<div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 1Cr17Ni2系是<a href="http://baike.baidu.com/subview/24758/24758.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">马氏体</a>不锈钢中强度与韧性搭配较好的一种<a href="http://baike.baidu.com/subview/2361732/2361732.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">钢种</a>。它对<a href="http://baike.baidu.com/subview/640909/640909.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">氧化性酸</a>、大部分有机酸以及有机盐类的水溶液有良好的耐蚀性。一般适用于制造<a href="http://baike.baidu.com/view/48841.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">硝酸</a>，醋酸的生产和轻工，纺织等工业中的既要要求强韧性又耐腐蚀的轴，<a href="http://baike.baidu.com/subview/3517404/3517404.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">活塞杆</a>，泵等零件。</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 1Cr17Ni2钢是低碳铬镍型<a href="http://baike.baidu.com/view/8979508.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">耐蚀钢</a>, 具有较高的强度和硬度。对氧化性的酸类 (一定温度、浓度的硝酸、大部分的有机酸), 以及有机酸水溶液都有良好的耐蚀性.&nbsp;<a href="http://baike.baidu.com/subview/5640800/5684296.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">亚温淬火</a>能有效地抑制该钢的高温<a href="http://baike.baidu.com/view/145442.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">回火</a>脆性。可以使钢的脆性转化温度降低, 韧性得到改善, 断口形貌由准<a href="http://baike.baidu.com/subview/65006/65006.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">解理</a>型变为韧窝型, 合金元素向基体和&delta;-<a href="http://baike.baidu.com/subview/7557/7557.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">铁素体</a>中的富集程度增大,在改善钢韧性的同时仍保持较高的强度水平。但该钢焊接性能不好, 易<a href="http://baike.baidu.com/subview/13987157/14561764.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">产生裂纹</a>, 因此制造具时, 不宜进行焊接。<a class="anchor-inline" name="ref_[1]_2847293" style="color: rgb(19, 110, 194); position: relative; display: inline; top: -50px; font-size: 0px; line-height: 0;">&nbsp;</a> <div class="lemma-picture text-pic layout-right" style="border: 1px solid rgb(224, 224, 224); overflow: hidden; text-indent: 0px; margin: 0px 0px 3px 20px; position: relative; float: right; clear: right; width: 220px;"> <a class="image-link nslog:9317" href="http://baike.baidu.com/picture/2847293/2847293/0/3ac79f3df8dcd1006a4b3fea738b4710b8122f22.html?fr=lemma&amp;ct=single" style="text-decoration: none; color: rgb(19, 110, 194); display: block; width: 220px; height: 148px;" target="_blank" title="1Cr17Ni2"><img alt="1Cr17Ni2" src="http://a.hiphotos.baidu.com/baike/s%3D220/sign=233446748d5494ee8322081b1df7e0e1/3ac79f3df8dcd1006a4b3fea738b4710b8122f22.jpg" style="border: 0px; display: block; margin: 0px auto; width: 220px; height: 148px;" /></a><span class="description" style="display: block; color: rgb(85, 85, 85); font-size: 12px; font-family: 宋体; word-wrap: break-word; word-break: break-all; line-height: 15px; padding: 8px 7px; min-height: 12px; border-top-width: 1px; border-top-style: solid; border-top-color: rgb(224, 224, 224);">1Cr17Ni2</span></div> </div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 当锻造加热温度较高时, 虽然钢的&alpha;-相增多, 但塑性良好, 这与部分组织强烈的<a href="http://baike.baidu.com/subview/533282/533282.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">再结晶</a>有关。该钢在1100&deg;C时的<a href="http://baike.baidu.com/subview/499391/499391.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">伸长率</a>最大。为了改善钢的<a href="http://baike.baidu.com/view/337753.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">塑性</a>和表面质量, 应使停锻、停轧温度偏高一些; 同时, 为了得到均一的组织, 应该采取较大的<a href="http://baike.baidu.com/subview/2948133/2948133.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">锻造比</a>。<span style="background-color: rgb(81, 156, 234); color: rgb(255, 255, 255); font-size: 16px; line-height: 24px; text-align: center; font-family: 'Microsoft YaHei', SimHei, Verdana;">2</span></div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 化学成分：</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a href="http://baike.baidu.com/view/23998.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">碳</a>&nbsp;C ：0.11～0.17</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a href="http://baike.baidu.com/subview/4748/5033687.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">硅</a>&nbsp;Si：&le;0.80</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a href="http://baike.baidu.com/view/37938.