<p><span quot;font-size: 14pt;"><span quot;font-family: simsun;">牌号：高等43</span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">特性及适用范围：</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">是低成分的Al-Mg-Mn系合金。</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">化学成份：</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">铝 Al ：余量</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">硅 Si ：≤0.40</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">铜 Cu ：≤0.10</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">镁 Mg：0.6～1.4</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">锰 Mn：0.15～0.40</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">钛 Ti ：≤0.15</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">铁 Fe： 0.000～ 0.400</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">注：单个:≤0.05;合计:≤0.15</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">力学性能：</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">抗拉强度 σb (MPa)：≤98</span></span></span></p> <p><span quot;font-size: 14pt;"><span quot;font-family: simsun;"><span quot;font-size: 14pt;">伸长率 δ10 (％)：≥15</span></span></span></p>