WNiFe (tungsten nickel iron alloy)

Tungsten-nickel-iron alloy is an alloy based on tungsten (about 90-98%) and adding nickel, iron, copper or other components, the specific gravity is generally 17.0-18.5. This alloy has good plasticity and machinability, good thermal conductivity and electrical conductivity, and has excellent absorption capacity for gamma rays or X rays. This alloy is mainly used in the manufacture of gyroscope rotors, guide devices and shock absorbers for aviation and spacecraft; die-casting molds, tool holders, boring bars and automatic watch weights for machinery manufacturing; riveting heads for electrical products and Switch contacts; in addition, it is also used in the manufacture of various radiation-proof shielding components, etc.

The advantages of tungsten nickel iron alloy:

1) Specific gravity: the general specific gravity is 16.5-18.75g/cm3;

2) High strength: tensile strength is 700-1000Mpa;

3) Strong ability to absorb rays: 30-40% higher than lead;

4) High thermal conductivity: the thermal conductivity of tungsten alloy is 5 times that of die steel;

5) Small thermal expansion coefficient: only 1/2-1/3 of iron or steel,

6) Good electrical conductivity; widely used in lighting and welding industries because of its good electrical conductivity

7) Has good weldability and processability.

In view of the above-mentioned excellent functions of high specific gravity alloys, it is widely used in aerospace, aviation, oil drilling, electrical instrumentation, medicine and other industries.