Tungsten wire has a high melting point and can withstand extremely high temperatures without melting or deformation; it has a high resistivity, which is 5.3×10^-8 at room temperature; it has good strength and high tensile strength; it has a low vapor pressure and a slow evaporation rate; it has good ductility and can be drawn into very fine wires while maintaining its strength and other properties; it has high surface quality requirements, and the surface must be smooth, free of mold spots, cracks, burrs, pits, and grooves. The surface of black tungsten wire is uniformly black, and slight bluing is allowed. The surface of white tungsten wire is silvery white or silver gray.
Tungsten filament product details
Tungsten filament
Tungsten wire
