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.

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Kanthal® 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 Kanthal® 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.

Resistance heating alloys (PDF document, 1.7 MB)

Properties of resistance alloys (PDF document, 1.4 MB)

Properties of resistance alloys - Cuprothal® (PDF document, 822 kB)

List of resistance heating alloys and resistance alloys

Type of alloy Description
Kanthal and Alkrothal FeCrAl alloys* High-resistivity iron-chromium-aluminium alloys for use up to 1400ºC (2550ºF).
Nikrothal NiCr alloys High-resistivity nickel-chromium alloys for use up to 1250ºC (2280ºF).
Nifethal NiFe alloys Low-resistivity nickel-iron alloys with high temperature coefficient of resistance for use up to 600ºC (1110ºF).
Cuprothal CuNi alloys Medium- and low-resistivity copper-nickel alloys for use up to 600ºC (1110ºF).

* Kanthal® FeCrAl alloys are available as both conventional resistance heating alloys and powder metallurgical alloys (Kanthal APM).

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/thickness 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

Kanthal® resistance wire is delivered on spools, in coils, in pail pack or as straightened lengths.

Insulation and coating

The Kanthal® 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.
Read more about the Kanthal® range of insulations and coatings


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.

Stock program

We have a number of frequently used products in stock. Please contact us for details.

Choose the best alloy

Select the best alloy for your home appliance heating element.
View alloy selection table