<table quot;width: 720px;" border="1" cellspacing="0" cellpadding="0"> <tbody> <tr height="19"> <td quot;border-top: black 0.5pt solid; border-left: black 0.5pt solid; border-bottom: black 0.5pt solid; background-color: #3366ff; border-right-color: #ffffff;" width="66" height="19"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">合得奖号</span></span></strong></td> <td quot;background-color: yellow; border: black 0.5pt solid;" colspan="15" width="654"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">化 学  成  分，wt%</span></span></strong></td> </tr> <tr height="19"> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #99ccff;" rowspan="2" width="66" height="38"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">AA</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="51"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Si</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="51"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Fe</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="52"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Cu</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Mn</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="44"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Mg</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Cr</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Ni</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Zn</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Ca</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">V</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="66"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">其它</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" rowspan="2" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Ti</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-top: black 0.5pt solid; border-left-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" colspan="2" width="78"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">杂质</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-bottom-color: #ffffff; border-top-color: black; background-color: #ffff99;" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">Al</span></span></strong></td> </tr> <tr height="19"> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" width="39" height="19"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">单个</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: #ffff99;" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">总和</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: #ffffff; border-bottom: black 0.5pt solid; background-color: #ffff99;" width="39"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">min</span></span></strong></td> </tr> <tr height="20"> <td quot;border-right: black 0.5pt solid; border-left: black 0.5pt solid; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="66" height="20"><strong><span quot;font-size: 14pt;"><span quot;color: #0000ff;">2124</span></span></strong></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="51"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">0.2</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="51"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">0.3</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="52"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">3.8-4.9</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">0.30-0.9</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="44"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">1.2-1.8</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">0.1</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">—</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">0.25</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">—</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">—</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="66"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">(k)</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">0.15</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">0.05</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">0.15</span></span></td> <td quot;border-right: black 0.5pt solid; border-left-color: black; border-top-color: black; border-bottom: black 0.5pt solid; background-color: transparent;" width="39"><span quot;font-size: 14pt;"><span quot;color: #0000ff;">余量</span></span></td> </tr> <tr height="20"> <td quot;border-right: black 0.5pt solid; border-top: black 0.5pt solid; border-left-color: #ffffff; border-bottom: black 0.5pt solid; background-color: transparent;" colspan="16" height="20"><span quot;font-size: 14pt;"><span quot;color: #0000ff;"> 航空航天器结构件</span></span></td> </tr> </tbody> </table> <p><span quot;font-size: 14pt;"><span quot;color: #0000ff;"> 2024为铝－铜－镁系中的典型硬铝合金，其成份比较合理，综合性能较好，是硬铝中用量非常大的。该合金的特点是：强度高，有一定的耐热性，可用作150°C以下的工作零件。温度高于125°C，2024合金的强度比7075合金的还高。热状态、退火和新淬火状态下成形性能都比较好，热处理强化效果显著，但热处理工艺要求严格。抗蚀性较差，但用纯铝包覆可以得到有效保护；焊接时易产生裂纹，但采用特殊工艺可以焊接，也可以铆接。广泛用于飞机结构、铆钉、卡车轮毂、螺旋桨元件及其他种种结构件。<br /><br />　　（厚度：1＿165ＭＭ）硬度HB＝120密度p＝2850kg/m³<br /></span></span></p>