【中文版：】为知足石油炼扮装置对石油裂化不锈钢管的机能要求,开辟了 不锈管。以正火和回火温度、正火和回火保温时候为参数,采用优化试验方式,获得 不锈管优化的热处置工艺为:正火温度920～960℃、正火保温时候60min;回火温度720～780℃、回火保温时候60min。按上述优化工艺获得 不锈管的佳力学机能为:抗拉极限615MPa、屈就强度505MPa、伸长率23%、冲击功280J、硬度≤180HB;组织晶粒度为8.5级,各项机能均知足尺度和用户的利用要求。

【Enlish version】To meet the petroleum refinin equipment to petroleum crackin seamless steel tube, the performance requirements of the development Cr5Mo alloy tube 1. oin to fire and temperin temperature, is fire and temperin holdin time for parameters, adoptin the optimization experiment method, et the alloy steel tube heat treatment process of optimization for: is the fire of 920 ~ 960 ℃, the temperature is fire holdin time 60 min; Temperin temperature of 720 ~ 780 ℃, holdin time temperin 60 min. Accordin to the above optimization of process et 1 Cr5Mo alloy pipe of the best mechanical properties for: tensile limit of 615 MPa, yield strenth 505 MPa, elonation rate 23%, impact enery 280 J, hardness HB; more than 180 Oranization for 8.5 manitude of rain, and various performance will meet the standards and the use of user requirements.

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