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个人中心7075播报讨论上传视频7系铝合金中的合金收藏查看我的收藏0有用+107075，指的是7系铝合金中的一种常用的合金，执行标准为GB/T3880.2--2012。中文名7075
理算密度2.85
执行标准GB/T3880.2--2012
类    型铝合金

目录
1简介2化学成分3产品特点4主要用途5状态代号▪范围▪基本原则6机械性能7计算公式8对应牌号9现货规格 10理论计算公式
简介
播报编辑7075铝板7075指的是7系铝合金中的一种常用的合金，比较常见的铝合金中强度最好的就是7075合金，普遍用在CNC切削制造的零部件，适合飞机构架及高强度配件。7系铝合金包含有锌和镁元素。锌在这系列中是主要合金元素，所以抗腐蚀性相当好，加上少许镁合金可使材料能受热处理后达到非常高的强度。7系铝合金属Al-Zn-Mg-Cu系超硬铝，该合金是20世纪40年代末期就已应用于飞机制造业，仍在航空工业上得到广泛应用的超高强度变形铝合金。其特点是，固溶处理后塑性好，热处理强化效果特别好，在150℃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2A12.稍优于7A04，板材的静疲劳.缺口敏感，应力腐蚀性能优于7A04.密度为2.85g/cm3。
化学成分
播报编辑-化学成分/%,不大于其他杂质/%,不大于-合金牌号硅Si铁Fe铜Cu锰Mn镁Mg铬Cr锌Zn钛Ti单个总 和铝Al7075≤0.4≤0.51.2-2.0≤0.32.1-2.90.18-0.285.1-6.1≤0.20.050.15余量
产品特点
播报编辑1.高强度可热处理合金。2.良好机械性能。3.可使用性好。4.易于加工，耐磨性好。5.T7351状态增强了抗腐蚀断裂性6.用于高压结构零件的高强度材料。7075材料一般都加入少量铜、铬等合金该系当中以A7075-铝合金尤为上品，被誉为铝合金中最优良的产品，强度高、远胜任何软钢。此合金并具有良好机械性及阳极反应。代表用途有航空航天、模具加工、机械设备、工装夹具，特别用于制造飞机结构及其他要求强度高、抗腐蚀性能强的高应力结构体
主要用途
播报编辑航空固定装置，卡车，塔式建筑，船，管道及其他需要有强度的建筑上的应用的领域。如：飞机零部件、齿轮和轴、熔丝零件、仪表轴和齿轮、导弹零件跳进阀零件、涡轮、钥匙、飞机、航空及国防应用。
状态代号
播报编辑范围本标准规定了变形铝合金的状态代号。本标准适用于铝及铝加工产品。基本原则2.1基础状态代号用一个英文大写字母表示。 　2.2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。 　2.3基本状态代号 　基本状态分为5种 　代号 名称 说明与应用 　F 自由加工状态 适用于在成型过程中，对于加工硬化和热处理条件无特殊要求的产品，该状态产品的力学性能不作规定。 　O 退火状态 适用于经完全退火获得最低强度的加工产品。 　H 加工硬化状态 适用于通过加工硬化提高强度的产品，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。 　W 固熔热处理状态 处理状态 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。 　T 热处理状态(不同于F、O、H状态) 适用于热处理后，经过（或不经过）加工硬化达到稳定的产品。T代号后面必须跟有一位或多位阿拉伯数字。在T字后面的第一位数字表示热处理基本类型（从1~10），其后各位数字表示在热处理细节方面有所变化。如 6061—T 62 ；5083—H 343等。 　T1—从成型温度冷却并自然时效至大体稳定状态。 　T2—退火状态（只用于铸件）。 　T3—固溶处理冷作后自然时效。 　T31—固溶处理冷作（1%）后自然时效。 　T36—固溶处理冷作（6%）后自然时效。 　T37—固溶处理冷作（7%）后自然时效，用于2219合金。 　T4—固溶处理后自然时效。 　T41—固溶处理后沸水淬火。 　T411—固溶处理后空冷至室温，硬度在O及T6之间，残余应力低。 　T42—固溶处理后自然时效。由用户进行处理，适于2024合金，强度比T4稍低。 　T5—从成型温度冷却后人工时效。 　T6—固溶处理后人工时效。 　T61—T41+人工时效。 　T611—固溶处理，沸水淬火。 　T62—固溶处理后人工时效。 　T7—固溶处理后稳定化。提高尺寸稳定性，减小残余应力，提高抗蚀性。 　T72—固溶处理后过时效。 　T73—固溶处理后进行分级时效，强度比T6低，抗蚀性显著提高。 　T76—固溶处理后进行分级时效。 　T8—固溶处理冷作后人工时效。 　T81—固溶处理后冷作，人工时效。为改善固溶处理后的变形及改善强度。 　T86—固溶处理后冷作（6%），人工时效。 　T87—T37+人工时效。 　T9—固溶处理后人工时效再冷作。 　T10—从成型温度冷却，人工时效后冷作。 　Tx51—为消除固溶处理后的残余应力进行拉伸处理。 　板材0.5~3%的永久变形，棒、型材1~3%的永久变形。 　X代表3、4、6或8，例如T351、T451、T651、T851，适用于板、拉制棒、线材，拉伸消除应力后不作任何矫正而时效。T3510、T4510、T8510，适用于挤压型材，拉伸消除应力后为使平直度符合公差进行矫正，并时效。 　Tx52—为消除固溶处理后的残余应力进行压缩变形，固溶处理后进行2.5%的塑性变形然后时效，例如T352、T652。 　Tx53—消除热应力。 　Tx54—为消除精密锻件固溶处理后的残余应力进行压缩变形。
机械性能
