Tungsten-nickel-iron alloy is an important tungsten-based high-density alloy. By definition, it is an alloy composed of adding nickel and iron to metallic tungsten, with the nickel-iron ratio typically maintained at 7:3 or 1:1. With excellent comprehensive properties, this type of alloy is widely applied and has become the main category of tungsten-based alloys with large usage at present. 

Tungsten wire has the characteristics of high melting point, good mechanical strength, corrosion resistance and low thermal expansion coefficient, and has extensive and important applications in glass industry.

Tungsten wire exhibits excellent thermal stability in heating glass equipment due to its ultra-high melting point, low vapor pressure, excellent high temperature strength, good creep resistance (especially non-drooping tungsten wire) and low thermal expansion coefficient, making it an ideal choice for high temperature heating elements.

High temperature resistant tungsten wire plays a vital role in the glass forming process. Its unique performance is closely combined with process requirements, which significantly improves the quality and production efficiency of glass products.