Tungsten Heavy Alloy

Tungsten-based high-density alloys can be classified into tungsten-nickel-iron alloys, tungsten-nickel-copper alloys, and tungsten-molybdenum-nickel-iron alloys. The main grades of tungsten-nickel-iron alloys include W90NiFe, W93NiFe, and W95NiFe. Tungsten-nickel-iron alloys are composed of tungsten as the base material with a small amount of nickel, iron, and other alloying elements. They possess the following characteristics: high density (~18.8 g/cm³) and adjustable, strong ability to absorb high-energy rays (with a ray absorption coefficient 1/3 higher than that of lead), low thermal expansion coefficient (4-6×10⁻⁶/℃), good plasticity, high strength and elastic modulus, processability, and weldability.