钢的临界温度参考值(第7版)

1、钢的临界温度参考值（第 7 版）FeC,耸FeaC东北特殊钢集团徐效谦整理牌号AciAC3AriAr 3Ms碳素结构钢0873289070085448010730875680855157358636858404502073585568086525735840680824380307328136777963803572480268077436040724790680760340457257706907203365072576069072130055727774690755290607277666907432656572775269673026570730737695727240757257406

2、90727230807257306907272308572373769069522015Mn73586368584016Mn73685068283541020Mn73585468283542025Mn73583068080030Mn73481267579635535Mn73080068077040Mn726790689768Y40Mn73180728045Mn72677068976850Mn72076066032060Mn72776568974128065Mn72676568974127070Mn723740680合金结构钢10Mn272083062071020Mn27258406107404

3、0030Mn271880462772136035Mn271379363071032540Mn271376662770432045Mn271176562670432050Mn271076059668032008M n2Si735905300单位：C钢的临界温度参考值（第6版）牌号Ac1AC3Ar iAr 3Ms15Mn 2SiCrMo72585538045M nSiV73580564271829518MnMoNb73685064675637020MnMo73083968572938030MnMo71581538MnMo72082045MnMo72579040030Mn 2MoW A7208453

4、3035MnMoWV74039045MnMoV72779124018MnMoNb76385064675615MnNi70785820MnN iCu70580539015MnNiMo71485420MnNiMo68584542015Mn TiRE73486561577939009MnVRE64080073032012M nV73486561577915MnV72085063578020MnV73085363075041525Mn 2V72483962071036535Mn 2V71577032042M n2V72577031045Mn 2V72577031014MnMoV710727880908

5、561665763 80014Mn VTiRE72588520SiM n73284027SiM n75088075035535SiM n73579569033040SiM n76081529042SiM n74080064571533044M n2Si73081028550SiM n71079763670330527Si2M n2Mo74582034032Si2Mn2MoA(防弹钢)72789162077431515SiM n3MoA68086032739629015SiM n3MoWV(A)68583034541536020SiM n2MoV727*877*640816330*25SiM n

6、2MoV727*866*640785319*30SiMn2MoV A72584563072531030Si2M n2MoWV73979831035SiM n2MoV735780306牌号Ac1AC3Ar iAr 3Ms37SiM n2MoV72982331437SiM n2MoWV72083535051029040SiM n2MoWV72283629042SiM nMoV75587029535B73080269179140B73079069072745B72577069072028050B(A)74079067071928060B74074527015MnB72084741020Mn 2B73

7、085361373638030Mn 2B72678640MnB73078065070032540Mn BRE72580534045MnB72778060MnB71074028012MoVWBSiRE83594080488014MnMoVBRE75790070077320MnMoB74085069075030Mn 2MoB73480030M n2MoTiB(A)73381464069840MnMoB72480565273720Mn TiB(RE)71584362579539520Mn 2TiB70887060570525M nTiBRE70881060570539115MnVB730840635

8、77043020MnVB72084063577043540MnVB73077463968140MnWB73680063069532020SiM nVB72686669977922SiM nMo WTiB7448624OCrB74177740CrM nB72978567635018CrM nMoB74084020CrM nM oVB85067578040CrM nM oVBA73479222CrM nWMoTiB74486245051326710CrNiMoVB72487612Cr2MoWVTiB82084595098073074083085542012Cr3MoVSiTiB8409583741

9、5CrMoVB75689618CrM n2MoBA741854320牌号Ac1AC3Ar iAr 3Ms18Cr2M n2MoB74184018Cr2M n2MoTiB77086020Cr1Mo1VNbB82790979386225CrM nM oTiB76585165375640330Cr2M nMoB72481515Cr76683870279920Cr76583670279939030Cr77581067035535Cr74579567036038CrA74078069373035030CrA178086536038CrA176088567574036040Cr74380569373035

10、545Cr74579066069335550Cr73578066069325060Cr74076045Cr378082033015CrM n75084569040020CrM n76583570079836040CrM n74077569035050CrM n74078530035CrM n273077563068030050CrM n273076029018CrM nN iMo73079549069038020CrM nN iMo72080040040CrM nN iMo39078029030CrM nM oTiA75583035035CrM nMoWV73082049032030CrM n

11、2MoNb76540130535CrM n2MoNb72578032020CrM nSi(A)75584069020Cr2M n2SiMo(A)72583561570030525CrM nSi(A)76088068030530CrM nSi(A)76083067070536035CrM nSi(A)77583070075533040CrMnSiMoV A78083028840CrM nSiNiMo69580033045CrM nSi(A)79088029550CrM nSiMo79081527515CrM n2SiMoA73280538947836014CrM nSiNi2MoA7248056

