Compared to W-Ni-Cu alloys, W-Ni-Fe alloys exhibit higher strength and ductility. However, W-Ni-Fe alloys are magnetic alloys that can exert a slight disturbance or deflection on surrounding magnetic fields. As a result, they are not always the preferred tungsten alloy material for applications such as aerospace and electronic devices. In contrast, W-Ni-Cu alloys are non-magnetic, offering superior electrical conductivity and thermal conductivity—making them more suitable for components that must function in magnetic environments, such as high-voltage devices and electrode contacts.

Tungsten heavy alloys exhibit excellent performance in applications with high demands for corrosion resistance, density, machinability, and radiation shielding properties.

Industry applications: 
Nuclear radiation shielding devices, such as PET syringe shields, vial shields, isotope containers, FDG containers, multi-leaf collimators, and others; balance weights, including tungsten wire settling rods, heavy-metal boring rods, container crank camshafts, logging supports, racing car weights, alternative materials for uranium, electrothermal upsetting anvil blocks, high-voltage electrical contacts; resistance welding electrodes.