播报编辑机械性能分析（Typical Mechanical Properties）----铝合金牌号及状态拉伸强度屈服强度硬度延伸率(250℃MPa)(250℃MPa)500kg力10mm球1.6mm(1/16in)厚度-ALLOY AND TEMPERUltimate TensileStrengthYield TensileStrengthHardnessElongation7075-T65152048016010物理性能分析（Typical Physical Properties）----铝合金牌号及状态热膨胀系数（20-100℃）um/m.k熔点范围（℃）电导率20℃（68°F）（%ACS）电阻率20℃（68°F）m㎡/mALLOY ANDTEMPERAverage Coefficient OfThermal ExpansionMelting RangeElectrical ConductivityElectricalResistivity7075-T65123.6475-635330.0515(1)组合之元素性质以最高百分率表示，除非列出的是一个范围或是最低值。(2) 为了定出合适的数值限制，分析得来的观察或计算数值都是依据标准规则（ANSI Z25.1）以表示明确的范围。(3) 除了非合金外，合金内的元素所规定的份量通常在分析报告中指示出来。但如果在分析 过程中怀疑有其它元素存在或有部份元素被怀疑有过量的情形，更应进一步的分析直至有证实为止。(4) 不是经由精炼过程的非合金铝中的铝质的含量就是其它的金属的总量和百分百纯铝之差－其差别7075在于百分之0.01或稍多一点。（百分比的小数点后第二位）(5) 最多可含有0.25%锆和钛。锌是7075中主要合金元素，向含3%-7.5%锌的合金中添加镁，可形成强化效果显著的MgZn2，使该合金的热处理效果远远胜过于铝-锌二元合金。提高合金中的锌、镁含量，抗拉强度会得到进一步的提高，但其抗应力腐蚀和抗剥落腐蚀的能力会随之下降。经受热处理，能到达非常高的强度特性。7075材料一般都加入少量铜、铬等合金，该系当中以7075-T651铝合金尤为上品，被誉为铝合金中最优良的产品，强度高、远胜任何软钢。此合金并具有良好机械性及阳极反应。代表用途有航空航天、模具加工、机械设备、工装夹具，特别用于制造飞机结构及其他要求强度高、抗腐蚀性能强的高应力结构体。
计算公式
播报编辑板料重量（公斤）=长*宽*厚*密度（0.0000028） 单位（mm）铝管重量（公斤）=0.0000028×3.14×0.25x（外径^2-内径^2）×长度 单位（mm）铝棒重量计算公式（公斤）=0.0000028 ×3.14×半径×半径×长度 单位（mm）
对应牌号
播报编辑国标：7075 GB/T3190--2008日标：A7075 JIS H4000-1999 JIS H4080-1999非标：76528 IS 733-2001 IS737-2001俄标：B95/1950 rocT 4785-1974EN:EN AW-7075/AlZn5.5MgCu EN573-3-1994德标:AlZnMgCu1.5/3.4365 DIN172.1-1986/w-nr法标：7075（A-Z5GU） NFA50-411 NFA50-451英标：7075（C77S） BS 1470-1988美标：7075/A97075 AA/UNS
现货规格
播报编辑7075-板材现货规格：0.3mm-350mm(厚度)7075棒材现货规格：3.0mm-500mm(直径)7075线材现货规格：0.1mm-20mm(线径)
理论计算公式
播报编辑板材计算公式：厚*宽*长*密度（0.0000028） =重量圆棒计算公式：半径*半径*长度*3.14*密度（0.0000028）=重量新手上路成长任务编辑入门编辑规则本人编辑我有疑问内容质疑在线客服官方贴吧意见反馈投诉建议举报不良信息未通过词条申诉投诉侵权信息封禁查询与解封©2025 Baidu 使用百度前必读 | 百科协议 | 隐私政策 | 百度百科合作平台 | 京ICP证030173号 京公网安备11000002000001号window.PAGE_DATA= 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可以使钢结构更轻，从而提高了有效负荷和能效。 这种高强度淬火和回火 (Q) 低温高韧性 (L) 钢材的性能超过了 S690 QL EN 10025-6 标准的要求。用途： 机器构造钢建筑框架结构升降和移动设备车辆和运输设备 尺寸公差 表面质量 特性预制服务加工指导订购和交货 尺寸产品外形 该钢材以厚板型式交付。厚板 厚度 mm 宽度 mm长度 m 6.00 - 7.99 2000 - 2500 2 - 15 8.00 - 9.99 2000 - 3000 2 - 15 10.00 - 40.00 2000 - 3200  2 - 15如需交付长度超过 15 m 的钢板，需另行商定。公差 尺寸和形状公差： 厚板适用 EN 10029 标准。 板材厚度公差为 EN 10029 A 级。 平直度按 EN 10029 N 级。查看热轧钢材尺寸和形状公差 (pdf, 0.80MB)  in English  表面质量 表面质量：EN10163-2 A3 级。板材可按轧制或预涂底漆条件交货。下载有关预涂底漆板材的信息 (pdf, 1MB) in English 打印 特性材料试验 材料试验和取样按 EN 10025-6 标准进行。机械特性屈服强度 ReH MPa 最小值拉伸强度 Rm MPa延伸率 A5 最小值冲击强度 J @-40 °C, 平均值 最小值 690 770 - 940 14 30 拉伸试验按轧制方向横向进行。冲击试验则按轧制方向纵向进行。 化学成分 成分 %（熔炼分析），最大值碳硅锰磷硫硼铬铜钼0.200.80 1.70  0.020 0.010 0.005 1.50 0.50 0.70碳当量 (CEV)CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15厚度 mm：CEV 最大值： 6 - 12 0.42 (12) - 35 0.52 (35) - 40 0.63