Tungsten alloy rod has so many advantages, such as high density, high melting point, small volume, excellent hardness, superior wearing resistance, high ultimate tensile strength, high ductility, high temperature resistance, etc. The warhead of FIM-92 Stinger is made of tungsten alloy rod.
The FIM-92 Stinger is a personal portable infrared homing surface-to-air missile (SAM), which can be adapted to fire from ground vehicles or helicopters (as an AAM), developed in the United States and entered into service in 1981. Used by the militaries of the United States and by 29 other countries, it is manufactured by Raytheon Missile Systems and under license by EADS in Germany, with 70,000 missiles produced. It is classified as a Man-Portable Air-Defense System (MANPADS).
Light to carry and easy to operate, the FIM-92 Stinger is a passive surface-to-air missile, shoulder-fired by a single operator, although officially it requires two. The FIM-92B missile can also be fired from the M-1097 Avenger and M6 Linebacker. The missile is also capable of being deployed from a Humvee Stinger rack, and can be used by paratroopers. A helicopter launched version exists called Air-to-Air Stinger (ATAS).