<p><span quot;font-size: large;"><span class="headline-content">5056铝合金</span>　　材料名称：5056 旧称：LF5-1标准：GB/T 3618-1989</span></p> <p><span quot;font-size: large;">　　主要特征及应用范围：在不可热处理合金中强度良好，耐蚀性.切削性良好。阳较化处理后表面美观。可加工成光学机械部件.船舶部件及导线线夹。</span></p> <p><span quot;font-size: large;">　　化学</span></p> <h2 class="headline-1 bk-sidecatalog-title"><span class="headline-content"><span quot;font-size: large;">化学成分</span></span></h2> <p><span quot;font-size: large;">　　成分：硅Si：0.30</span></p> <p><span quot;font-size: large;">　　铁Fe: 0.40</span></p> <p><span quot;font-size: large;">　　铜Cu：0.10</span></p> <p><span quot;font-size: large;">　　锰 Mn:0.05-0.20</span></p> <p><span quot;font-size: large;">　　铬Cr：0.05-0.20</span></p> <p><span quot;font-size: large;">　　镁Mg：4.5-5.6</span></p> <p><span quot;font-size: large;">　　锌Zn:0.10</span></p> <p><span quot;font-size: large;">　　铝Al：余量</span></p> <h2 class="headline-1 bk-sidecatalog-title"><span class="headline-content"><span quot;font-size: large;">力学性能</span></span></h2> <p><span quot;font-size: large;">　　其他：</span></p> <p><span quot;font-size: large;">　　单个：0.05 合计：0.15</span></p> <p><span quot;font-size: large;">　　力学性能：</span></p> <p><span quot;font-size: large;">　　抗拉强度 σb (MPa)：≥305</span></p> <p><span quot;font-size: large;">　　注 ：管材室温力学性能</span></p> <p><span quot;font-size: large;">　　试样尺寸：壁厚/mm （所有）</span></p> <p><span quot;font-size: large;">　　状态：铝及铝合金拉(轧)制无缝管 (H32)</span></p>