常用热处理资料

1、常用钢热处理工艺参数表 注：温度10 硬度2HRC 钢号淬火规范及硬度临界温度/ 不同温度回火后的硬度HRC临界直径截面有效厚度（mm）淬火后硬度（HRC）加热冷却Ac3Ms硬度180240280320360380420480540580620650水淬油淬341011202030305050808012035860水8023505051474543403835332621813484550455045503545304045830水78033055565351484543383430251018685459505850554852455040452535T8、T8A790水-油6262585

2、654514945393429251518576065606560656065566250554045T10、T10A780水-油62635957555250464136302615185740Cr850油7823555554535250494744413631262036122450605055505545504045354035CrMo850油80037155545344353226243642202835CrMn47454441352926234265184238CrMoAl940油88536056555145393531281008040CrMnMo403634326010028604

3、2CrMo7803605554504540333150CrVA850油60585654535149474340-36305060Si2MnA870油60605856555452504435305562324665Mn820油605856545250474440343228253017255CrMnMo840油760220525553524845444443383634325CrNiMo840油7802305255535248454444433836343230CrMnSi48484847434236302640502340GCr156261595856535250413030356064606

4、460645863526248509SiCr626260585756555251454050CrWMn830油62615857555452504644405060656065606560645863566256609Mn2V800油62605856545149413Cr2W81100分、油850380485150494648484341Cr12980分、油62625957555245200Cr12MoV1030分、油62626260575345Cr12MoV1120分、油4444454848516352W18Cr4V1270分、油644Cr5MoSiV1（H13）10201050空气或油915

5、340565852505043525551514253453556058047493Cr2Mo（P20）810870油马氏体不锈钢淬火、回火及硬度表钢号淬火温度（）冷却剂淬火后硬度（HRC）硬度要求1Cr132Cr133Cr134Cr139Cr182Cr13Ni21Cr1310001050油（或水）401870030730302 Cr1310001050油（或空、水）43182462030650303 Cr1310001050油（或空）4824285703061030680304 Cr1310201060油（或空）5028325403058030620306303065030670303 Cr

6、13Mo10201060油（或空）4832365203056030580305903063030610301 Cr17Ni29801040油3636402303054030550305603060030560302 Cr13Ni210001020油4840452003023030520305203056030510309 Cr1810201060空（或油）55455020030230302303055030250309 Cr18MoV10401060空（或油）5550552003020030250（520）556023030淬透性表 截面尺寸mm淬火硬度34101120213031505180

7、8112015 渗碳水淬58655865586558655862506015 渗碳油淬5865406035 水淬4550455045503545304045 水淬 545950585055485245504045253545 油淬40453035T8 水淬6065606560656065566250554045T8 油淬5562T10 碱浴616461646164606220Cr 渗碳油淬60656065606560655662455540Cr 油淬50605055505545504045354035SiMn 油淬48534853485340454045354065SiMn 油淬5864586

8、450604855404540453540GCr15 油淬606460646064586352624850CrWMn 油淬6065606560656065606458625660Cr12MoV 油淬6065606560656065606560655862常用钢材的等温淬火时的等温温度 几种钢减少淬火变形在空气中预冷时间及温度钢号尺寸mm预冷时间s最高预冷温度4520148760770206474075065Mn201267507602084740760T102015873074020104730740CrMnGCr1520201079080020107790800钢号等温温度/钢号等温温度/3

9、0CrMnSi325400 GCr9210230652803509SiCr260280270350W18Cr4V26028055Si300360Cr12MoV26028060Si22703403Cr2W8280300T12210220几种常用钢材制工件等温淬火时的最大尺寸及最高硬度 钢号最大尺寸/mm最高硬度（HRC）T10 45760655535665Mn8535665Mn216535670MnMo165356 T10钢在20水中淬火时裂纹形成与试样尺寸间的关系 产生淬火裂纹试样百分数与淬火温度的关系 a) T10 水淬 b)9CrSi 水淬和油淬生产实践证明，选用Wc=0.4%以下的钢种可

10、以避免零件的淬火裂纹。 对于Wc=0.30.55%中碳钢临界直径为1015mm，许多作者也证实，临界淬裂直径也在这个范围 淬裂与Ms、Wc的关系（水中淬火） 临界直径、碳含量与淬裂的关系当钢中有害元素磷、硫增加时，如硫含量为0.04%时淬火后易产生裂纹，锰含量0.5%时也易淬裂（淬水的工件）。含B 很微量，淬透性也大大增加搅动对淬火效果的影响循环或搅动H值或淬火能力油水盐水不良0.250.300.91.02缓慢0.300.351.01.122.2中等0.350.401.21.3-良0.400.501.41.5-强烈0.50.81.62.0-极强烈0.81.145 碳钢的回火温度与尺寸变化放大比例2：