Tungsten Heavy Alloy

Tungsten Heavy Alloy (THA) provides truly unique properties required in radiation shielding applications ranging from medical devices to oilfield logging tools. The nominal tungsten content of THA ranges from 90% to 97% (densities from 17.0 g/cc to 18.5 g/cc respectively) with the balance comprised primarily of nickel and iron. By adding alloying elements to tungsten, much greater ductility and better machinability can be achieved than with pure tungsten. Additional shielding applications for THA include collimators, shielding blocks, nuclear medical and positron emission tomography (PET) shielding components, and nuclear testing equipment.

THA can be supplied in a variety of forms including machinable bar (0.25” dia. to 59” dia.) and sheet stock up to 20” in width with thicknesses from 0.008” to 0.125” or as finished parts which have been pressed, sintered, and precision-machined to the customer’s specifications.

In addition to radiation shielding, other applications for THA include projectiles, balance weights, and vibration dampeners.