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1、“技能培训资料：常用钢的相变临界点“1、常用钢的临界点牌号临界点/AclAc3或AccmArlAr31072587068285010Mn2A72083062071412CrNi3A695800659726100CrNi3A680-12Cr2Ni4A670780575660100Cr2Ni4A670-1572587068585015Mn73586368584015SiMn2MoVA722848491-15Cr735870720-15CrMnA750848-15CrMnMoVA765870-18Mn2CrMoB741854-18Cr2Ni4WA695800350-100Cr2Ni4WA655695
2、-2073585568083520Mn72、3585468283520Mn2690820(610)(760)20Mn2B73083561373020MnVB72084063577020MnTiB(720)84362579520MnMoB73885069375020Cr76683870279920CrV76884070478220CrMnB-89062274920CrNi73580566079020CrNi3A710790-20Cr2Ni4A70577057566022CrMnMo7108306207403073281367779630Mn271880462772730Mn73481267579
3、630SiMnMoV740845-30Si23、Mn2MoWV739798-30CrMnSi76083067070530CrMo75780769376330CrMnTi76579050074030CrMnSiNi2A750760805830-30CrNi3705750-35SiMn750830645-35CrMoV755835600-35CrMo75580069575035CrMnSi76083067070538Cr74078069373038CrMoAI800840730-37CrNi3710770640-38CrSi7638106807554072479068076040Mn7267906
4、8976840Mn2713766627704404、MnB73078065070040MnVB73077463968140Cr74378269373040CrV75579070074540CrMnMo735780680-40CrSi755850-40CrMnSiMoV780830-40CrMnSiMoVRe72585062571540Cr5M02VSi85391572083040SiMnMoVRe76590062573040CrNi73176966070240CrNiMo710790-40CrMo730780-4572478068275145Mn271577064072045Mn2V72577
5、0-45Cr721771660693507207655、69072050Mn720760660-50Mn271076059668050Cr72177166069250CrV75278868874650CrMn750775-5572777469075555Si2Mn775840-55Si2MnB764794-55Si2MnVB765803-6072776669074360Mn72776568974160Si2Mn7558107007706572775269673065Mn7267656897417073074369372785723737-695T7730770700-T8730-700-T10
6、730800700-T11730810700-T12736、0820700-SiMn760865708-9SiCr770870730-CrWMn750940710-3Cr2W8V8202200790-3Cr2W88101100-W18Cr4V8202230760-W9Cr4V2810-760-3Cr3Mo3VNb836948-771923-Crl2V810-760-Crl2MoV815-Crl2Mo8101202260-5CrMnMo710760650-5CrNiMo710770680-GCrl5745900700-GCr15SiMn7708727081Crl37308507008202Crl3820950780-3Crl3780850-4Crl3790850-Crl7Ni2810-710-9Crl8830-810-4Cr9Si29009708108704Crl0Si2Mo850950700845Mnl3-
