Tungsten Nickel Iron
Tungsten-based heavy alloys are also called high-density tungsten-based metals or high-density tungsten alloys, including tungsten-nickel-iron alloys (weakly magnetic) and tungsten-nickel-copper alloys (non-magnetic). According to the American standard ASTM B777-2007, tungsten-nickel-iron alloys and tungsten-nickel-copper alloys are divided into four grades, with tungsten contents of 90%, 92.5%, 95%, and 97% respectively, and the rest are nickel, iron, copper, etc.
Tungsten Nickel Iron
Sell to Korea Tungsten Nickel Iron Plate
Specifications: 30×80×180MM
Quantity: 12 pieces
Standard: ASTM B777
Features
Tungsten-nickel-iron alloy is characterized by high sintering density, good strength and plasticity, and certain ferromagnetism. It has good plasticity and machinability, good thermal conductivity and electrical conductivity, and has excellent absorption capacity for gamma rays or X-rays.
High specific gravity: generally 16.5-18.75g/cm3;
High strength: tensile strength is 700-1000Mpa;
Strong ability to absorb rays: 30-40% higher than lead;
High thermal conductivity: the thermal conductivity of tungsten alloy is 5 times that of mold steel;
Small thermal expansion coefficient: only 1/2-1/3 of iron or steel;
Good electrical conductivity; widely used in lighting and welding industries because of its good electrical conductivity;
Has good weldability and processability.
Uses
Tungsten-nickel-iron alloy is widely used and has become the main tungsten-based heavy alloy with the largest consumption. For general applications, such as counterweights, balance hammers, radiation shielding devices, etc., sintered alloys are used directly; but for applications that require high mechanical properties, tungsten-nickel-iron alloys need deformation processing and heat treatment to achieve strengthening.
Tungsten-nickel-iron alloys are mainly used to manufacture gyroscope rotors, guide devices and shock absorbers for aviation and spacecraft; die-casting molds, tool holders, boring bars and automatic watch weights for mechanical manufacturing; armor-piercing projectile cores for conventional weapons, rivet heads and switch contacts for electrical products; in addition, they are also used to manufacture various radiation shielding components.
