铸铁材质标准.doc

《铸铁材质标准.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、铸铁材质标准 Graylron灰铸铁Standard-Spec.No.&Class标准T.S.σb≥N/mm2HardnessHB≤Note:(1)TestBarθ=30mm(2)Chemiealcompositionandotherrequirementcanbeestablisheduponwrittenagreementbetweenmanufacturerandpurchaser.(3)Thehardnessvaluesareforcastingsof15~30mmthickness.注：(1)试棒直径=30mm;

2、(2)化学成分和其它要求可与客户商定；(3)硬度值适用于15-30mm壁厚铸件GBChina/ISOJISJAPANASTMU.S.A.HT200/200FC200CI.30200223HT250-250FC250CI.35250241HT300/300FC300CI.40300262HT350/350FC350CI.50350277 Ductilelron球墨铸铁Standard-Spec.No&Class标准T.S.σb≥N/mm2Y.S.σs≥%ELσ≥ForReference(供参考)Note:(1)Separat

3、elycasttestbarsmachinedtoφ14mmfrom25mmkeelblocks;(2)Sameasabovenote(2)注：(1)单铸试块将25MM基尔试块加工到直径为φ14mm(2)与上表中(2)相同 GBChinaJISJapanASTMA536U.S.A.HardnessHBMicor-structure(基体)QT400-18FCD400-1860-40-1840025018130-180Ferrite(F)铁素体QT450-10FCD450-10 45031010160-210(F)铁QT50

4、0-7FCD500-765-45-125003207170-230(F)+Pearlite(P)铁+珠光体QT600-3FCD600-380-55-066003703190-270(P)+(F)珠+铁QT700-2FCD700-2100-70-037004802225-305(P)珠QT800-2FCD800-2100-70-038004803245-335(P)ortemperedstructure(珠) AlloyCastlronforSpecialUse特殊合金铸铁Standard-Spec.No.标准Chemica

5、lComposition%(化学成分)MechanicalpropertiesMicro-Structure(ascast)铸态基体GBChinaJISJapanASTMU.S.A.CMnSiCrOthers(其它)T.S.σbN/mm2HardnessHeat-ResistantDuctilelron耐热球铁(Heat-ResistantTemp.750-900℃耐热温度)RQTSI-5  2.4-3.2≤0.74.5-5.5 Mg0.035-0.065RE0.015-0.04≥370HB228-302(F)铁Wear-

6、ResistantCastlron耐磨铸铁KmTBCr15Mo2-GT A532IIC2.8-3.50.5-1.0≤1.013.0-18.0Mo0.5-3.0,Ni0-1.0Cu0-1.2 HRC50-58(M,A)马氏体，奥氏体KmTBCr26 A532IIIA2.3-3.00.5-1.0≤1.023.0-28.0Mo0-1.0,Ni0-1.5Cu0-2.0 HRC50-58(M)马Corrosion-ResistantCastlron耐蚀铸铁STSi15R  ≤1.0≤0.514.25-15.75 RE<0.1 HRC

7、≤48(F)铁 PlainCarbonCastSteel碳素铸钢Standard-Spec.No.&Grade标准ChemicalComposition≤%MechanicalProperties≥NOTE:(1)S,P≤0.04%(2)C,Mn%canalsobeagreeduponbymanufacturerandpurchaser.(3)HeatTreat:Normalize(N)+Temper(T)orQuench(Q)+T,selectedbyFoundry注：(1)S，P含量≤0.04%(2)C,Mn含量由供需

8、双方商定(3)热处理由厂方选择：N(正火)+T(回火)或Q(淬火)+T(回火)GBChinaJISJapanASTMU.S.A.CSiMnT.S.σbN/mm2Y.S.σsN/mm2ELσ%R.A.ψ%ZG200-400SC420A2760-300.20.50.84002002540ZG230-450S