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Strip or Plate Type Copper Beryllium used for Contact Springs / Switches / Bronze strip1
Copper Alloy, Copper Beryllium, Beryllium Copper Strip
Shanghai Tankii Alloy Material Co., Ltd.
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Product Description Strip or Plate Type Copper-beryllium used for Contact Springs / Switches / RelaysCopper-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. Chemical CompositionElementComponentBe1.85-2.10%Co+Ni0.20% MinCo+Ni+Fe0.60% Max.CuBalance Typical Physical PropertiesDensity (g/cm3)8.36Density before age hardening (g/cm38.25Elastic Modulus (kg/mm2 (103))13.40Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C)17 x 10-6Thermal Conductivity (cal/(cm-s-°C))0.25Melting Range (°C)870-980 Mechanical property (Before Hardening treatment) :statusTensile strength(Kg/mm3)Hardness(HV)Conductivity( IACS%)Elongation(%)H70-85210-240222-81/2H60-71160-210225-25042-5590-1602235-70 After Hardening treatment BrandTensile strength(Kg/mm3)Hardness(HV)Conductivity(IACS%)Elongation(%)C17200-TM061070-1210330-390≥17≥4 Features 1. High thermal conductivity2. 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.Our product are in the form of wire, ribbon, strip, coil.Round wireRibbon (flat wire)Strip / foilStranded wireSheet / plateApplicationsAutomotive, electronic, aeronautical, Oil&Gas, watch, electro-chemical industries, etc. Beryllium Copper is widely used in those fields as contact springs in various applications like connectors, switches, relays, etc.
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