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    Chromium

    Chromium

    Chromium is hard, brittle semi-grey metal. As a compound, it has varied and robust colors. Chromium ion forms many coordination compounds. In active and passive forms, the latter gives rise to its corrosion resistance due to a thin surface oxide layer that passivates the metal when treated with oxidizing agents. Active form reacts readily with dilute acids to form chromous salts. It is soluble in acids (except nitric) and strong alkalies, and insoluble in water.
    AEM provides pure chromium products and chromium-nickel alloys, chromium cobalt alloys with high quality and competitive prices.
    Below are some of our standard chromium and its alloy products. If you require customized products, please contact us by email.

    Physical Properties of Chromium

    Chromium Physical Properties
    Density gm/cc 7.18
    Melting Point °C 1857
    Boiling Point °C 2672
    Thermal Conductivity W/cm/K @ 298.2 K 0.939
    Specific Heat Cal/gm/°C 0.107
    Coefficient of Linear Thermal Expansion micro-in/°F x 10-6 4.9
    Heat of Vaporization K-Cal/gm atom at 3380 oC 72.97
    Electronegativity Paulings 1.6
    Electrical Resistivity micro-ohm-cm 12.9

    Mechanical Properties of Chromium

    Chromium Mechanical Properties Metric imperial
    Poisson’s Ratio 0.31 0.31
    Modulus of Elasticity 248 GPa 35969 ksi
    Hardness, Vickers 90 90
    Hardness, Brinell (converted from Vickers for 500 kg load/10 mm ball) 80 80
    Hardness, Knoop (converted from Vickers) 102 102
    Hardness, Rockwell B (converted from Vickers) 48 48

    Product List of Chromium

    Chromium Metal: Chromium wire, Chromium tubes, Chromium rods, Chromium sheets, Chromium discs, customized machined chromium parts
    Chromium alloys: Chromium-Nickel alloys, Chromium Cobalt alloys.
    Chromium chemicals: Chromium Carbide powder, Chromium Diboride (CrB2) Powder, and Chromium metal powder

    Applications of Chromium

    1. In metal ceramics
    2. In chrome plating
    3. As dyes and paints
    4. To produce synthetic rubies
    5. In alloys, e.g., stainless steel
    6. To manufacture molds for the firing of bricks
    7. As a catalyst in dyeing and tanning of leather
    8. In metallurgy to provide corrosion resistance and a shiny finish
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