴ２５０可获得最佳的组织和性能。

Grey iron HT250, is one of the pearlite cast iron used under high stress,The study shows thatHT250 has better microstructure and mechanical properties when Mn content reaches 0.9%～1. 35%.