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时间:2020-01-11
《合金钢铸件(JBZQ4297-1986)》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、合金钢铸件(JB/ZQ4297-1986)合金钢铸件(JB/ZQ4297-1986)(1)牌号和化学成分见表1。(2)力学性能见表2。表1合金铸钢的牌号和化学成分牌号化学成分(质量分数)(%)CSiMnSPCrNiMoCuZG40MnO.3~O.45O.30~O.451.20~1.50≤O.030Z040Mn20.35~O.45O.20~O.401.60~1.80≤0.030ZG50Mn20.45~0.550.20~O.401.50~1.80≤O.030ZG20siMn≤0.023≤0.601.00~1.50≤0.025≤0.30≤0.40≤0.15ZG35SiMn0.30~O.40O.6
2、0~O.801.10~1.40≤0.030ZG35SiMnMOO.32~0.401.10~1.401.10~1.40≤O.030≤O.30≤O.300.20~O.30≤0.30ZC35CrMnSi0.30~O.40O.50~O.750.90~1.20≤0.0300.50~O.80ZG20MnMO0.17~0.230.20~O.401.10~1.40≤0.030≤0.30≤O.30O.20~0.35≤O.30ZG55CrMnMO0.50~0.60O.25~0.601.20~1.60≤0.0300.60~0.90≤O.300.20~0.30≤O.30ZG40Cr0.35~0.450.20~O.
3、400.50~O.80≤O.030O.80~1.10ZG34CrNiMO0.30~O.37O.30~0.600.60~1.00≤O.0251.40~1.701.40~1.70O.15~0.35ZG20CrMO0.17~0.25O.20~O.45O.50~0.80≤0.030O.50~0.800.40~O.60ZG35CrMOO.30~O.370.30~0.50O.50~0.80≤O.0300.80~1.200.20~0.30ZG42CrMO0.38~0.45O.30~0.60O.60~1.00≤0.025O.80~1.20O.20~O.30ZC50CrMO0.46~O.54O.25~0.5
4、0O.50~O.80≤O.030O.90~1.20O.15~O.25ZG65MnO.62~O.700.17~O.37O.90~1.20≤O.030≤0.25≤0.25表2合金铸钢的力学性能牌号热处理截面尺寸/mm屈服点ós或屈服强度ó0.2/MPa抗拉强度ób/MPa伸长率δ(%)断面收缩率¢(%)冲击韧度aKU/(J/㎝?)硬度HBSZG40Mn正火+回火≤1002956401230163ZG40Mn2正火+回火调质≤1003956855908352013554535179269~302ZG50Mn2正火+回火≤1004457851837ZG20SiMn正火+回火调质≤l00295300
5、510500~65014243039156150~190ZG35SiMn正火+回火调质≤100345415570640121220252427ZG35SiMnMo正火+回火调质≤100395490640690121220252427ZG35CrMnSi正火+回火≤1003456901430217ZG20MnMO正火+回火≤1002954901639156Zg55CrMnMo正火+回火≤100不规定ZG40Cr正火+回火≤1003456301826212ZG34CrNiMo调质<150150~250250~400700650650950~100C800~950800~95012121O240
6、~290220~270220~270ZG20CrMo调质≤100245460183024ZC35CrMO调质≤100510740~83012ZC42CrMo调质~3030~100100~150150~250250~400540490450400350740~830690~830690~830650~800650~800121110108220~260200~250200~250195~240195~240ZG50CrMo调质≤100520740~88011220~260ZG65Mn正火+回火≤100不规定(3)用途见表3。表3合金铸铁的应用牌号应用举例ZG40Mn用于承受摩擦和冲击的零件,
7、如齿轮等ZG40Mn2用于承受摩擦自皂零件如齿轮等ZG5OMn2用于高强度零件,如齿轮、齿轮缘等ZG20SiMn焊接及流动性良好,作水压机缸、叶片、喷嘴体、阀、弯头等ZG35SiMn用于受摩擦的零件ZG35SiMnMo制造负荷较大的零件ZG35CrMnSi用于承受冲击、受磨损的零件,如齿轮、滚轮等ZG20MnMo用于受压容器如泵壳等ZG55CrMnMo有一定的红硬性,用于锻模等ZG40Cr用于高强度齿轮ZG34CrNiM
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