<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:25.5pt;font-style:normal;font-weight:bold;vertical-align:sub;">D<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:25.5pt;font-style:normal;font-weight:bold;vertical-align:sub;">2<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">D2<*n>是一种工具钢，含碳量达<*n>1.5%<*n>，含铬量达<*n>11.5%<*n>，经热处理硬度可达<*n>60HRC<*n>。它是一种半不锈钢，<*n>D2<*n>钢具有较好的*性以及适中的韧性，缺点是耐腐蚀性略显不足，是一种比较适合实用的钢材，<*n>Bob Dozier<*n>很喜欢用<*n>D-2<*n>。<*n>D2<*n>钢材高*、微变形冷作模具钢，风硬工具钢。<*n>D2<*n>钢可用来制造截面大、形状复杂、经受冲击力大、要求*性高的冷作模具钢，如硅钢片冲模、冷切剪刀、切边模等。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">综合评分：*性<*n>2.5<*n>分，韧性<*n>2.5<*n>分，耐腐蚀性<*n>2<*n>分。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">D2<*n>前端技术论坛<*n>(Designer&nb*mp; Developer Frontend Technology Forum)<*n>，简称<*n>D2<*n>，为国内前端*和网站设计师提供一个交流的机会，一起分享技术的乐趣，探讨行业的发展，以技术会友。它是中国所有前端*的节日，包括前端设计师，<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">前端开发工程师<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">，和所有对前端技术感兴趣的人。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;font-style:normal;font-weight:bold;">中文名<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;font-style:normal;font-weight:normal;">D2<*n>前端技术论坛<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;font-style:normal;font-weight:bold;">外文名<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;font-style:normal;font-weight:normal;">Designer&nb*mp; Developer Frontend Technology Forum<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;font-style:normal;font-weight:bold;">简<*n>    <*n>称<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;font-style:normal;font-weight:normal;">D2<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:16.5pt;font-style:normal;font-weight:bold;">基本信息<*n style="color:#000000;font-family:微软雅黑;font-size:16.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">D2<*n>国际上较广泛应用的高碳高铬冷作模具钢，属莱氏体钢，具有高的淬透性、淬硬性和高的*性；高温****性能好，淬火和抛光后*锈蚀能力好，热处理变形小。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:13.5pt;font-style:normal;font-weight:bold;">化学成份<*n style="color:#000000;font-family:宋体;font-size:13.5pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">化学成份：<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">（以上数据是平均值，单位<*n>%<*n>）<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:13.5pt;font-style:normal;font-weight:bold;">硬度<*n style="color:#000000;font-family:宋体;font-size:13.5pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">退火 <*n>≤255HB,<*n>压痕直径<*n>≥3.8mm<*n>；<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">淬火 <*n>≥59HRC<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:13.5pt;font-style:normal;font-weight:bold;">热处理规范<*n style="color:#000000;font-family:宋体;font-size:13.5pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">淬火<*n>,820±15℃<*n>预热，<*n>1000±6℃(<*n>盐浴<*n>)<*n>或<*n>1010±6℃(<*n>炉控气氛<*n>)<*n>加热<*n>,<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">保温<*n>10<*n>～<*n>20min,<*n>空冷，<*n>200±6℃<*n>回火。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:16.5pt;font-style:normal;font-weight:bold;">材料特性<*n style="color:#000000;font-family:微软雅黑;font-size:16.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">D2 <*n>钢是高*微变形冷作模具钢<*n>, <*n>属于风硬型工具钢。该钢碳的质量分数高达<*n>1.5%, <*n>铬的质量分数高达<*n>11.5%, <*n>经热处理后硬度可达<*n>60HRC, <*n>但相对地延展性、韧性、耐锈能力较弱，钢材表面亦难作镜面磨光处理。随着冷冲压制品朝着*、****率、多品种的发展<*n>, <*n>要求模具钢具有较好的*性和韧性。同<*n>C*MoV<*n>钢相比<*n>, <*n>该钢在化学成分上增加了<*n>Mo<*n>、 <*n>V<*n>，改变了钢的铸造*<*n>, <*n>****了菜氏体的形貌<*n>, <*n>强韧性及*性优于<*n>C*MoV<*n>钢<*n>, <*n>****了模具的使用寿命。由于该钢的屈服点及塑性变形*力较 <*n>C*MoV <*n>钢高<*n>, <*n>因而其锻造性能及热塑成形性较<*n>C*MoV <*n>钢略差。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:16.5pt;font-style:normal;font-weight:bold;">参考牌号<*n style="color:#000000;font-family:微软雅黑;font-size:16.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">中国 <*n>GB <*n>标准牌号 <*n>C*Mo1v1<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">美国 <*n>ASTM/UNS <*n>标准牌号 <*n>D2/T30402<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">*化* <*n>(ISO) <*n>标准牌号 <*n>160CrMoV12<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">德国<*n>DIN<*n>标准材料编号<*n>1.2379<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">德国<*n>DIN<*n>标准牌号 <*n>X155CrMoV12-1<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">法国 <*n>NF <*n>标准牌号 <*n>X160CrMoV12<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">英国 <*n>BS <*n>标准牌号 <*n>BD2<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">日本 <*n>JIS<*n>标准牌号<*n>SKD11<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">日本日立 <*n>(HITACHl) <*n>标准牌号<*n>SLD<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">日本大同 <*n>(DAIDO) <*n>标准牌号<*n>DC11<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">日本*越 <*n>(NACHl) <*n>标准牌号 <*n>CDS11<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">奥地利百禄 <*n>(BOHLER) <*n>标准牌号<*n>K110<*n>、<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">瑞典一胜百 <*n>(ASSAB) <*n>标准牌号 <*n>XW41<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:16.5pt;font-style:normal;font-weight:bold;">使用范围<*n style="color:#000000;font-family:微软雅黑;font-size:16.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">适用于复杂可能变形的工具钢，高*性长寿命的各类冷冲压模具及冷剪切刃，搓丝板；冷挤压成形、拉伸模、啤不锈钢片及高硬度材料的冲裁模等。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:16.5pt;font-style:normal;font-weight:bold;">典型应用<*n style="color:#000000;font-family:微软雅黑;font-size:16.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">1) <*n>用于冰箱压缩机后罩拉深模具<*n>, <*n>淬火硬度<*n>56~58HRC<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">2) <*n>为****<*n>D2<*n>冷作模具扁钢轧材的使用寿命<*n>, <*n>采用添加稀土的方法<*n>, <*n>则钢的*性和冲击韧度均大为****<*n>, <*n>从而达到****圆模具扁钢轧材使用寿命的目的。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">3) <*n>由于<*n>D2<*n>钢中的<*n>V<*n>、 <*n>Mo<*n>含量高于<*n>C*MoV<*n>钢<*n>, <*n>具有更好的综合性能<*n>, <*n>而传统的<*n>C*MoV<*n>钢将逐渐被取代。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">4) <*n>用<*n>D2<*n>钢制造的滚丝轮、离台调板冷冲模<*n>, <*n>与<*n>C*MoV<*n>钢相比可****使用寿命<*n>5 ~6 <*n>倍。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;font-style:normal;font-weight:normal;">

<*n style="font-family:Calibri;font-size:10.5pt;">