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个人中心收藏查看我的收藏0有用+10播报讨论上传视频模具钢（对应美标O2模具钢）是GB/T 1299标准下的低合金冷作模具钢，属于不含镍、铬元素的经济型工具钢。其碳含量为0.85%-0.95%，锰元素（1.70%-2.00%）提升淬透性及基体强度，钒元素（0.10%-0.25%）细化晶粒并降低过热敏感性，退火硬度≤229HB，淬火后硬度≥62HRC [1]。该钢种采用780-810℃油冷淬火及150-200℃回火工艺，淬火变形小且淬透性优异，适用于硝盐、热油等缓冷介质 [2]。通过深冷处理或低温化学热处理可进一步提升耐磨性，盐浴硫氰共渗对改善抗冲击粘着效果显著。主要应用于精密量具（块规、样板）、小型冲压模、冷作模具及机床丝杆等结构件，尤其适合制作厚度小于3mm的冲裁模和高精度塑料模具，淬硬处理后模具寿命可达80万次以上。其淬透性和耐磨性优于碳素工具钢，但回火稳定性和韧性较CrWMn钢稍低。中文名模具钢
外文名
别    名模具钢
类    型产品

目录
1简介▪产品主要特点▪特性▪用途2理化性能▪化学成份▪力学性能▪热处理工艺3加工处理▪深冷处理▪加硬处理▪国外近似钢号4典型应用举例
简介
播报编辑产品主要特点由于模具钢中含有一定量的钒，细化了晶粒，减小了过热敏感性。9mn2v图片模具钢可在硝盐、热油等冷却能力较为缓和的淬火介质中淬火。合金工具钢：标准：GB/T 1299-1985特性冷作模具钢，钢是一种综合力学性能比碳素工具钢好的低合金工具钢，是合金工具钢中惟一不含Ni、Cr元素的经济型钢种，在我国已有较长应用历史，积累了丰富的使用经验，它具有较高的硬度和耐磨性。淬火时变形较小，淬透性很好。由于钢中含有一定量的钒，细化了晶粒，减小了钢的过热敏感性。同时碳化物较细小和分布均匀。冷作模具钢，是具有比碳素工具钢有较好的综合机械性能的低合金工具。具有较高的硬度和耐磨性，淬透性也较好，淬火时变形小。适于制作小型冷作模具，特别适用制作各种要求变形小、耐磨性高的精密量具(如样板、块规、量规等) 以及精密丝杆、磨床主轴等。用途钢适于制造各种精密量具、样板，也用于一般要求的尺寸比较小的冲模及冷压模、雕刻模、落料模等，还可以做机床的丝杆等结构件。冷作模具钢，钢的淬透性、淬火回火的硬度、耐磨性、强度均比Cr12高。用于制造截面较大、形状复杂、工作条件繁重下的各种冷冲模具和工具，如冲孔凹模、切边模、滚边模、钢板 深拉伸模、圆锯、标准工具和量规、螺纹滚模等。
理化性能
播报编辑化学成份碳 C ：0.85～0.95硅 Si：≤0.40锰 Mn：1.70～2.00硫 S ：≤0.030磷 P ：≤0.030钴 Co：≤1.00 [1]力学性能硬度 ：退火,≤229HB,压痕直径≥4.0mm;淬火,≥62HRC热处理规范及金相组织热处理规范：淬火,780～810℃油冷。●交货状态：钢材以退火状态交货。热处理工艺淬火推荐的淬火规范淬火温度/℃冷却介质硬度（HRC）780~820油≥62●回火钢推荐的回火规范回火温度/℃冷却介质硬度（HRC）150~200空气60~62
加工处理
播报编辑深冷处理9mn2v钢经深冷处理， 深冷处理可使淬火马氏体析出高度弥散的超微细碳化物， 随后进行200℃低温回火后， 这些超微细碳化物可转变为 碳化物。未经深冷处理的马氏体， 在低温周火后， 仅在某些局部区域析出有少量的 碳化物。 　9mn2v采用低温化学热处理方法, 在保持　9mn2v钢高硬度和高耐磨性的基础上,离子渗氮、气体氮碳共渗、盐浴硫氰共渗种常用的低温化学热处理渗层的粘着抗力。3种低温化学热处理渗层均有显若的抗冲击粘着作用, 其中尤以盐浴硫氰共渗最佳。　9mn2v钢制不锈钢器皿拉伸模经气体氮碳共渗处理后, 使用寿命达3万件以上, 较常规淬火、回火处理的同类模具寿命提高10倍以上。加硬处理为提高模具寿命达到80万模次以上，可对预硬钢实施淬火加低温回火的加硬方式来实现。淬火时先在500-600℃预热2-4小时，然后在850-880℃保温一定时间（至少2小时），放入油中冷却至50-100℃出油空冷，淬火后硬度可达50-52HRC，为防止开裂应立即进行200℃低温回火处理，回火后，硬度可保持48HRC以上国外近似钢号90MnV2（ISO）,O2(美国ASTM),T31502(美国UNS),90MnV8（欧共体EN），105WCr1(ISO),SKS31(日本JIS),STS31（韩国KS），107WCr5（欧共体EN），105WCr6（德国DIN）。
典型应用举例
