Tungsten-nickel-iron alloy is an alloy based on tungsten (about 90~98%) and added with nickel, iron, copper or other components. The specific gravity is generally 17.0~18.5.
Tungsten-nickel-iron alloy is characterized by high sintered density, good strength and plasticity, and certain ferromagnetism. Good plasticity and machinability, good thermal conductivity and electrical conductivity, excellent absorption of gamma rays or X-rays.
Large specific gravity: the general gravity is 16.5-18.75g/cm3;
High strength: tensile strength is 700-1000Mpa;
Strong ability to absorb radiation: 30-40% higher than lead;
Large thermal conductivity: the thermal conductivity of tungsten alloy is 5 times that of die steel;
The coefficient of thermal expansion is small: only 1/2-1/3 of iron or steel;
Good electrical conductivity; widely used in the lighting and electric welding industry because of its good electrical conductivity;
Has good solderability and processability.
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