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High Conductivity C51100 Phosphor Copper - Quality Suppliers & Factory in China

C51100, known internationally as CuSn4, is a premium tin-phosphorus bronze and a high-performance elastic copper alloy. Produced by leading China suppliers, this material primarily consists of copper, enhanced with precise amounts of tin and phosphorus. Tin significantly boosts the alloy's strength, wear resistance, and corrosion resistance, while phosphorus enhances elasticity and fatigue resistance, also acting as a deoxidizer. This exceptional combination of high strength, superior elasticity, wear resistance, and outstanding corrosion resistance makes C51100 ideal for various applications in electronics, electrical engineering, and precision machinery. Trustworthy manufacturers from China provide this superior alloy, ensuring top quality from factory to application
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    Product Detail

    Chemical Composition
    Element Content (%)
    Cu ≥ 99.5 (Rem)
    Sn 3.5 – 4.9
    P 0.03 – 0.35
    Zn ≤ 0.30
    Fe ≤ 0.10
    Pb ≤ 0.05
    Physical Properties
    Item Values
    Density Approximately 8.86 g/cm³
    Electrical Conductivity Approximately 20% IACS
    Melting Point Approximately 970 – 1060°C
    Elastic Modulus ≈ 110 GPa
    Material Characteristics
    Excellent Elasticity

    C51100 exhibits excellent elasticity recovery capability, making it suitable for manufacturing elastic components such as springs.

    High Wear Resistance

    Low friction coefficient and outstanding wear resistance, suitable for sliding parts.

    Good Corrosion Resistance

    Stable performance in air, fresh water, and seawater environments, with strong corrosion resistance.

    Excellent Processing Properties

    Excellent cold processing performance, good welding performance, and decent cutting performance.

    Application Fields

    The C51100 is widely used in industries that have high requirements for elasticity, wear resistance, and reliability. For example, in the electronics and electrical industry, it is widely applied to connector spring clips, relay contacts, switch components, etc.; in the precision machinery industry, it is widely used in springs, gears, bearings, etc.; in the industrial equipment industry, it is applied to instrument parts (also known as "instrument copper"), wear-resistant sliding components, etc.

    Frequently Asked Questions
    Q: What is the chemical composition of C51100?
    C51100 consists primarily of Copper (Cu ≥ 99.5% Rem), Tin (Sn 3.5 – 4.9%), and Phosphorus (P 0.03 – 0.35%), with trace amounts of Zinc (≤ 0.30%), Iron (≤ 0.10%), and Lead (≤ 0.05%).
    Q: What are the main physical properties of C51100?
    It has a density of approximately 8.86 g/cm³, electrical conductivity of about 20% IACS, a melting point range of 970 – 1060°C, and an elastic modulus of approximately 110 GPa.
    Q: Why is C51100 suitable for springs and elastic components?
    C51100 exhibits excellent elasticity recovery capability, making it highly reliable and suitable for manufacturing high-performance elastic components like springs.
    Q: How does C51100 perform in corrosive environments?
    C51100 offers good corrosion resistance, maintaining stable performance and durability in air, fresh water, and seawater environments.
    Q: What are the primary application fields for C51100?
    It is widely used in the electronics industry (connector spring clips, relay contacts, switch components), precision machinery (springs, gears, bearings), and industrial equipment (instrument parts and wear-resistant sliding components).

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