Heavy alloy

Heavy alloy, also known as high density tungsten alloy, tungsten as matrix (content 85-99%), added alloy Ni, Cu, Co, Mo, Cr and other elements. Use according to the alloy composition and characteristics into W-Ni-Fe, W-Ni-Cu, W-Co, W-WC-Cu, W-Ag major series, a high density of 16 .5-19.0g/cm3, so also known as high-density alloy.

The main properties of an alloy of high specific gravity material are: high density, generally accounting for 16.5-18.75g/cm3; high strength, tensile strength of 700-1000Mpa; strong ability to absorb radiation, 30-40% higher than that of lead; thermal conductivity coefficient, W the thermal conductivity of the alloy tool steel 5 times; thermal expansion coefficient is small, only 1/2-1/3 of iron or steel; conductive properties, its good electrical properties and is widely used in lighting and welding industry; has good weldability and workability. Heavy alloy is mainly used in aerospace, aviation, military, oil drilling, electrical instrumentation, medical and other industries, can also be used to make a variety of anti-radiation shielding components. Currently heavy alloy belongs to the most important military-industrial applications.


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