各种模具用铍铜棒、铍铜块、铍铜带，质优价廉。

铍铜合金(Beryllium Copper)铍铜是一种过饱和固溶体铜基合金，是机械性能，物理性能，化学性能及抗蚀性能良好结合的有色合金，经固溶和时效处理后，具有与特殊钢相当的高强度极限，弹性极限，屈服极限和疲劳极限。同时又具备有高的导电率，导热率，高硬度和耐磨性，高的蠕变抗力及耐蚀性，广泛应用于制造各类模具镶嵌件，替代钢材制作精度高，形状复杂的模具，焊接电极材料压铸机，注塑机冲头，耐磨耐蚀工作等，铍铜带材应用于微电机电刷，手机电池、电脑接插件，各类开关触点，弹簧、夹子、垫圈、膜片、膜合等产品上。是国民经济建设中不可缺少的重要工业材料。(一)铍青铜棒管材产品执行标准：GB/T5231-2001、YS/T334-1995、ASTM系列标准。化学成份：                                    牌 号                                    主要成分                                    杂 质 含 量                                                    Be                                    Ni                                    Co                                    Ti                                    Mg                                    Cu                                    Al                                    Fe                                    Pb                                    Si                                    Co                                                    QBe2                                    1.80-2.1                                    0.20-0.50                                    -                                    -                                    -                                    余量                                    0.15                                    0.15                                    0.005                                    0.15                                    -                                                    QBe1.9                                    1.85-2.1                                    0.20-0.40                                    -                                    0.10-0.25                                    -                                    余量                                    0.15                                    0.15                                    0.005                                    0.15                                    -                                                    QBe1.9-0.1                                    1.85-2.1                                    0.20-0.40                                    -                                    0.10-0.25                                    0.07-0.13                                    余量                                    0.15                                    0.15                                    0.005                                    0.15                                    -                                                    QBe1.7                                    1.60-1.85                                    0.20-0.40                                    -                                    0.10-0.25                                    -                                    余量                                    0.15                                    0.15                                    0.005                                    0.15                                    -                                                    QBe0.6-2.5                                    0.40-0.70                                    -                                    2.40-0.70                                    -                                    -                                    余量                                    0.20                                    0.10                                    -                                    0.20                                    -                                                    Qbe0.4-1.8                                    0.20-0.60                                                -                                    -                                    -                                    余量                                    0.20                                    0.10                                    -                                    0.20                                    0.30                                                    QBe0.1-1.5                                    0.25-0.50                                    -                                    1.40-1.70                                    -                                    -                                    余量                                    0.20                                    0.10                                    -                                    0.20                                    -                        注意：QBe2、QBe1.9、QBe1.9-0.1、QBe1.7四个牌号的化学成分和GB5238-85相同。尺寸及允许公差：mm                                    拉 制 棒                                    挤 制 棒(R)                                                    公称直径                                    5-10                                    >10-15                                    >15-20                                    >20-30                                    >30-40                                    公称直径                                    >20-30                                    >30-50                                    >50-80                                    >80-120                                                    允许            偏差                                    较高级                                    -0.08                                    -0.1                                    -0.12                                    -0.14                                    -0.17                                    高级                                    -0.84                                    -1.0                                    -0                                    -                                                    普通级                                    -0.16                                    -0.2                                    -0.24                                    -0.28                                    -0.34                                    较高级                                    -1.3                                    -1.6                                    -1.9                                    -2.2                        注：1、棒材的直径偏差须在合同中注明，否则按普通级供货。2、长度规格：棒材的定尺或倍尺的允许偏差为+20mm。倍尺长度应加入铝切分段时的锯切量，每一锯量为5mm弯曲度：                                    制造方法直径                                    每米弯曲度、不大于Max                                                    φ5-20                                    φ>20-40                                    φ>40-80                                    φ>80-120                                                    拉制                                    5                                    4                                    -                                    -                                                    挤制                                    -                                    6                                    10                                    13                        注：棒材总弯曲度应不超过每米许可弯曲度与总长度(米)的乘积.力学性能：                                    合 金 牌 号                                    状 态                                    直径                                    抗拉强度            σbMPa不小于                                    延伸率            δ%不小于                                    硬度不小于                                                    HRB                                    HB                                                    QBe2            QBe1.9            QBe1.9-0.1                                    QBe1.7                                    M                                    5-40                                    400                                    30                                    -                                    100                                                    R                                    20-120                                    400                                    20                                    -                                    -                                                    D            Y2                                    35-100            5-40                                    500-660                                    8                                    78                                    -                                                    Y                                    5-10                                    660-900                                    2                                    -                                    150                                                    >10-25                                    620-860                                    2                                                    >25                                    590-830                                    2                                                    QBe0.6-2.5            QBe0.4-1.8            QBe0.3-1.5                                    M                                    5-40                                    240                                    20                                    ≤50                                    -                                                    Y                                    450                                    2                                    60                                    -                        注：硬度试验须在合同注明时，方予进行测试；直径小于16mm的棒材不作硬度试验。