钢的临界温度

1、钢临界温度：Ac1、Ac2、Ac3、Ar1、Ms这5个符号的意义Ac1：加热时珠光体向奥氏体转变的开始温度。Ac3：加热时先共析铁素体全部转变成奥氏体的终了温度。Ari ：冷却时奥氏体向珠光体转变的开始温度。Ms淬火时马氏体的转变起始温度。A2 ,(770 C)在Fe-Fe3C状态图上是铁素体的磁性转变曲线的温度钢的临界温度参考值日期：2010年8月10日11:16单位：CrF.rrt 牌号Ac1Ac3碳素结构钢Ar1Ar3Ms087258907008544801073087568085515735863685840450207358556808652573584068082438030732

2、813677796380357248026807743604072479068076034045725770690720330507257606907213005572777469075529060727766690743265657277526967302657073073769572724075725740690727230807257306907272308572373769069522015Mn73586368584020Mn73585468283542025Mn73583068080030Mn73481267579635535Mn73080068077040Mn72679068976

3、8Y40Mn73180728045Mn72677068976850Mn72076066032060Mn72776568974127065Mn72676568974127070Mn723740680合金结构钢10Mn272083062071016Mn73685038620Mn272584061074540030Mn271880462772136035Mn271379363071032540Mn271376662770432045Mn271176562670432050Mn271076059668032008Mn2Si735905300牌号Ac1Ac3Ar1Ar3Ms15Mn2SiCrMo7258

4、5538045MnSiV73580529518MnMoNb73685064675637020MnMo73083968572930Mn2MoWA72084533045MnMoV72779124015MnNi70785815MnNiMo71485415MnTiRE73486561577939012MnV73486561577914MnMoV710727880 908561 665763 80015MnV72085063578018MnMoNb76385064675620MnV73085363075041525Mn2V72483962071036535Mn2V72577032042Mn2V72577

5、031045Mn2V72577031020SiMn73284027SiMn75083069075035535SiMn75083064533040SiMn76081529042SiMn74080064571533050SiMn71079763670330515SiMn3MoA68086032739629032Si2Mn2MoA防弹钢)72789162077431515SiMn3MoWV(A)68583034541536020SiMn2MoV727*877*640816330*25SiMn2MoV727*866*640785319*30SiMn2MoVA72584563072531030Si2Mn

6、2MoWV73979831035SiMn2MoV73578030637SiMn2MoV72982331437SiMn2MoWV72083535051029040SiMn2MoWV72283629042SiMnMoV75587029535B73080269179140B73079069072745B72577069072050B(A)72575567071925315MnB72084741020Mn2B73085361373630Mn2B726786牌号Ac1Ac3Ar1Ar3Ms40MnB73078065070032540MnBRE72580534045MnB72778012MoVWBSiRE

7、83594080488014MnMoVBRE75790070077320MnMoB74085069075030Mn2MoB73480030Mn2MoTiB(A)73381464069840MnMoB72480565273715MnVB73084063577043020MnVB72084063577023020MnTiB72684061075341020Mn2TiB71584362579525MnTiBRE70881060570539140MnVB73077463968140MnWB73482232020SiMnVB72686669977922SiMnMoWTiB74486210CrNiMoVB

8、72487612Cr2MoWVTiB820845950 980730 740830 85542012Cr3MoVSiTiB84095837415CrMoVB75689618CrMn2MoBA74185432018Cr2Mn2MoTiB77086020Cr1Mo1VNbB82790979386225CrMnMoTiB76585165375640330Cr2MnMoB72481515Cr76683870279920Cr76583670279939030Cr74081567035535Cr74081567036538CrA78084035038CrA176088567574036040Cr74380

9、569373032845Cr74579066069335550Cr72177166069325015CrMn75084569040020CrMn76583570079836040CrMn74077569035050CrMn73076029015CrMn2SiMo(A)73280538947836020CrMnSi(A)75584069020Cr2Mn2SiMo(A)725835615700305牌号Ac1Ac3Ar1Ar3Ms25CrMnSi(A)76088068030530CrMnSi(A)76083067070535235CrMnSi(A)77583070075533040CrMnSiMo

10、VA78083028840CrMnSiNiMo69580033045CrMnSi(A)79088029550CrMnSiMo79081527530CrMnMoTiA75583035014CrMnSiNi2MoA72480560769036418CrMnNiMo73079549069038030CrMnSiNi2A750760805 830310 32018CrMnTi74082565073020CrMnTi74583066573042430CrMnTi76579066074040CrMnTi76582064068032035CrSi75583071534038CrSi7638106807553

11、3040CrSi75581571532016CrSiNi745*845*390*40CrSi2Ni2MoA74880229016Mo735875 90061083042020Mo726*845*420*30Mo724*825*390*12CrMo72088069579012Cr2Mo179090038015CrMo74584569579043520CrMo74681850474638025CrMo75082066574538030CrMo75780769376334530Cr3MoA76581033535CrMo75580069575032035CrMoAl77588535538CrMoAl(

12、A)76088567574036042CrMo73080069031045CrMo72076028550CrMo72576029015CrMnMo71083062074020CrMnMo71083062074020Cr2Mn2Mo76182865573531030CrMnMoTiA75583035040CrMnMo73578068012CrMoV79090077486512CrlMoV774803882 914761 787830 895400牌号Ac1Ac3Ar1Ar3Ms15CrMnMoVA77087067478037617CrMo1V783 803885 922741785811 838

13、20CrMoWV80093033020Cr3MoWVA82093069079033024CrMoV79084068079025Cr2MoV77084069078034025Cr2MolVA78087070079030Cr2MoV78183371174733032Cr3MoVA79583531035CrMoVA75583560035635 Cr1Mo2V77089527038 Cr2Mo2VA78085032055CrMoV75579068071526530Ni69081036540Ni71577033012CrNi71583067012CrNi2(A)71583067076840512CrNi

14、3(A)72081060071540912Cr2Ni4(A)72080060567539018CrNi4A70578057067036020CrNi(A)71080566079041020CrNi3A70076050063034020Cr2Ni4A68577558563030530CrNi3A69974965032035Cr2Ni4A68576062164932037CrNi3(A)71077064031040CrNi70775066070134045CrNi72577568031050CrNiA72577068030012CrNi3Mo71080038512Cr2Ni3Mo69078512CrNi4Mo66077037016CrNi3MoA69577032018Cr2Ni4Mo70081037020CrNiMo72581039630CrNiMo73077534030CrNi3Mo68077031030CrNi4MoA70074032534CrNi3Mo70575029035CrNi2Mo69578040032035Cr2Ni4MoA72076520040