第1页共40页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共40页冷作模具钢主要用于制造在冷状态（室温）条件下进行压制成形的模具，如冷冲压模具、冷拉伸模具、冷镦模具、冷挤压模具、压印模具、辊压模具等。冷作模具品种多、应用范围广，其产值占模具总产值的30%~40%。采用的钢号很多，一般采用高碳过共析钢和莱氏钢体，如碳素工具钢、低合金油淬冷作模具钢、空淬冷作模具钢、高碳高铬型冷作模具钢、高速钢、低碳高速钢和基本钢及用粉末冶金工艺生产的高合金模具材料等。常用钢号及化学成分见表1-1-1。表1-1-1常用冷作模具钢化学成分w/%钢号CSiMnCrWMo油淬冷作模具钢9Mn2V0.85~0.95≤0.401.70~2.00CrWMn0.90~1.05≤0.400.80~1.100.90~1.201.20~1.609CrWMn0.85~0.95≤0.400.90~1.200.50~0.800.50~0.809SiCr0.85~0.951.20~1.600.30~0.600.95~1.25Cr0.95~1.≤0.40≤0.401.30~1.70第2页共40页第1页共40页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共40页10空淬冷作模具钢Cr5Mo1V0.95~1.05≤0.50≤1.004.75~5.500.90~1.40Cr6WV1.00~1.15≤0.40≤0.405.50~7.001.10~1.50Cr4W2MoV1.12~1.250.40~0.70≤0.403.50~4.001.90~2.600.80~1.208Cr2MnWMoVS0.75~0.85≤0.401.30~1.702.30~2.600.70~1.000.50~0.80高碳冷作模具钢Cr122.00~2.30≤0.40≤0.4011.50~13.00Cr12MoV1.45~1.70≤0.40≤0.4011.00~12.500.40~0.60Cr12Mo1V11.40~1.60≤0.600.6011.00~13.000.70~1.20钢号CSiMnCrWMo基体钢和低碳高速钢6W6Mo5Cr4V0.55~0.65≤0.40≤0.603.70~4.306.00~7.004.50~5.506Cr4W3Mo2VNb0.60~0.70≤0.40≤0.403.80~4.402.50~3.501.80~2.507W7Cr4MoV0.60~0.70≤0.40≤0.404.50~5.006.50~7.500.20~0.50高韧性高耐磨性冷作模具钢7Cr7Mo2V2Si0.70~0.800.70~1.20≤0.406.50~7.502.00~3.00火焰淬火冷作模具钢7CrSiMnMoV0.65~0.750.85~1.150.65~1.050.90~1.200.30~0.50热作模具钢第3页共40页第2页共40页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第3页共40页主要用于制造对高温状态的金属进行热成形的模具。如热锻模具、热挤压模具、压铸模具、热剪切模具等。这类钢含碳量一般为0.3%~0.5%，添加提高高温性能的钨、钼、铬、钒等合金元素，又分为锻造模块用钢、铬钼系热作模具钢、铬钨系热作模具钢、奥氏体型高温热作模具钢等。特殊要求的热作模具有时采用高温合金和难熔合金制造。常用热作模具钢化学成分见表1-1-2。表1-1-2常用热作模具钢化学成分w/%钢号CSiMnCrMoWV其他锻压模块用钢5CrNiMo0.50~0.60≤0.400.50~0.800.50~0.800.15~0.30Ni1.40~1.805CrMnMo0.50~0.600.25~0.601.20~1.600.60~0.900.15~0.305NiCrMoV0.50~0.600.10~0.400.65~0.951.00~1.200.45~0.550.07~0.12Ni1.50~1.805Cr2NiMoV0.46~0.530.60~0.900.40~0.601.50~2.000.80~1.200.30~0.50Ni0.80~1.20钢号CSiMnCrMoWV其他铬钼系热作4Cr5MoSiV0.33~0.430.80~1.200.20~0.504.75~5.501.10~1.600.30~0.604Cr5MoSiV10.32~0.450.80~1.200.20~0.504.75~5.501.10~1.750.80~1.204Cr50.32~0.80~≤0.404.501.60~0.60~第4页共40页第3页共40页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第4页共40页模具钢W2VSi0.421.20~5.502.401.004Cr5MoWSiV0.30~0.400.80~1.200.20~0.504.75~5.501.25~1.751.00~1.70≤0.50铬钨系热作模具钢3Cr2W8V0.30~0.40≤0.40≤0.402.20~2.707.50~9.000.20~0.504Cr3Mo3SiV0.35~0.450.80~1.200.25~0.703.00~3.752.00~3.000.25~0.755Cr4W5Mo2V0.40~0.50≤0.40≤0.403.40~4.401.50~2.104.50~5.300.70~1.105Cr4W2Mo2SiV0.45~0.550.80~1.10≤0.503.70~4.301.80~2.201.80~2.201.20~1.305CrMO3SiMnVAl0.47~0.570.80~1.100.80~1.103.80~4.302.80~3.400.80~1.20Al0.30~0.703Cr3Mo3W2V0.32~0.420.60~0.90≤0.652.80~3.302.50~3.001.20~1.800.80~1.20奥氏体型高温热作模具钢5Mn15Cr8Ni5Mo3V20.45~0.55≤1.0014.50~16.007.50~8.502.50~3.001.50~2.00Ni4.50~5.50塑料模具用钢第5页共40页第4页共40页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第...
