Tungsten

Tungsten is a hard, heavy, nonmagnetic metal which will melt at approximately 6150°F (3400°C).

Uses. Tungsten is used in making light bulb filaments, phonograph needles, and as an alloying agent in production of high-speed steel, armorplate, and projectiles. It is also used as an alloying agent in non-consumable welding electrodes, armor plate, die and tool steels, and hard metal carbide cutting tools.

Capabilities. Tungsten can be cold and hot drawn.

Limitations. Tungsten is hard to machine, requires high temperatures for melting, and is produced by powered metallurgy (sintering process).

Tungsten Properties. Tungsten has a melting point of 6170 ± 35°F (3410 ± 19°C); is ductile; has tensile strength of 105,000 psi (723,975 kPa); a specific gravity of 19.32; thermal conductivity of 0.397; a Brinell hardness number of 38; and is a dull white color.

Appearance. Tungsten is steel gray in color.

Spark test. Tungsten produces a very small volume of short, straight, orange streaks in a spark test.