铜棒时效处理后力学性能：                                    合 金 牌 号                                    材料状态                                    直径                                    抗拉强度            σbMPa不小于                                    延伸率            δ%不小于                                    硬度不小于                                    时效工艺                                                    HRB                                    HB                                                    QBe2            QBe1.9            QBe1.9-0.1            QBe1.7                                    TF00                                    5-40                                    1000-1380                                    2%                                    30-40                                    -                                    320±5℃X3h                                                    TH04                                    5-10                                    1200-1500                                    1%                                    30-45                                    -                                    320±5℃X2h                                                    >10-25                                    1150-1450                                    1%                                    35-44                                    -                                    320±5℃X3h                                                    >25                                    1100-1400                                    1%                                    34-44                                    -                                    320±5℃X3h                                                    QBe0.6-2.5            QBe0.4-1.8            QBe0.3-1.5                                    TF00                                    5-40                                    690-895                                    6%                                    -                                    92-100                                    480±5℃X3h                                                    TH04                                    760-965                                    3%                                    -                                    95-102                                    480±5℃X3h                        (二)铍青铜板带材产品执行标准：GB/T5231-2001、YS/T334-1995、ASTM系列标准。化学成分:                                    牌号                                    主 要 成 分                                    杂质含量(≤ wt%)                                                    Be                                    Ti                                    Ni                                    Cu                                    Fe                                    Al                                    Si                                    Pb                                    总和                                                    QBe2.0                                    1.8-2.1                                    /                                    0.2-0.25                                    余量                                    0.15                                    0.15                                    0.15                                    0.005                                    0.5                                                    QBe1.9                                    1.85-2.10                                    0.1-0.25                                    0.2-0.4                                    余量                                    0.15                                    0.15                                    0.15                                    0.005                                    0.5                                                    CuBe2                                    1.8-2.0                                    Co≤0.20                                    Ni+Co+Fe≤0.6                                                    CuBe1.0                                    0.40-0.70                                    Co:2.35-2.70                                    Cu+Be+Ni+Co≥99.5                                                    CuBe7                                    0.2-0.4                                    Co+Ni:1.8-2.5                                    Cu+Be+Ni+Co≥99.0                        物理物性:                                    性能\合金                                    QBe2.0                                    CuBe10                                    CuBe7                                                    密度 g/cm at 20℃                                    8.26                                    8.75                                    8.75                                                    热膨胀系数 at20-300℃                                    1.78x10-5                                    1.76x10-5                                    1.75x10-5                                                    比热Cal/g℃at 20℃                                    0.1                                    0.1                                    0.1                                                    导电率 %IACS  at 20℃                                    22                                    48                                    38                                                    纵弹性模量 LME  MPa                                    130000                                    135000                                    127000                                                    横弹性模量 TME  MPa                                    50000                                    52500                                    49000                                                    热导率Cal/cmsec℃at 20℃                                    0.2-0.31                                    0.40-0.62                                    0.40-0.60                        机械性能:                                    牌号                                    状态                                    机械性能                                    杯 突 深 度(mm)                                    时效热处理                                                    拉伸长度            σb≥MPa                                    延伸率            δ≥(%)                                    维氏硬度            HV MPa                                    厚度            0.16-0.25                                    厚度            0.15-0.10                                                    QBe2.0                                    软                                    392-588                                    30                                    ≤1274                                    ≥7                                    ≥6                                                                硬                                    637                                    2.5                                    ≥1666                                    ≥3                                    ≥2.5                                                    软时效                                    1127                                    2.0                                    ≥3136                                    -                                    -                                    320℃x2h                                                    硬时效                                    1176                                    1.5                                    ≥3528                                    -                                    -                                                    QBe1.9                                    软                                    392-588                                    30                                    ≤1176                                    ≥7                                    ≥6                                                                硬                                    637                                    2.5                                    ≥1568                                    ≥3                                    ≥2.5                                                    软时效                                    1127                                    2.0                                    ≥3430                                    -                                    -                                    320℃x2h                                                    硬时效                                    1176                                    1.5                                    ≥3626                                    -                                    -                                                    CuBe10                                    时效前                                    500-650                                    2.0                                    1300-1900                                                            -                                                    时效后                                    770-970                                    1.5                                    2300-2800                                                            480℃x2h                                                    CuBe7                                                765-900                                    3以上                                    220-275                                    -                                    -                                    尺寸公差:mm                                    厚 度                                    厚 度 允 许 偏差                                                    普通            精度                                    较高            精度                                    最高            精度                                                    0.05-0.09                                    -0.015                                    -0.01                                    ±0.005                                                    0.10-0.14                                    -0.02                                    -0.015                                    ±0.010                                                    0.15-0.24                                    -0.03                                    -0.02                                    ±0.015                                                    0.25-0.30                                    -0.03                                    -0.02                                    ±0.020                                                    0.31-0.39                                    -0.04                                    -0.03                                    ±0.020                                                    0.40-0.49                                    -0.04                                    -0.03                                    ±0.025                                                    0.50-0.59                                    -0.05                                    -0.04                                    ±0.025                                                    0.60-0.69                                    -0.05                                    -0.05                                    ±0.030                                                    0.70-0.79                                    -0.06                                    -0.05                                    ±0.035                                                    0.85-1.0                                    -0.07                                    -0.06                                    ±0.040