Resistance Heating wire
Resistance heating wire and resistance wire
Round and flat resistance heating wire and resistance wire with bright annealed or oxidized surface, depending on size. Round resistance wire sizes up to 0.40 mm (0.0157 inch) are available with insulation and coating.
resistance heating wire and resistance wire is characterized by consistent resistivity from delivery to delivery, facilitating trouble-free production.
Resistance heating alloys and resistance alloys
The wide range of resistance heating alloys and resistance alloys in wire form makes it possible to select the most appropriate grade and size for each respective application, resulting in optimum end-product performance.
List of resistance heating alloys and resistance alloys
| Type of alloy | Description |
| FeCrAl alloys | High-resistivity iron-chromium-aluminium alloys for use up to 1400ºC. |
| NiCr alloys | High-resistivity nickel-chromium alloys for use up to 1250ºC. |
FeCrAl alloys are available as both conventional resistance heating alloys and powder metallurgical alloys.
Product forms and size range
Round wire
0.010-12 mm (0.00039-0.472 inch)
Other sizes are available on request.
Ribbon (flat wire)
Thickness: 0.023-0.8 mm (0.0009-0.031 inch)
Width: 0.038-4 mm (0.0015-0.157 inch)
Width/thickess ratio max 40, depending on alloy and tolerance
Other sizes are available on request.
Stranded wire
Some resistance heating alloys and pure nickel are available as stranded wire.
Resistance tolerance
Standard resistance tolerance for wire is listed in the following table. Wire can be supplied to closer tolerance on request.
The data is valid at 20°C (68°F).
| Wire size Ø mm (inch) | Resistance tolerance % |
| <0.127 (0.005) | +/- 8 |
| >0.127 (0.005) | +/- 5 |
Delivery forms
resistance wire is delivered on spools, in coils, in pail pac or as straightened lengths.
Insulation and coating
The program includes a wide range of insulation coatings, bondable coatings and metallic coatings such as electroplating and anodizing. All coatings are available in various colors.
Marking
Each spool/package of wire is supplied with a label or tag showing alloy type, nominal size, tara and net weight, resistance W/m (W/ft), charge number and a reference number.