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">锰</a>&nbsp;Mn：&le;0.80 <div class="lemma-picture text-pic layout-right" style="border: 1px solid rgb(224, 224, 224); overflow: hidden; text-indent: 0px; margin: 0px 0px 3px 20px; position: relative; float: right; clear: right; width: 220px;"> <a class="image-link nslog:9317" href="http://baike.baidu.com/picture/2847293/2847293/0/8605f5f8250ba94ad9f9fdaa.html?fr=lemma&amp;ct=single" style="text-decoration: none; color: rgb(19, 110, 194); display: block; width: 220px; height: 165px;" target="_blank" title="1Cr17Ni2马氏体不锈钢"><img alt="1Cr17Ni2马氏体不锈钢" src="http://h.hiphotos.baidu.com/baike/s%3D220/sign=c9448bc8a9773912c0268263c8198675/3c6d55fbb2fb43165265b70f20a4462309f7d349.jpg" style="border: 0px; display: block; margin: 0px auto; width: 220px; height: 165px;" /></a><span class="description" style="display: block; color: rgb(85, 85, 85); font-size: 12px; font-family: 宋体; word-wrap: break-word; word-break: break-all; line-height: 15px; padding: 8px 7px; min-height: 12px; border-top-width: 1px; border-top-style: solid; border-top-color: rgb(224, 224, 224);">1Cr17Ni2马氏体不锈钢</span></div> 硫 S ：&le;0.030</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a href="http://baike.baidu.com/view/39167.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">磷</a>&nbsp;P ：&le;0.035</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a href="http://baike.baidu.com/view/39052.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">铬</a>&nbsp;Cr：16.00～18.00</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a href="http://baike.baidu.com/view/38977.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">镍</a>&nbsp;Ni：1.50～2.50</div> <div class="anchor-list" style="position: relative; clear: both; color: rgb(0, 0, 0); font-family: arial, 宋体, sans-serif; font-size: 14px; line-height: 24px;"> &nbsp;</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 力学性能：</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <b>热处理规范及金相组织</b></div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 热处理规范：1)退火,680～700℃<a href="http://baike.baidu.com/subview/543204/543204.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">高温回火</a>空冷;2)淬火,950～1050℃油冷;3)<a href="http://baike.baidu.com/subview/145442/14383113.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">回火</a>275～350℃空冷。</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 金相组织：组织特征为<a href="http://baike.baidu.com/subview/560376/560376.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">马氏体型</a>。</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> ●<a href="http://baike.baidu.com/subview/2751764/2751764.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">交货状态</a>：一般以热处理状态交货，其热处理种类在合同中注明；未注明者，按不热处理状态交货。</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <span style="font-size: 14px; line-height: 24px; text-indent: 2em;">对应日本牌号：</span><a href="http://baike.baidu.com/subview/6522006/6639102.htm" style="font-size: 14px; line-height: 24px; text-indent: 2em; text-decoration: none; color: rgb(19, 110, 194);" target="_blank">SUS431</a></div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 对应德国牌号：X22CrNi17</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 对应美国牌号：431</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 对应英国牌号：431S29</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 物理性能：</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 1)<a href="http://baike.baidu.com/subview/158821/158821.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">临界点</a>温度 (近似值)：Ac1=810&deg;C、 Ar1=780&deg;C、Ms=357&deg;C。<br /> 　　2)<a href="http://baike.baidu.com/view/38960.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">密度</a>：7.75g/cm3<br /> 　　3)质量定压<a href="http://baike.baidu.com/subview/732601/732601.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">热容</a>: 459.8J/ (kg&middot;K)。<br /> 　　4)<a href="http://baike.baidu.com/view/30660.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">弹性模量</a>&nbsp;(20&deg;C): 210000MPa。<br /> 　　5)<a href="http://baike.baidu.com/subview/42894/42894.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">电阻率</a>: 0.70&times;10-6&Omega;&middot;m<br /> 　　6)<a href="http://baike.baidu.com/view/825014.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">线胀系数</a>: 温度20-100&deg;C /20~200&deg;C/20~300&deg;C/20~400&deg;C/20~500&deg;C, 线胀系数: 10.0&times;10-6K-1/10.0&times;10-6K-1/11.0&times;10-6K-1/11.0&times;10-6K-1/11.0&times;10-6K-1。<br /> 　　7)&nbsp;<a href="http://baike.baidu.com/view/748593.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">热导率</a>: 温度 20&deg;C/100&deg;C/200&deg;C/300&deg;C /400&deg;C/500&deg;C/600&deg;C/700&deg;C/800&deg;C /900&deg;C, 热导率20.9[w/(m&middot;K)]/21.7[w/(m&middot;K)]/22.6[w/(m&middot;K)]/23.4[w/(m&middot;K)]/24.2[w/(m&middot;K)]/25.1[w/(m&middot;K)]/25.9[w/(m&middot;K)]/26.7[w/(m&middot;K)]/28.0[w/(m&middot;K)]/29.7[w/(m&middot;K)]。</div>