【中文版：】为满足石油炼化装置对石油裂化无缝钢管的性能要求,开发了1Cr5Mo合金管。以正火和回火温度、正火和回火保温时间为参数,采用优化试验方法,获得1Cr5Mo合金管优化的热处理工艺为:正火温度920～960℃、正火保温时间60min;回火温度720～780℃、回火保温时间60min。按上述优化工艺获得1Cr5Mo合金管的最佳力学性能为:抗拉极限615MPa、屈服强度505MPa、伸长率23%、冲击功280J、硬度≤180HB;组织晶粒度为8.5级,各项性能均满足标准和用户的使用要求。

【English version】To meet the petroleum refining equipment to petroleum cracking seamless steel tube, the performance requirements of the development Cr5Mo alloy tube 1. Going to fire and tempering temperature, is fire and tempering holding time for parameters, adopting the optimization experiment method, get the alloy steel tube heat treatment process of optimization for: is the fire of 920 ~ 960 ℃, the temperature is fire holding time 60 min; Tempering temperature of 720 ~ 780 ℃, holding time tempering 60 min. According to the above optimization of process get 1 Cr5Mo alloy pipe of the best mechanical properties for: tensile limit of 615 MPa, yield strength 505 MPa, elongation rate 23%, impact energy 280 J, hardness HB; more than 180 Organization for 8.5 magnitude of grain, and various performance will meet the standards and the use of user requirements.

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