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常用渗氮钢种类别钢号渗氮厚的主要性能主要用途及备注低碳钢08,08Al,10,15,20,A3,20Mn,30,35抗大气与水的腐蚀螺栓、螺帽、销钉、把手等零件中碳钢及中碳低合金钢40,45,50,40Cr,50V提高耐磨与抗疲劳性能或提高耐大气及水的腐蚀性能曲轴,阶梯轴,低档齿轮等零件低碳合金钢18Cr2Ni4WA18CrNiWA,20Cr20CrMnTi,25CrNiWA,25CrNiWA,25Cr2MoVA耐磨、抗疲劳性能优良且心部韧性高,可在受冲击条件下工作轻负荷齿轮、齿圈等中、高档精密零件中碳合金钢38CrMoAlA,38Cr2MoAlA35CrMo,35CrNiMoA,42CrMo,40CrNiMoA,30Cr3WA,30CrMnSiA,30Cr2Ni2WVA,40Cr,38CrWVAlA,50CrVA耐磨性抗疲劳性能优良,心部强韧好,38CrMoAlA及38Cr2MoAlA渗氮后硬度很高耐磨性优良,抗疲劳性较好,但不宜受冲击机床主轴,镗杆坦克及飞机发动机主轴等模具钢Cr12,Cr12Mo,Cr12MoV,3Cr2W8,3Cr2W8V,4Cr5MoVSi,4Cr5W2VSi,5CrNiMo5CrMnMo耐磨,抗热疲劳,红硬性良好,有一定的抗冲击疲劳性能冷冲模,拉伸模,落料模,非铁金属压铸模等模具工具钢W18Cr4V,W6Mo5Cr4V2,W18Cr4VCo5耐磨性及红硬性优良高速钢铣刀等多种刃具铁素体型、奥氏体型及马氏体时效硬化型钢4Cr13,2Cr13,3Cr134Cr13,15Cr11MoV,15Cr12MoV,1Cr18Ni9Ti,45Cr14Ni,14W2Mo,25Cr18Ni8W2,17Cr18Ni9,40Cr14Ni9Cr3A1V2,1Cr14Ni14W2Mo,1Cr17Ni13Mo2Nb,3Cr19Ni9MoWNbTi耐磨性,红硬性及高温强度优良,能在500~600℃服役,经渗氮后耐蚀性有不同程度地降低,但在许多介质中仍有较好的耐蚀性纺纱机走丝槽,在腐蚀介质中工作的泵轴,叶轮、中壳等液压件以及在500~600℃环境中工作且要求耐磨的零件高钛渗氮专用钢30CrTi2,30CrTi2Ni3Al耐磨性优良,红硬性及抗疲劳性能好承受剧烈的磨粒磨损且不承受冲击的零件几种钢在氨中渗氮的工艺参数钢号渗氮工艺渗氮层厚度(mm)表面层硬度(HV10)典型工件阶段温度(℃)时间(h)氨分解率%38CrMoAlA510±103520~400.30~0.351000~1100镗杆活塞杆38CrMoAlA510±108030~500.50~0.60≥1000镗杆活塞杆38CrMoAlA535±103530~500.45~0.55950~1100镗杆活塞杆38CrMoAlA1515±102518~250.40~0.60850~1000十字销卡块大齿圈螺杆38CrMoAlA2550±104550~600.40~0.60850~1000十字销卡块大齿圈螺杆38CrMoAlA1510±1010~1215~300.50~0.80≥80HR30N十字销卡块大齿圈螺杆38CrMoAlA2550±1048~5835~650.50~0.80≥80HR30N十字销卡块大齿圈螺杆38CrMoAlA1510±108~1015~350.30~0.40700齿轮38CrMoAlA2550±1012~1435~650.30~0.40700齿轮38CrMoAlA3550±103900.30~0.40700齿轮38CrMoAlA510±1035~5520~400.30~0.55850-950曲轴38CrMoAlA500±105015~300.45~0.50550-650曲轴40CrNiMoA520±102525~350.35~0.55≥68HR30N曲轴40CrNiMoA1520±102025~350.40~0.70≥83HR15N曲轴40CrNiMoA2545±1010~1535~500.40~0.70≥83HR15N曲轴25CrNi4WA1520±101025~350.25~0.40≥73HRA受冲击或重载零件25CrNi4WA2550±101045~650.25~0.40≥73HRA受冲击或重载零件25CrNi4WA3520±101250~700.25~0.