Tungsten alloys are composed of 90 to 97% tungsten with combination of either copper and nickel or iron or nickel. It is widely used in radiation shielding and high density applications. Manufacturers make use of this alloy to create different products. Agescan International Inc. is one manufacturer that provides tungsten alloy to manufacturers worldwide that create components and material used in defense. The clients can select the heavy duty tungsten alloy by its material composition, density, hardness, yield strength, elongation, proportional elastic limit, modulus of elasticity, coefficient of thermal expansion, thermal conductivity, electrical conductivity, and magnetic properties. Bullets, firearms and bullet proof vehicles are the best example of defense products that are made from tungsten.