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Copper Alloy Plate Alloy 25 C17200 Beryllium Copper

Short Description:

Copper-beryllium alloys are mainly based on copper with a beryllium addition. High strength beryllium copper alloys contain 0.4-2% of beryllium with about 0.3 to 2.7% of other alloying elements such as nickel, cobalt, iron or Lead. The high mechanical strength is achieved by precipitation hardening or age hardening.
Beryllium Copper is a copper alloy with the optimum combination of mechanical and physical properties such as tensile strength, fatigue strength, performance under elevated temperatures, electrical conductivity, bending formability and corrosion resistance. Beryllium Copper is widely used as contact springs in various applications like connectors, switches, relays, etc.


  • Model NO.: Beryllium Copper
  • Standard: JIS
  • Specification: 0.1-10mm
  • Product Type: copper Alloy
  • Trademark: TANKII
  • surface: Bright
  • Product Detail

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    Product Tags

    Chemical Composition

    Element Component
    Be 1.85-2.10%
    Co+Ni 0.20% Min
    Co+Ni+Fe 0.60% Max.
    Cu Balance

    Typical Physical Properties

    Density (g/cm3) 8.36
    Density before age hardening (g/cm3 8.25
    Elastic Modulus (kg/mm2 (103)) 13.40
    Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C) 17 x 10-6
    Thermal Conductivity (cal/(cm-s-°C)) 0.25
    Melting Range (°C) 870-980

    Mechanical property (Before Hardening treatment) :

    status Tensile strength
    (Kg/mm3)
    Hardness
    (HV)
    Conductivity
    ( IACS%)
    Elongation
    (%)
    H 70-85 210-240 22 2-8
    1/2H 60-71 160-210 22 5-25
    0 42-55 90-160 22 35-70

    After Hardening treatment 

    Brand Tensile strength
    (Kg/mm3)
    Hardness
    (HV)
    Conductivity
    (IACS%)
    Elongation
    (%)
    C17200-TM06 1070-1210 330-390 ≥17 ≥4

    Features  
    1. High thermal conductivity
    2. High corrosion resistance, especially suitable for polyoxyethylene (PVC) products mold.
    3. High hardness, wear resistance and toughness, as inserts used with mould steel and aluminium can make the mold play a       highly efficient, prolong the service life.
    4. Polishing performance is good, can achieve high mirror surface precision and complicated shape design.
    5. Good tackiness resistance, easy to welding with other metal, easy to machining, there is no need additional heat treatment.


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