High melting point and high hardness is the most important advantages of tungsten.
First used as filament wire,and it is ideal material for high temperature furnace and be used to make high temperature resistant parts.It can increase the high temperature hardness of steel,about 50% of the tungsten ore mined in the world is used for the smelting of high-quality steel, and about 35% is used to produce hard steel.So tungsten is used mainly because of its high temperature resistance and hardness.
In addition, tungsten has the advantages of low vapor pressure, low evaporation rate and relatively stable chemical properties.
About 10% is used to make tungsten wire, and about 5% is used for other purposes. Tungsten can be used to manufacture firearms, rocket propeller nozzles, armor-piercing projectiles, cutting metal blades, drill bits, super-hard molds, wire drawing dies, etc. Tungsten is widely used in mining, metallurgy, machinery, construction, transportation, electronics, chemicals, Light industry, textile, military, aerospace, science and technology, various industrial fields.