12、0769036430CrMnSiNi2A(超高强钢)750 760805830310320牌号Ac1AC3Ar iAr 3Ms18CrM nTi73082069036520CrM nTi74082568073036030CrM nTi76579066074040CrM nTi76582064068031025CrM nV73582042035CrSi75583071534038CrSi76381068075533040CrSi76081571532516CrSiNi745*845*390*30CrSiMo78086035040CrSi2Ni2MoA74880229016Mo7358759006

13、1083042020Mo726*845*420*30Mo724*825*390*12CrMo72088069579012Cr1Mo79090038015CrMo74584569579043520CrMo74584050474638025CrMo75083066574536530CrMo75780769376334535CrMo75580069575032038CrMo76078032042CrMo73078069031045CrMo73080031050CrMo72576029025Cr3Mo77083536030Cr3MoA（渗碳、渗氮钢）76581033538CrMoAIA（渗碳、渗氮钢）

14、76088567574036015CrM nMo71083062074020CrM nMo71083062074024930CrM nMo73079538540CrM nMo73277464024620Cr2M n2MoA76182865573531030CrM nM oTiA75583035030CrM nWMoNbV72082551535512CrMoV79090077486512CrIMoV77480388291476178783089540012CrIMo1V79593015CrMnMoV A77087067478037617CrMo1V783803885922741785811838

15、20Cr1Mo1VNbB82790979386220CrMoWV800930330牌号Ac1AC3Ar iAr 3Ms20Cr3MoWV A82093069079033024CrMoV79084068079025Cr2MoV77084069078034025Cr2MolV A78087070079030Cr2MoV78183371174733032Cr3MoVA（渗碳、氮钢）79583531035CrMoVA75583560035635 Cr1Mo2V77089527038 Cr2Mo2VA（超高强钢）78085032045CrMoV75083032055CrMoV75579068071526

16、530Ni69081036540Ni71577033050Ni72575532015NiMo72580065075033010Ni271082042512Ni368581045025Ni369076034030Ni367075031035Ni367075031040Ni366574031060Ni465072010Ni561577513Ni561076535040Ni565071036050Ni565024015NiMo72580065075033012CrNi71583067020CrNi72080068079041040CrNi73077066070230545CrNi7257756803

17、1050CrNi72577068030012CrNi2A73279467176339512CrNi3A（渗碳、渗氮钢）71082066038020CrNi3A70076050063034030CrNi3A69978065032037CrNi3A71077064028018CrNi4A（渗碳、渗氮钢）70578057067036020Cr2Ni2V72079539012Cr2Ni4A（渗碳、渗氮钢）67078060567539020Cr2Ni4A68577558563030535Cr2Ni4A685760621649320牌号Ac1AC3Ar iAr 3Ms40Cr2Ni468075024020

18、CrNiMo72581039630CrNiMo73077534035CrNiMo73081034040CrNiMoA72079068032017CrNi2Mo69081030CrNi2Mo69578535035CrNi2Mo69578031040CrNi2Mo68077530012CrNi3Mo71080038516CrNi3MoA（渗碳、氮钢）69577032025CrNi3MoAI74078029030CrNi3Mo68077031035CrNi3Mo70576031012CrNi4Mo69079037030CrNi4MoA70074032535CrNi4Mo70075027035Cr2N

19、iMo73078032030Cr2Ni2Mo74078035035Cr2Ni2Mo75079035512Cr2Ni3Mo69078535Cr2Ni3Mo73077039512Cr2Ni4Mo66077037018Cr2Ni4Mo70081037020Cr2Ni4Mo71582039035Cr2Ni4MoA（超高强钢）72076520045CrNiMoV A72079065027530CrNi2MoV A72578064032025CrNi3MoV68080033030CrNi3MoV74079032035CrNi3MoV72578032032CrNi2MoTiA（防弹钢）72577431815

20、CrV75587077043520CrV76684070478243530CrV76582035540CrV75579070074534045CrV74078074631550CrVA75278068874630035Cr2V76085031035CrW75081037018CrNiWA69580031030CrNiWA720*800*350*牌号Ac1AC3 (ACcm)Ar iAr3(Ar cm)Ms30CrNi2WV A706*785*320*18Cr2Ni4WA（渗碳、氮钢）69581035040031025Cr2Ni4WA68577030029035Cr2Ni4W6607603001

21、6Co14Ni10Cr2MoE60080031032012WMoVSiRE835940804880380非调质钢LF10 Mn SiTi795862696LF10 Mn 2VTiB654840623714405LF20 Mn 2V715845394GF30 Mn 2SiV720798608702GF32M n2SiV720798343YF35V715800350YF35 MnV708798351YF35 MnVN735818639731296F40 MnV746796667755YF40 MnV725800619714320F40 MnV (Ti)728815632694405GF40Si M

