一机部机电研究所与本溪钢铁公司第一炼钢厂、长春第一汽车制造厂协作共同研制成功了5Cr4W5Mo2V新型高热强性模具钢。十几年来,对该钢种进行了较系统的成分及性能的试验研究,经批量生产(300多吨)和汽车、轴承、轻工等部门较长时间的模具寿命考核,结果表明:该钢种成分设计合理,符合我国资源情况,冶炼工艺成熟,质量稳定,成材率高,生产成本低,并且有较好的锻造、热处理等工艺性能。新钢种热强性、热稳定性 A mechanical and electrical Institute of Benxi Iron and Steel Company and the first steel plant, Changchun No. 1 car factory jointly developed a successful 5Cr4W5Mo2V new high-strength hot-die steel. More than a decade, the steel was more systematic components and properties of the pilot study, after mass production (300 tons) and automotive, bearings, light industry and other departments longer mold life assessment, the results show that: the steel The components are designed reasonably and are in line with the situation of our country’s resources. The smelting process is mature, the quality is stable, the finished product rate is high, the production cost is low, and the process performance such as forging and heat treatment is better. The new steel hot and strong, thermal stability