The diameter tolerance range of tungsten wire for halogen lamp varies according to the specific tungsten wire diameter and application. The following is the approximate range of tungsten wire for halogen lamp diameter tolerance given according to different diameter ranges:
For thinner tungsten wires with diameters between 0.02mm and 0.5mm, the diameter tolerance is usually expressed in unit length weight, that is, the weight of tungsten wire per 200 mm (mg/200mm). The standard diameter tolerance is ±3% of the weight standard, but according to application requirements, it can also be achieved.
Tight tolerances.
For thicker tungsten wires with diameters between 0.5mm and 6.5mm, the diameter tolerance is measured in millimeters (mm), and the tolerance is usually expressed as a percentage of the diameter. The standard tolerance range is ±1.5% of the diameter, but it can also be adjusted according to specific needs.
In addition, there are specific standards for the deviation values allowed for the quality and diameter of the wire segments for tungsten wires used in lighting and electronic equipment. These standards usually give different quality deviation and diameter deviation requirements based on the diameter range of the tungsten wire. For example, for tungsten wires with diameters of 8μm to 130μm, the quality deviation of a 200mm wire segment may be divided into Grade 0, Grade I and Grade II, corresponding to different deviation ranges. For tungsten wires with a diameter greater than 130μm, there will also be corresponding regulations for diameter deviation and quality deviation.
More details of tungsten wires, please visit website: http://tungsten.com.cn/tungsten-wires.html
Please contact CHINATUNGSTEN for inquiry and order of tungsten needles:
Email: sales@chinatungsten.com
Tel.: +86 592 5129595
