Metallic heating elements
Ready-made metallic heating elements made from wire or strip in Kanthal® iron-chromium-aluminium alloys or Nikrothal® nickel-chromium alloys for element temperatures between 50-1425°C (120-2600°F).
We can manufacture metallic heating elements to any specifications and with short delivery times. Examples of element types are:
- Coiled elements (i.e. spiral elements and edge-wounded elements)
- ROB - Meander elements
- Cartridge elements (i.e. bundle rod elements and cage elements)
- Tubothal heating element
Metallic heating element alloys
Kanthal® and Alkrothal® FeCrAl alloys are characterized by high resistivity and capability to withstand high surface load. They can be used at maximum element temperature of 1425°C (2600°F).
The NiCr-based alloys are characterized by very good mechanical properties in the hot state as well as good oxidation and corrosion properties. They are suitable for element temperatures up to 1250°C (2282°F).
Using Kanthal® FeCrAl alloys instead of NiCr alloys results in both weight-saving and longer element life, leading to considerable cost savings. Compare weight and cost for Kanthal® FeCrAl alloys with NiCr alloys
|Grade||Maximum continuous operating temperature||Resistivity at 20ºC Ω mm2m-1 / 68ºF Ω/cmf|
|Kanthal APM||1425ºC (2600ºF)||1.45/872|
|Kanthal A-1||1400ºC (2550ºF)||1.45/872|
|Kanthal AF||1300ºC (2370ºF)||1.39/836|
|Kanthal D||1300ºC (2370ºF)||1.35/812|
|Nikrothal 80||1200ºC (2190ºF)||1.09/255|
|Nikrothal 70||1250ºC (2280ºF)||1.18/709|
|Nikrothal 60||1150ºC (2100ºF)||1.11/668|
|Nikrothal 40||1100ºC (2010ºF)||1.04/626|