22、nVS735800345F45V749800680747310YF45V740797310YF45 MnV740790260碳素工具钢T7(A)725765700280T8(A)730750700220T8Mn (A)725690T9(A)730760700190T10(A)730(800)700200T11(A)730(810)700185T12(A)730(820)700200T13(A)730(830)700190T10 Mn2710(850)125合金工具钢SM1CrNi3(P6)7208106007154091Ni3M n2MoCuAI6758213825172702Cr3Mo2Ni

23、VSi776851672Y20CrNi3 MnM oAI(P21)7407802903Cr2MoWVNi8168332683Cr2M nN iMo7157702803Cr2Mo(P20)7708256407603353Cr3Mo3VNb8259207348103553Cr3Mo3W2V840922786839373牌号Ac1AC3 (ACcm)Ar iAr3(Ar cm)Ms3Cr2W4V8208406904003Cr2W8V(H21)820(925)773(838)3803Cr3Mo3VNb825(920)7348103554CrM nSiMoV7928556607702904CrSi745

24、8607252904CrSiV7658307253304CrMoVSi8509101304CrW2Si(SKS41)7808407353154CrW2VSi8008757302754Cr3Mo2 MnVB8018746807593424Cr3Mo2 MnV NbB7899102634Cr3Mo2 MnWV7703204Cr3Mo2NiVNb7703204Cr3Mo3SiV(H10)8109107503604Cr3Mo3W2V8509307358254004Cr3Mo3W4VTiNb8218807528504Cr4Mo2WVSi8309106707502554Cr5MoSiV(H11)85391

25、27358103104Cr5MoSiVI(H13)8609157758153404Cr5MoWSiV8359207408252904Cr5Mo2 MnVSi8158932714Cr5W2VSi8759157308402755Si Mn7557906905Si MnM oV(S2)7647883005Cr3 Mn SiMo1V(S7)792*835*254*5Cr3W3MoSiVNb7809206657253305CrM nSiMoV7107606502155CrMnMo7107606506802205CrNiMo(L6)7307806802305CrNiMoV7408156507302105C

26、rNiM nMo VSCa6957353053782205CrNiTi7207707002305CrNiW7308202055Cr2NiMoVSi7508746257512435Cr4Mo3SiMnV Al8379022775Cr4Mo2W2SiV8108857007852905Cr4Mo2W5V8368937448162505CrW2Si(S1)7758607252956CrSi7708307102506CrNiM nSiMoV7057405806051746Cr4Mo3Ni2WV7378226501806CrW2Si775810725280牌号Ac1AC3 (ACcm)Ar iAr3(Ar

27、 cm)Ms6Cr4W3Mo2VNb8207302206Cr6W3MoVSi875(905)7557902506W6Mo5Cr4V8207302407Mn Si27507752157CrSiM nMoV7768346947322117Cr4W3Mo2VNb8108307407602207Cr7Mo3V2Si(LD1)876(925)725(816)1057Cr4W7MoV7851848Cr2M nMoWVS7708206607108Cr37858307507703708CrV740*761*7002159Mn2710(760)6259Mn 2V(O2)736(765)652(690)1809S

28、iCr770(870):7301609Cr2730(860)7002709Cr2Mo755(850)1909CrWM n750(900)710230MnSi760(865)708245Mn CrWV(O1)750(780)655190SiM nMo735(770)676(720)SiM nWVNb750(785) 130Cr745(900)700240V730770700200Cr06730(950)700(740)CrMn740(980)700245CrMn Si730(930)700Cr2745(900)700240Cr2M n2SiWMoV770740640(605)190Cr4W2Mo

29、V795(900)760142Cr5MolV(A2)785(835)705(750)180Cr8Mo2SiV(DC53)845(905)715(800)115Cr12(SKD1)810(835)755(770)180Cr12MoV(SKD11)830(855)750(785)230Cr12Mo1V1(D2)810(875)750(695)190Cr12Mo810(875)695230Cr12MoW815255Cr12V810760180V730(770)700200VTi740(760)670(680)250W(F1)740(820)710W2745(950)720W3CrV770805710

30、730牌号Ac1AC3 (ACcm)Ar iAr3(Ar cm)MsCrW760(805)725CrW4760(790)CrW5760(790)700(730)CrWM n(SKD31)750(940)710255高速工具钢9Cr6W3Mo2V2795(820)220Cr4W2MoV795(900)760142Cr6WV815(845)625(775)150Cr8MoWV3Si858907215Cr12W815(865)7151809W18Cr4V810(845)135W18Cr4V(T1)810860(865)726(753)150200W18Cr4VCo5(T4)820(875)13019

