The caliber of tungsten alloy small caliber bullet cartridge generally ranges from 0.5 mm to 9 mm, including the general specification of 5.56mm, 7.62mm, 9 mm, 0.38 mm and 0.45 mm. This type of small caliber bullet cartridge can be made by the tungsten mixture through powder metallurgy process, so as to get rid of the adverse effect of the environmental harm caused by lead ammunition.
Tungsten alloy small caliber bullet cartridge has high density of up to 18.0g/cm3, so the same calibre bullet cartridge can be made from less tungsten alloy material in the same situation. Because of the non-toxic and environmental protection characteristic of tungsten alloy, it gradually replaces lead bullet and becomes the main component of small caliber bullet core, which is used in national defense military field.
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