<p> <span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Q215A</span></p> <p> <span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">是一种钢材的材质。Q代表的是这种材质的屈服度，后面的215，就是指这种材质的屈服值，在215左右。并会随着材质的厚度的增加而使其屈服值减小。由于含碳适中，综合性能较好，强度、塑性和焊接等性能得到较好配合，用途最广泛。</span></p> <p> &nbsp;</p> <h3 class="headline-2" style="margin: 20px 0px 12px; padding: 0px; font-size: 18px; font-family: 'Microsoft YaHei', SimHei, Verdana; line-height: 19px; clear: both; font-weight: 500; color: rgb(0, 0, 0);"> <span class="headline-content">化学成分</span></h3> <h3 class="headline-2" style="margin: 20px 0px 12px; padding: 0px; font-size: 18px; font-family: 'Microsoft YaHei', SimHei, Verdana; line-height: 19px; clear: both; font-weight: 500; color: rgb(0, 0, 0);"> &nbsp; &nbsp;<a href="http://baike.baidu.com/view/39160.htm" style="font-family: arial, 宋体, sans-serif; font-size: 14px; line-height: 24px; text-indent: 2em; text-decoration: none; color: rgb(19, 110, 194);" target="_blank">硫</a><span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; font-size: 14px; line-height: 24px; text-indent: 2em;">S ：&le;0.050</span></h3> <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;0.045</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>Cr：允许残余含量&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/38977.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">镍</a>Ni：允许残余含量&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/36056.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">铜</a>&nbsp;Cu：允许残余含量&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;"> 注：脱氧方法:F、b、Z</div> <h3 class="headline-2" style="margin: 20px 0px 12px; padding: 0px; font-size: 18px; font-family: 'Microsoft YaHei', SimHei, Verdana; line-height: 19px; clear: both; font-weight: 500; color: rgb(0, 0, 0);"> <span class="headline-content">力学性能</span></h3> <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;"> 抗拉强度 &sigma;b (MPa)：335-450</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/72126.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">屈服强度</a>&nbsp;&sigma;s (MPa)：&le;16时:&ge;215;</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;"> 屈服强度 &sigma;s (MPa&gt; 16～40时:&ge;205;</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;"> 屈服强度 &sigma;s (MPa&gt; 40～60时: &ge;195;</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;"> 屈服强度 &sigma;s (MPa&gt;60～100 时: &ge;185;</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;"> 屈服强度 &sigma;s (MPa&gt; 100～150 时: &ge;175;</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;"> 屈服强度 &sigma;s (MPa&gt;150时: &ge;165</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;"> 伸长率 &delta;5 (%)：&le;16时:&ge;31</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;"> 伸长率 &delta;5 (%);&gt;16～40时;:&ge;30</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;"> 伸长率 &delta;5 (%);;&gt;40～60时:&ge;29;</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;"> 伸长率 &delta;5 (%);&gt;60～100时:&ge;28;</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;"> 伸长率 &delta;5 (%);&gt;100～150时:&ge;27;</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;"> 伸长率 &delta;5 (%);&gt;150时:&ge;20</div> <h3 class="headline-2" style="margin: 20px 0px 12px; padding: 0px; font-size: 18px; font-family: 'Microsoft YaHei', SimHei, Verdana; line-height: 19px; clear: both; font-weight: 500; color: rgb(0, 0, 0);"> <span class="headline-content">热处理工艺</span></h3> <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;"> 试样尺寸：试样厚度(直径)热处理规范及金相组织</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;"> 交货状态：一般以热轧（包括控轧）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;"> 根据需方要求，经双方协议，也可以正火处理状态交货</div> <h3 class="headline-2" style="margin: 20px 0px 12px; padding: 0px; font-size: 18px; font-family: 'Microsoft YaHei', SimHei, Verdana; line-height: 19px; clear: both; font-weight: 500; color: rgb(0, 0, 0);"> <span class="headline-content">冷弯性能</span></h3> <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;"> 180&deg; 冷弯试验</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;"> d=0.5a （纵向）d=a（横向）(B=2a: 60mm），d=1.5a （纵向）d=2a（横向）(B=2a: &gt;60～100mm）</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;"> d=2a （纵向）d=2.5a（横向）(B=2a: &gt;100～200mm）</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;"> 其中d 为弯心直径，B 为试样宽度，a 为钢材厚度或直径。</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;"> 【冲击试验】</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;"> 温度：20℃</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;"> V型<a href="http://baike.baidu.com/view/499396.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">冲击吸收功</a>（纵向）Ak/J：≧27</div>