Resistance heating strip

Strip in a wide range of alloys optimized for use in electrical resistance and high-temperature applications. Standard sizes range from thickness 0.10 to 3.5 mm (0.0039 to 0.1378 inch) and width 4-195 mm (0.157-7.68 inch).

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Our wide range of resistance heating alloys in strip form makes it possible to select the most appropriate grade and size for each respective application, resulting in optimum end-product performance. The consistent resistivity from delivery to delivery facilitates trouble-free production.

Resistance heating alloys in strip form

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 300ºC (570ºF).
Cuprothal® CuNi alloys Medium- and low-resistivity copper-nickel alloys for use up to 150ºC (300ºF).

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


Size range

Thickness: 0.10-4 mm (0.00394-0.157 inch)
Width: 4-200 mm (0.157-7.874 inch)
Other sizes can be delivered on request.

Resistance tolerance

Standard resistance tolerance for strip is ± 5%, but strip with closer resistance tolerance can be delivered on request.

Delivery forms

Kanthal® resistance heating strip is supplied in coils with an internal diameter of Ø 400 mm or in straightened lengths.


Each coil of strip is supplied with a label or tag showing alloy type, nominal size, tara and net weight, resistance Ω/m (Ω /ft) and charge number

Kanthal® grade Max. cont. operating temp. ºC/ºF Resistivity at 20ºC (68ºF) Ώ mm2m-1 / 68ºF Ώ/cmf
FeCrAl alloys
Kanthal® APM 1425/2600 1.45/872
Kanthal® A-1 1400/2550 1.45/872
Kanthal® AF 1300/2370 1.39/836
Kanthal® D 1300/2370 1.35/812
Alkrothal® 14 1100/2010 1.25/744
NiCr alloys
Nikrothal® 80 1200/2190 1.09/656
Nikrothal® 70 1250/2280 1.18/709
Nikrothal® 60 1150/2100 1.11/668
Nikrothal® 40 1100/2010 1.04/626
CuNi alloys
Cuprothal® 49 600/1110 0.49/295