40≥73HRA受冲击或重载零件30Cr2Ni2WVA500±103515~300.25~0.30650~750受冲击或重载零件30Cr2Ni2WA500±105515~300.45~0.50650~750受冲击或重载零件30CrMnSiA500±1025~3020~300.20~0.30≥58HRC受冲击或重载零件30Cr3WA1500±104015~250.40~0.6060~70HRC曲轴等30Cr3WA2520±104025~400.40~0.6060~70HRC曲轴等35CrNi3WA1505±104015~35≥0.745HRC曲轴等35CrNi3WA2525±105040~60≥0.745HRC曲轴等35CrMo520±1060~7050~600.6~0.7560~650曲轴等35CrMo1505±102518~300.6~0.7560~650曲轴等35CrMo2520±102530~500.5~0.6650~700曲轴等50CrVA460±1015~2010~200.15~0.25弹簧50CrVA480±107~915~350.15~0.25弹簧40Cr490±102415~350.20~0.30≥550齿轮40Cr1520±1010~1525~350.20~0.30≥550齿轮40Cr2540±105235~500.50~0.70≥50HRC齿轮18CrNiWA490±103025~300.20~0.30≥600轴18Cr2Ni4A500±103515~300.25~0.30650~750轴1Cr13510±105520~400.15~0.25950~1050要求耐磨,抗疲劳抗蚀的零件1Cr13550±104825~400.25~0.30900~950要求耐磨,抗疲劳抗蚀的零件2Cr13500±104815~250.10~0.121000~1050要求耐磨,抗疲劳抗蚀的零件2Cr13550±105040~450.25~0.35850~950要求耐磨,抗疲劳抗蚀的零件15Cr11MoV1530±101030~350.30~0.40900~950要求耐磨,抗疲劳抗蚀的零件15Cr12WMoV2580±102050~650.30~0.40900~950要求耐磨,抗疲劳抗蚀的零件4Cr14Ni14W2-Mo510±103518~230.04~0.0680~85HR要求耐磨,抗疲劳抗蚀的零件4Cr14Ni14W2-Mo560±106025~400.10~0.1215N800~900要求耐磨,抗疲劳抗蚀的零件4Cr14Ni14W2-Mo630±104050~800.08~0.14≥80HR15N要求耐磨,抗疲劳抗蚀的零件25Cr18Ni18W2550±105540~550.15~0.22850~1000要求耐磨,抗疲劳抗蚀的零件25Cr18Ni18W2600±102435~500.12~0.16850~950要求耐磨,抗疲劳抗蚀的零件4Cr14Ni2W255±105540~550.18~0.25900~1000要求耐磨,抗疲劳抗蚀的零件4Cr14Ni2W2570±105545~600.20~0.30800~900要求耐磨,抗疲劳抗蚀的零件Cr10Si2Mo590±1035~3730~700.20~0.3084HR15N要求耐磨,抗疲劳抗蚀的零件1Cr18Ni9Ti570±108035~550.20~0.30900~1000要求耐磨,抗疲劳抗蚀的零件1Cr18Ni9Ti1545±103025~400.20~0.30≥900模具1Cr18Ni9Ti2565±104535~600.20~0.30≥900模具3Cr2W8V535±1012~1625~400.15~0.201000~1100模具4Cr5W2VSi560±105520~450.45~0.55700~750模具Cr12,Cr12Mo1480±101814~27≤0.20700~800模具Cr12MoV2530±102230~60≤0.20700~800模具Cr18Si2Mo570±103530~600.2~0.25≥800要求耐磨的抗氧化零件W18Cr4V515±100.25~120~400.01~0.0251100~1300刀具
本文标题:常用渗氮钢种及渗氮的工艺参数
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