播报编辑(1) 用于制作材料厚度＜3mm的冲裁模零件,制作凸摸时推荐硬度58 ~62HRC, 制作凹模时推荐硬度60 ~64HRC。(2) 可用于冲裁模具, 当生产批量＜10万件时，被冲材料厚度＜1mm 的软态低碳钢板时。还可用于弯曲模具, 被折弯曲⼯件碳的质分数为0.65% ~0.80%、硬度为37 ~42HRC时,弯曲模具使用寿命为6 万~7 万件。(3) 适用于制作各种变形小、耐磨性好的精密样板、块规、量具(4) 适于制作厚度小于6mm 的小型冲压模具等。(5)可用于剪刀、丝锥、板牙和铰刀等。(6) 该钢淬火、低温回火后硬度≤55HRC, 用于制品生产批量小, 强度、耐性要求高的模具。(7) 一般要求的尺寸较高的冲模、冷压模、刻模、塑料模。(8) 轻⾦属压铸模具。（9）用于制作淬火硬度为46~52HRC的热固性塑料模具(10) ⼩型芯、凸模、型腔板、镶件等。(11) 用于整体淬硬型塑料模具。(12) 主要用于制作尺寸较小、形状较复杂和精度较高的塑料模。(13) 热固性塑料成型模, 要求高耐磨、高强度的模具。(14) 采用调质球化一步法工艺代替原传统工艺(正火+球化退火+调质工艺), 用于冷冲压模具等, 工艺流程时间缩短10h, 成本降低50%, 节约能源。新手上路成长任务编辑入门编辑规则本人编辑我有疑问内容质疑在线客服官方贴吧意见反馈投诉建议举报不良信息未通过词条申诉投诉侵权信息封禁查询与解封©2025 Baidu 使用百度前必读 | 百科协议 | 隐私政策 | 百度百科合作平台 | 京ICP证030173号 京公网安备11000002000001号window.PAGE_DATA= 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9Mn2V模具钢与碳素工具钢相比，具有较高的硬度和耐磨性，淬透性很好，淬火时变形较小。由于9Mn2V模具钢中含有一定量的钒，细化了晶粒，减小了过热敏感性。9Mn2V模具钢可在硝盐、热油等冷却能力较为缓和的淬火介质中淬火。合金工具钢：9Mn2V标准：GB/T 1299-1985特性9Mn2V冷作模具钢，9Mn2V钢是一种综合力学性能比碳素工具钢好的低合金工具钢，是合金工具钢中惟一不含Ni、Cr元素的经济型钢种，在我国已有较长应用历史，积累了丰富的使用经验，它具有较高的硬度和耐磨性。淬火时变形较小，淬透性很好。由于钢中含有一定量的钒，细化了晶粒，减小了钢的过热敏感性。同时碳化物较细小和分布均匀。冷作模具钢，是具有比碳素工具钢有较好的综合机械性能的低合金工具。具有较高的硬度和耐磨性，淬透性也较好，淬火时变形小。适于制作小型冷作模具，特别适用制作各种要求变形小、耐磨性高的精密量具(如样板、块规、量规等) 以及精密丝杆、磨床主轴等。用途9Mn2V钢适于制造各种精密量具、样板，也用于一般要求的尺寸比较小的冲模及冷压模、雕刻模、落料模等，还可以做机床的丝杆等结构件。冷作模具钢，钢的淬透性、淬火回火的硬度、耐磨性、强度均比Cr12高。用于制造截面较大、形状复杂、工作条件繁重下的各种冷冲模具和工具，如冲孔凹模、切边模、滚边模、钢板 深拉伸模、圆锯、标准工具和量规、螺纹滚模等。理化性能化学成份碳 C ：0.85～0.95硅 Si：≤0.40锰 Mn：1.70～2.00硫 S ：≤0.030磷 P ：≤0.030钴 Co：≤1.00[1] 力学性能硬度 ：退火,≤229HB,压痕直径≥4.0mm;淬火,≥62HRC热处理规范及金相组织热处理规范：淬火,780～810℃油冷。●交货状态：钢材以退火状态交货。典型应用举例1) 用于制作材料厚度<3mm的冲裁模零件,制作凸摸时推荐硬度58 ~62HRC, 制作凹模时推荐硬度60 ~64HRC。2) 可用于冲裁模具, 当生产批量<10万件时，被冲材料厚度<1mm 的软态低碳钢板时。还可用于弯曲模具, 被折弯曲?件碳的质分数为0.65% ~0.80%、硬度为37 ~42HRC时,弯曲模具使用寿命为6 万~7 万件。3) 适用于制作各种变形小、耐磨性好的精密样板、块规、量具4) 适于制作厚度小于6mm 的小型冲压模具等。5〕可用于剪刀、丝锥、板牙和铰刀等。6) 该钢淬火、低温回火后硬度≤55HRC, 用于制品生产批量小, 强度、耐性要求高的模具。7) 一般要求的尺寸较高的冲模、冷压模、刻模、塑料模。8) 轻?属压铸模具。9）用于制作淬火硬度为46~52HRC的热固性塑料模具10) ?型芯、凸模、型腔板、镶件等。11) 用于整体淬硬型塑料模具。12) 主要用于制作尺寸较小、形状较复杂和精度较高的塑料模。13) 热固性塑料成型模, 要求高耐磨、高强度的模具。14) 采用调质球化一步法工艺代替原传统工艺(正火+球化退火+调质工艺), 用于冷冲压模具等, 工艺流程时间缩短10h, 成本降低50%, 节约能源。