近年来,我国研究出的多种新型模具钢在生产上都得到了一定的使用。为了便于正确选用,发挥更好效果,我们对几种新模具钢的性能进行了对比分析和使用研究。通过比较和分析,可得出下列几点看法:1.几种新型热模具钢的性能各有优缺点。GR 钢的热稳定性、高温强度及抗冷热疲劳的性能较好;HM—1钢的高温冲击韧性,是热模具对比钢中 In recent years, our country developed a variety of new die steel in the production have been a certain amount of use. In order to facilitate the correct selection and play a better effect, we conducted a comparative analysis of the performance of several new die steel and the use of research. Through comparison and analysis, we can draw the following points: 1. Several new hot die steel have their own advantages and disadvantages. GR steel thermal stability, high temperature strength and resistance to hot and cold fatigue better performance; HM-1 steel high temperature impact toughness, hot die steel is compared