模具用铝板，5754铝板，7075航空铝板
模具用铝板，5754铝板，7075航空铝板7075由美铝公司在1943年推出，在航空航天工业，7075至今一直是7xxx系列合金的主力力量。这是第一次成功的在AL-Zn-Mg-Cu系高强度合金中使用加入了铬合金，使之形成了良好的抗应力腐蚀开裂的板材产品，其效益影响深刻。虽然其他7xxx合金至今也已开发与改进了特定的属性，7075仍然是一个很好的平衡航空航天应用所需的性能基线。      
Alloy        7075        is        Introduced        by        Alcoa        in        1943,        alloy        7075        has        been        the        standard        workhorse        7XXX        series        alloy        within        the        aerospace        industry        ever        since.        It        was        the        first        successful        Al-Zn-Mg-Cu        high        strength        alloy        using        the        beneficial        effects        of        the        alloying        addition        of        chromium        to        develop        good        stress-corrosion        cracking        resistance        in        sheet        products.        Although        other        7XXX        alloys        have        since        been        developed        with        improved        specific        properties,        alloy        7075        remains        the        baseline        with        a        good        balance        of        properties        required        for        aerospace        applications.      
7075合金薄板和中厚板产品应用遍及航空航天结构当中，其中，适中的韧性和腐蚀性的高强度结合是材料所必须具有的。      
Alloy        7075        sheet        and        plate        products        have        application        throughout        aircraft        and        aerospace        structures        where        a        combination        of        high        strength        with        moderate        toughness        and        corrosion        resistance        are        required.      
化学成分范围（重量%）CHEMICAL        COMPOSITON        LIMIES        (WT.%)      

Si                0.40                Zn        .        .        .                5.1-6.1      
Fe                .        .        .                0.50                Ti        .        .        .                0.20      
Cu        .        .        .                1.2-2.0                Others,        each        .        .        .                0.5      
Mn        .        .        .                0.30                Others,        total        .        .        .                0.15      
Mg        .        .        .                2.1-2.9                Balance,        Aluminum                      
Cr                .        .        .                0.18-0.28                                      

Note:        Value        maximum        if        range        not        shown      
机械性能（MECHAN        NICAL        PROPERTIES）      

Temper                Thickness        in.(mm)                TENSILESTRENGTH      
Ksi（Mpa）                YIEID        STRENGTH      
Ksi（Mpa）                ELONGATION      
%      
0                0.015-2.00                40        (max)                21        (max)                9-10      
Sheet        &        plate        T6                (0.38-50.80)        0.008-0.249                (276)      
74-78                (145)      
63-69                      
5-8      
Sheet                T651                (0.203-6.32)        0.250-4.000                (510-538)      
78-67                (434-476)      
67-54                      
9-3      
Plate                                T76                (6.35-101.60)        0.125-0.249                (538-462)      
73                (462-372)      
62                      
8      
Sheet                T7651                (3.18-6.32)        0.250-1.000                (503)      
72-71                (427)      
61-60                      
8-6      
Plate                                T73                (6.35-25.40)        0.040-0.249                (496-490)      
67                (421-414)      
56                      
8      
Sheet                T7351                (1.02-6.32)        0.250-4.000                (462)      
69-61                (386)      
57-48                      
7-6      
Plate                (6.35-101.60)                (476-421)                (393-331)                      
7075所有的值都是最低的横向机械性能除非另有说明（ALLOY        7075        All        values        are        minimum        long        transverse        mechanical        properties        except        where        noted）      
合金7075典型的断裂韧性值（TYPICAL        FRACTURE        TOUGHNESS        VALUES        Alloy        7075        Plate）      


7075                T651      
T7351                26        (28.6)      
30        (32.0)                22(24.2)      
26        (28.6)      

PROCUREMENT                        SPECIFICATIONS      
PLATE      
Temper                                                                                                                                                                                                        T651                                                                                                                                                                                                                                                                        T7651      
Specification                                                                                                                                                QQ-A-250/13