<h1 class="title"><span quot;font-size: large;">7075-T651铝板</span></h1> <p><span quot;font-size: large;"> <script></script> </span></p> <div class="clear"></div> <div id="lemmaContent-0" class="lemma-main-content"><span quot;font-size: large;">　　7075-T651铝板被誉为铝合金中较优良的产品。T651表示此合金经过热处理和预拉伸工艺，T6和T651合金具有572MPa的拉伸强度和503MPa的屈服强度.同时7075合金有着良好的机械性能和阳较氧化性能.美国ASTM标准度工会评价7075合金为B类机械性能,因起能产生蜷曲或易断之屑片,和优良的表面处理. </span><span quot;font-size: large;">　　7075-T651机械性能: </span><span quot;font-size: large;">　　热膨胀系数(20-100℃)um/m.k:23.6,熔点范围(℃):475-635,电导率20℃(68°F)(％ACS):33,电阻率20℃(68°F)m㎡/m:0.0515 </span><span quot;font-size: large;">　　7075-T651化学成份: </span><span quot;font-size: large;">　　钛(Ti) :0.2 </span><span quot;font-size: large;">　　硅(Si) :0.4 </span><span quot;font-size: large;">　　锰(Mn) :0.3 </span><span quot;font-size: large;">　　镁(Mg) :2.1-2.9 </span><span quot;font-size: large;">　　铁(Fe) :0.5 </span><span quot;font-size: large;">　　铬(Cr) :0.18-0.28 </span><span quot;font-size: large;">　　锌(Zn) :5.1-6.1 </span><span quot;font-size: large;">　　铜(Cu) :1.2-20 </span><span quot;font-size: large;">　　铝(较小)(Al) :余量 </span><span quot;font-size: large;">　　其 他(每个) :0.05 </span><span quot;font-size: large;">　　其 他(总计) :0.15 </span></div>