31、0W14Cr4V MnRE795(860)W12Cr4V4Mo835855770225W12Mo3Cr4V3N830870765175W12Mo3Cr4V3Co5Si835 860140W10Cr4V4Co5820170W10Mo4Cr4V3AI830 860(890)115W9Cr4V2820(870)740(780)200W9Mo3Cr4V830(875)195CW9Mo3Cr4VN810(850)160W9Mo3Cr4V3840(875)210W9Mo3Cr4V Al850(890)220W9Mo3Cr4VCo5810(845)195W8Mo5Cr4VCo3N820116W7Mo4Cr4

32、V750(830)145W6Mo5Cr4V2(M2)835(885)736(781)131W6Mo5Cr4V2Co5823852220W6Mo5Cr4V2AI845(924)120W6Mo5Cr4V3810845140W6Mo5Cr4V5SiNbAI830 860160W6Mo5Cr4V2Co5836877739753220W4Mo3Cr4VSi815(855)170W3Mo2Cr4VSi815(865)140W2Mo9Cr4V(M1)827195W2Mo9Cr4V2(M7)810820845860210W2Mo9Cr4VCo8(M42)830855150弹簧钢30W4Cr2VA8208406

33、9040050CrM n74078569030050CrM nV735787686745290牌号Ac1AC3 (ACcm)Ar iAr3(Ar cm)Ms50CrVA75278868874630067CrVA(TDSiCr)732772*228*55CrMnV A75078768674527555SiM nB74078064868024055Si2M n77584069030055Si2M nB77082569074528955SiM nMoV74581561069029055SiM nMo VNb73077059068529255SiM nVB75077567070055CrM nA750

34、77525055CrSi765*825*290*60CrSiV(TDSiCrV)763*823*256*60SiM n73079028560Si MnMo70076026460Si2M nA75581070077030560Si2CrA76578070060Si2CrVA77078071060Si2Mo74079026060CrM nA735*765*260*60CrM nBA735*765*260*60CrM nMoA70080565525560CrM nSiVA74580027065M nSiV75580267570525565Si2M nWA76578070070Si2CrA756800

35、22070Si3 Mn(A)780810700290轴承 钢G20CrMo(AISI4118)750825680775380G20CrNiMo(AISI8620)730830669770395G20CrNi2Mo(AISI4320)725810630740380G20Cr2Ni4685775585630305G55SiMoVA765858687759304G8Cr15752(824)684780240GCr6735(860)700192GCr9740(887)690721205GCr9SiM n738(775)700724170GCr15760(900)695707240GCr15SiM n7

36、70(872)708200GCr15SiMo750(785)695210GCrSiWV765(810)692200GMnMo V(RE)743(873)677(698)175GSi Mn (RE)745674150牌号Ac1AC3 (ACcm)Ar iAr3(Ar cm)MsGSiM nV755(780)680(705)100GSiM nVRE745(785)680(730)125GSiM nMoV740(800)681(727)115GSi MnM oVRE742(887)1682(702)Cr4Mo4V(M50)726(840)720(778)130Cr14Mo4V(AISI618)875

37、(925)745(800)不锈耐热钢1(12)Cr6Si2Mo8508907657900(06)Cr138009057808203701(12)Cr138208507008203402(20)Cr138208936717433203(30)Cr138008409507007422403(30)Cr13Si8302503(32)Cr13Mo8408907507904(40)Cr1380085010007802706(60)Cr13Mo8259002103(31)Cr17Mo860985175*1Cr10Co6MoVNb7608153601(13)Cr11Ni2W2MoV7357858859202

38、793451Cr12Ni3Mo2V7158153051(14)Cr12Ni2WMoVNb7608102901(15)Cr12WMoV8208906707601(12)Cr13Ni2(414)7322741(14)Cr17Ni2(431)7271432(25)Cr13Ni27067803204(42)Cr9Si28659358058301904(40)Cr10Si2Mo9009708108702808(83)Cr20Si2Ni8409203059(95)Cr18810840740765170102Cr17Mo(9Cr18Mo)81576514511(108)Cr17(440C)815840740

39、765145(110)Cr14Mo4V875925745800注：1钢的显微组织转变点A3和Acm是在缓慢加热、缓慢冷却条件下测得的临界点，因同一牌号钢的化学成分不尽相同、加热和冷却速度也有差别，实测临界温度出现波动是正常的。实际 生产中，钢的组织转变总有滞后现象，实现组织转变，加热温度要高于临界点，冷却温度要低于临 界点。通常把加热时的临界点表示为Ac1、Ac3和Accm，把冷却时的临界点表示为ArAr3和Arcm。另外，用Ms和Mf表示马氏体开始转变和转变终了温度。2. *表示计算值，计算采用安德魯斯( K.W.Andrews )公式16Aci= 723 10.7Mn% 16.9Ni% + 29.1Si% + 16.9Cr% + 29OAs% + 6.38W%(C)Ac3 = 910- 203 c% 15.2Ni% + 44.7Si% + 104V% + 31.5Mo% + 13.1W%(C)M s= 539 423C%