Tungsten Wire By Luoyang Kekai Tungsten & Molybdenum Technology Co., Ltd.

We manufacture, export and supply Tungsten Wire to our clients in Luoyang, Henan, China.

Following are the Main Characteristics of Tungsten wire :-
Melting Point: 3410 Celsius
Boiling Point:5927 Celsius
Density: 19.2g/cm3
Diameter: 0.01-2.00mm
Type: black and cleaned
Quality standard:GB/T 4181-1997(Tungsten Wire) ASTM B760-86
Specific electrical: 0.055 Ohm x mm2/m resistance at 20 Celsius.
Modulus of elasticity: 410 kN/mm2, at 20 Celsius

Dimensions and Tolerances of tungsten wire
Tungsten wires diameters are generally expressed in terms of inches or mils (thousandths of an inch). For thin wires from .001 inches up to .020 inches in diameter, the diameter of the wire is measured by weight per unit length. That is, the weight expressed in mg of a 200 mm length of wire.

The standard diameter tolerance is 3% of the weight measurement. Closer tolerances are available, depending upon the application for the wire product.

Straightness of tungsten wire
Wire may be finished in the unstraightened or as drawn condition and is controlled to Bango's internal standards, In addition, wire can be straightened via mechanical or heat treating processes. Typically, the measure of the straightness of a tungsten wire is obtained by cutting a ten inch long piece of wire and allowing it to lie on a flat clean surface. The maximum deviation from a straight line along its length is the quantitative measure of its straightness. In general, as the degree of straightness increases.