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C19160 high strength copper alloy

C19160 (CuNiSiCr) is a high-performance copper alloy belonging to the nickel-silicon precipitation strengthened copper alloy category. This material is strengthened through heat treatment and possesses high strength, excellent electrical conductivity, and outstanding softening resistance, and is widely used in the fields of electronics, electrical engineering, and high-end connectors.

    1、Chemical composition
    Element Content
    Copper (Cu) Rem
    Nickel ( Ni ) 1.0-2.0
    Silicon (Si ) 0.5-1.0
    Chromium (Cr) 0.1-0.5
    Impurities ≤0.2
    2、Mechanical Properties (Typical Values)
    Project Values
    Tensile strength 500-700 Mpa
    Yield strength 400-600 Mpa
    Elongation 5-15 %
    Hardness 140-220 (HV)
    3、Physical Properties
    Item Value
    Electrical Conductivity 35 – 50 % IACS
    Density ≈8.8 g/cm³
    Thermal Conductivity Good
    Coefficient of Linear Expansion Medium
    4、Main Features
    - Balance of high strength and good conductivity

    C19160 has achieved a balance between high strength and good conductivity through alloy strengthening treatment. While maintaining certain conductivity, its mechanical strength has been significantly enhanced compared to pure copper materials. Its tensile strength and yield strength have both shown a notable improvement.

    - Excellent resistance to thermal softening

    C19160 can maintain good mechanical properties even at medium-high temperatures, and is less prone to softening or performance degradation. Even when used under long-term electrical conduction or heating conditions, it can maintain its structural strength and conductivity at the temperature.

    - Good wear resistance and fatigue resistance

    C19160 is less likely to suffer severe wear under frequent contact, friction, or plugging conditions. At the same time, its fatigue resistance performance is stable, and it can withstand repeated stress without cracking or failure, making it suitable for components that require long-term cyclic operation.

    - Good forming and processing performance

    This alloy has good plasticity and processing adaptability, allowing for various cold processing techniques such as stamping, bending, and stretching. It is also suitable for precision machining. During the processing, it is less likely to cause cracking or uneven deformation, which is conducive to improving production efficiency and ensuring product dimensional accuracy.

    5、Typical Application Scenarios
    Electronics and Electrical Industry

    Connector terminals, tabs, switch contacts

    New Energy and Automotive Industry

    Battery connectors, conductive components of electronic control systems

    Communication Equipment

    Precise conductive structural components, high-frequency connectors

    Industrial Equipment

    Elastic conductive parts, wear-resistant structural components

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