1、常用金属材料热处理规范(1HRC1/1OHB)I临界点热处理规范丨硬度1钢号1()丨工序名称|加热温度（）|冷却方式IHB HRC1Ac1735|正火880-930|空冷|HB156120|Ac3855I渗碳920-950|Ar3835丨渗碳淬火860-880|水或油冷IHRC56IAr1 680丨高温回火650-680I空冷1芯部B1501|Ac1724I正火1850-890I空冷|HB185135|Ac3802I退火1840-890炉冷11Ar37741高温回火|650-680I空冷IIAr1680I淬火850-890I水冷IHRC47I回火500-540|空冷|HB241-286I|Ac
2、1724I退火820-840|炉冷|HB207145|Ac3780I正火I830-870I空冷|HB229|Ar3751|高温回火650-680|空冷I|Ar1682I淬火820-860I水冷|HRC50-601回火520-560I空冷1HB228-286|Ac1735|正火|900-930I空冷|HB179|Ac3854高温回火丨659-680I空冷1I20Mn|Ar3835|Ar16821AC1734I退火1830-880炉冷135Mn|AC3812|正火850-880|空冷|HB187Ar3796丨高温回火丨650-680I空冷1IAr1675I淬火I850-880|水或油冷|HRC50
3、-551回火400-500I空冷|HB302-3321丨临界点热处理规范|硬度钢号1I()|工序名称|加热温度（）|冷却方式|BHRCIAc1726I退火1820-8501炉冷|B217I45Mn1Ac3790|正火830-860I空冷1|Ar3768I高温回火1650-680I空冷1IAr1689I淬火1810-840|水或油冷|HRC54-60回火丨根据需要回火|水或空冷丨常用金属材料热处理规范丨临界点热处理规范硬度1钢号1()丨工序名称I加热温度（）|冷却方式IBHRC|Ac1725|退火|840-870炉冷|HB187|20Mn2|Ac3844I正火870-900I空冷1高温回火650
4、-680I空冷1I35SiMn|Ac1750I退火850-870炉冷|HB2291Ac38301正火880-920|空冷I|Ar3-丨高温回火丨650-680I空冷1Ar1645I淬火1880-9001油冷IHRC回火580-600I油冷|HB235-2771I42Mn2V|Ac1725I正火860-900|空冷1|Ac3770|高温回火640-680|空冷|HB217I淬火|850-870I水冷|HRC56-58I1回火530-670I空冷1HB362-3751IAc1765I退火|850-870炉冷|HB187|30CrMn|Ac3838I正火870-890I空冷11Ar3798I高温回火
5、|650-680I空冷1IAr1700I淬火1850-880|油或水冷IHRC451回火560-580I空冷|HB223-269|AC1760I退火840-860|炉冷550后空冷|30 CrMn AC3830I正火860-880I空冷|HB217ISiIAr3705I高温回火|630-710空冷I1(35)1Ar1670I淬火860-900I油冷1I回火1590-610|油或水冷|HB269-302II临界点热处理规范|硬度1钢号1()工序名称加热温度（）冷却方式|BHRC|Ac1740正火950-970|空冷|HB156-207I20CrMn Ac3 825丨渗碳淬火丨930-950/85
6、01油冷|HRC58-63ITi|Ar3730|芯部I|Ar1650|HRC30-45|丨临界点热处理规范|硬度1钢号()|工序名称|加热温度（）|冷却方式IBHRC|Ac1766I退火860-8901炉冷|HB179120CrAc3838正火870-9001空冷1Ar3799丨渗碳淬火920-950/850|水或油冷|HRC58-631|Ar1702高温回火650-6801空冷|芯部HB300|Ac1743|退火825-845炉冷|HB207140Cr|Ac3782|正火1850-880I空冷1HB156-2071|Ar37301高温回火1650-680I空冷1|Ar1693I淬火830-8
7、60I油冷IHRC52-601回火540-580|油或水冷IHB269-30211Ac17351退火840-850炉冷|HB241I40 CrMn Ac3780I正火850-880|空冷|HB321I MoAr3|高温回火丨660-680I空冷|HB241IAr1680I淬火840-860I油冷I1回火|670-690I水冷|HB241-286I|正火回火680-700I空冷|HB179-2411|Ac1755I正火860-880|空冷|HB241-2861|35CrMo|Ac3800I淬火850-880|水或油冷1|Ar3750I回火1570-590|空冷|HB235-2771|Ar1695IAC1800I退火840-8701炉冷|HB229|38CrMo|AC3940|正火930-970I空冷1IAIIAr3-丨高温回火700-720I空冷1I|Ar1730丨淬火I930-950|油或水冷I丨临界点热处理规范丨硬度1钢号I()|工序名称丨加热温度（）I冷却方式|BHRC3Cr13|AC3I淬火980-1100!油或空冷|-1801IAr31回火230-540|空冷|HRC38-53|I退火1880-920|炉冷至600空冷HB207|19Cr181淬火11010-1050|油或空冷-23511回火230-375|空冷|HRC55-59I