Tungsten screws are well-known for their extremely high density; as a result of this distinguishing feature, they are frequently used for balancing rotating parts. Because of the high mass of tungsten, these screws are also radiopaque. Because of this, tungsten screws can block radiation and show up well on x-rays – even better than lead. Another distinguishing feature of tungsten is its extremely high melting point of 3420°C. Tungsten screws’ high temperature stability makes them ideal for some of the hottest vacuum furnace environments. Tungsten fasteners are highly corrosion resistant in addition to their high mass and temperature stability.
Tungsten fasteners are typically made from tungsten alloys that range from 90% to 97% pure tungsten alloyed with nickel and copper or nickel and iron, according to ASTM B777. Commercially Pure (CP) Tungsten can also be used to make fasteners.
Tungsten screws
