Application Tungsten is mostly used in the production of carbide and iron tungsten. Tungsten and chromium, molybdenum, cobalt composition of heat resistant wear alloy used for cutting tools, metal surface hardening materials, gas turbine blades and combustion tubes. Tungsten, tantalum, niobium, molybdenum and other refractory alloys. Tungsten-copper and tungsten-silver alloys are used as electrical contact point materials. High density tungsten nickel-copper alloy is used as a shield against radiation. Tungsten wires, rods, plates, etc. are used in making parts of electric bulbs, electronic tubes and electrodes for arc welding. Tungsten powder can be burned into filters of various porosity. Fw-1 is used for large slab and tungsten-rhenium galvanic materials. Fw-2 is used for contact alloy and high specific gravity shielding material. Fwp-1 is used for plasma spraying materials.