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    Tungsten Copper Alloy
  • Description of Tungsten Copper Alloy

    Tungsten Copper alloys produced by sintering and infiltration methods have ideal conductivity, good machining property, high tensile strength, high fracture toughness, high ablation resistance and low thermal expansion coefficient in elevated temperature. WCu alloys are widely used in astronautic, aeronautic, electric and electronic, EDM machine, metallurgy industry.
    AEM can provide two phases or three phases Tungsten Copper alloys which the Copper content varied from 5% to 95%. AEM can produce various big-size WCu parts by CIP, various small parts by mold pressing, extruding or MIM, various thickness plates by rolling. We use high-purity raw materials with good quality, and then produce excellent-performance WCu heat sinks by pressing, sintering and infiltrating at high temperature. It is suitable for material for the package of high-power devices; the lead frame of high performance; thermal control device such as thermal control board and heat sink.

    Typical Tungsten Copper Alloy Properties

    Material Tungsten Content (wt%) Copper Content (wt%) Density
    (g/cm³)
    Thermal Conductivity at 25℃ (W/M∙K) CET at 25℃ (10-6/K)
    W90Cu10 90±1 Balance 17.0 180-190 6.5
    W85Cu15 85±1 Balance 16.4 190-200 7.0
    W80Cu20 80±1 Balance 15.6 200-210 8.3
    W75Cu25 75±1 Balance 14.9 220-230 9.0
    W50Cu50 70±1 Balance 12.2 310-340 12.5

    Typical Tungsten Copper Alloy Product

    Tungsten Copper rod (diameter: ≥ 0.9mm, length: ≤ 300mm)

    The manufacturing processes include static pressure molding, high temperature sintering, soluble copper infiltration.
    All the Tungsten Copper rods can  be produced inaccordance with customers' requirements.

    Tungsten Copper bars

    They are made from the fine Tungsten and Copper powder and produced through powder metallurgy technology.
    Advantages:  High temperature resistance, high arc resistance, highstrength,good thermal property and electrical conductivity properties.

    Tungsten Copper tubes

    They use the excellent metal characteristics of the high pure Tungsten powder and the plasticity and high conductivity of the high pure Copper powder to produce composite materials with isostatic pressing, high temperature sintering and the solution process of Copper infiltration technology. These materials have a lot advantages: the arc ablation resistance, good thermal conductivity, and small thermal expansion, not soften in high temperature, softening, high strength, high density, high hardness etc. Tungsten Copper tubes are widely used in machinery, electronics, aviation, aerospace, military and other fields.

    Tungsten Copper blocks

    They are produced by isostatic press, high temperature sintering and Copper infiltration process. They can be made into frame heat conducting plates, chip carriers and high- energy electron devices. They have good thermal conductivity and low expansion. Its expansion is equal to the Silicon Carbide, Alumina Oxide and Beryllium Oxide. The good characteristics of Tungsten Copper blocks made themselves to be the best material for integrated circuits, and they are widely used in various fields. We can produce Tungsten Copper blocks with different shapes according to customers' requirements.

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