90% Ø8.74x50.8mm tungsten heavy alloy billet price is 5.00USD/PC on Apr. 29, 2019. The standard material for dart billet is tungsten heavy alloy as tungsten has a specific gravity of 19.2g/cm3, so it is a very dense material. For its special properties, nowadays tungsten is widely applied to make darts replacing brass. Because of technical difficulties with manufacturing, pure tungsten dart is not available.