【中文版：】為知足石油煉扮裝置對石油裂化不鏽鋼管的機能要求,開辟了 不鏽管。以正（zhèng）火和回火溫度、正火和回火（huǒ）保溫時候為（wéi）參數,采用優化試驗方式,獲得 不鏽管優化的熱處置工藝為:正火溫度（dù）920～960℃、正火保溫（wēn）時候（hòu）60min;回火溫度（dù）720～780℃、回火（huǒ）保溫時候60min。按上述優化工（gōng）藝獲得（dé） 不鏽管的佳（jiā）力學機能（néng）為:抗拉極限615MPa、屈就強度505MPa、伸長率（lǜ）23%、衝擊功280J、硬度≤180HB;組（zǔ）織晶粒（lì）度為8.5級（jí）,各項（xiàng）機能均（jun1）知足尺度和用戶的利用要求。

【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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