东莞市冠易金属制品有限公司

主营:不锈钢,模具钢,铜合金,钨钢,铝合金,弹簧钢,合金钢,轴承钢

供应7075铝镁铝棒7072铝棒

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<p><span FONT-FAMILY: 宋体“>一、</span>7075<span FONT-FAMILY: 宋体“>铝棒</span></p>
<p>7075<span FONT-FAMILY: 宋体“>铝板属</span>Al-Zn-Mg-Cu<span FONT-FAMILY: 宋体“>系超硬铝,</span>7075<span FONT-FAMILY: 宋体“>合金是</span>20<span FONT-FAMILY: 宋体“>世纪</span>40<span FONT-FAMILY: 宋体“>年代末期就已应用于飞机制造业,至今仍在航空工业上得到广泛应用的非常高度度变形铝合金。其特点是,固溶处理后塑性好,热处理强化效果特别好,在</span>150<span FONT-FAMILY: 宋体“>℃以下有高的强度,并且有特别好的低温强度;焊接性能差;有应力腐蚀开裂倾向;需经包铝或其他保护处理使用。双级时效可提高合金抗应力腐蚀开裂的能力。在退火和刚淬火状态下的塑性稍低于同样状态的</span>2A12.<span FONT-FAMILY: 宋体“>稍优于</span>7A04<span FONT-FAMILY: 宋体“>,板材的静疲劳</span>.<span FONT-FAMILY: 宋体“>缺口敏感,应力腐蚀性能优于</span>7A04<span FONT-FAMILY: 宋体“>,其中以</span>7075T651<span FONT-FAMILY: 宋体“>尤为上品,被誉为铝合金中较优良的产品,强度高,远胜于软钢。此合金具有良好的机械性能及阳较反应,是典型的航空用铝。</span></p>
<p><span FONT-FAMILY: 宋体“>二、化学成分</span></p>
<p><span FONT-FAMILY: 宋体“>硅</span>Si<span FONT-FAMILY: 宋体“>:</span>0.40<span FONT-FAMILY: 宋体“>铁</span>Fe: 0.50</p>
<p><span FONT-FAMILY: 宋体“>  铜</span>Cu<span FONT-FAMILY: 宋体“>:</span>1.2-2.0</p>
<p><span FONT-FAMILY: 宋体“>  锰</span>Mn<span FONT-FAMILY: 宋体“>:</span>0.30</p>
<p><span FONT-FAMILY: 宋体“>  镁</span>Mg<span FONT-FAMILY: 宋体“>:</span>2.1-2.9</p>
<p><span FONT-FAMILY: 宋体“>  铬</span>Cr<span FONT-FAMILY: 宋体“>:</span>0.18-0.28</p>
<p><span FONT-FAMILY: 宋体“>  锌</span>Zn<span FONT-FAMILY: 宋体“>:</span>5.1-6.1</p>
<p><span FONT-FAMILY: 宋体“>  钛</span>Ti<span FONT-FAMILY: 宋体“>:</span>0.20</p>
<p><span FONT-FAMILY: 宋体“>  铝</span>Al<span FONT-FAMILY: 宋体“>:余量</span></p>
<p><span FONT-FAMILY: 宋体“>  其他:</span></p>
<p><span FONT-FAMILY: 宋体“>  单个:</span>0.05<span FONT-FAMILY: 宋体“>合计:</span>0.15</p>
<p><span FONT-FAMILY: 宋体“>三、力学性能</span></p>
<p><span FONT-FAMILY: 宋体“>抗拉强度</span>Mpa 524</p>
<p><span FONT-FAMILY: 宋体“>屈服强度</span>Mpa 462</p>
<p><span FONT-FAMILY: 宋体“>伸长率</span> 11</p>
<p><span FONT-FAMILY: 宋体“>体膨胀系数</span>m3(.m3.k)<span FONT-FAMILY: 宋体“>ˉ</span>1 68*10<span FONT-FAMILY: 宋体“>ˉ</span>6</p>
<p>20<span FONT-FAMILY: 宋体“>℃体积电导率</span>IACS 33</p>
<p>20<span FONT-FAMILY: 宋体“>℃电阻率</span>N<span FONT-FAMILY: 宋体“>Ω</span>.M 52.2</p>
<p><span FONT-FAMILY: 宋体“>弹性模量</span>E/Gpa 71</p>
<p><span FONT-FAMILY: 宋体“>硬度</span>HB 150</p>
<p><span FONT-FAMILY: 宋体“>密度</span>kg.m<span FONT-FAMILY: 宋体“>ˉ</span>1 2810</p>
<p><span FONT-FAMILY: 宋体“>本标准规定了变形铝合金的状态代号。</span></p>
<p><span FONT-FAMILY: 宋体“>本标准适用于铝及铝加工产品。</span></p>
<p>2.<span FONT-FAMILY: 宋体“>基本原则</span></p>
<p>2.1<span FONT-FAMILY: 宋体“>基础状态代号用一个英文大写字母表示。</span></p>
<p>2.2<span FONT-FAMILY: 宋体“>细分状态代号采用基础状态代号后跟一位或多位阿拉伯数字表示。</span></p>
<p>2.3<span FONT-FAMILY: 宋体“>基本状态代号</span></p>
<p><span FONT-FAMILY: 宋体“>基本状态分为</span>5<span FONT-FAMILY: 宋体“>种</span></p>
<p><span FONT-FAMILY: 宋体“>代号</span><span FONT-FAMILY: 宋体“>名称</span><span FONT-FAMILY: 宋体“>说明与应用</span></p>
<p>F<span FONT-FAMILY: 宋体“>自由加工状态</span><span FONT-FAMILY: 宋体“>适用于在成型过程中,对于加工硬化和热处理条件特殊要求的产品,该状态产品的力学性能不作规定。</span></p>
<p>O<span FONT-FAMILY: 宋体“>退火状态</span><span FONT-FAMILY: 宋体“>适用于经完全退火获得较低强度的加工产品。</span></p>
<p>H<span FONT-FAMILY: 宋体“>加工硬化状态</span><span FONT-FAMILY: 宋体“>适用于通过加工硬化提高度度的产品,产品在加工硬化后可经过(也可不经过)使强度有所降低的附加热处理。</span></p>
<p>W<span FONT-FAMILY: 宋体“>固熔热处理状态</span><span FONT-FAMILY: 宋体“>处理状态</span><span FONT-FAMILY: 宋体“>一种不稳定状态,仅适用于经固溶热处理后,室温下自然时效的合金,该状态代号仅表示产品处于自然时效阶段。</span></p>
<p>T<span FONT-FAMILY: 宋体“>热处理状态</span>(<span FONT-FAMILY: 宋体“>不同于</span>F<span FONT-FAMILY: 宋体“>、</span>O<span FONT-FAMILY: 宋体“>、</span>H<span FONT-FAMILY: 宋体“>状态</span>)<span FONT-FAMILY: 宋体“>适用于热处理后,经过(或不经过)加工硬化达到稳定的产品。</span>T<span FONT-FAMILY: 宋体“>代号后面必须跟有一位或多位阿拉伯数字。</span></p>

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