90W Ø8.74x50.8mm tungsten carbide rod price is 4.50USD/PC on Feb. 21, 2019. Tungsten carbide rod is also called tungsten alloy dart billets. The best material to manufacture these rods is tungsten, as it is very dense, and can made slim dart with a considerable weight. As 100% tungsten is difficult to machine, dart billets can be 90% tungsten, 7% nickel and 3% iron. Popularly 70~90% tungsten is used for making both soft-tip and steel tip barrels, ranging from 14~18 gram and 18~40 gram respectively.