FeCrAl (0Cr23Al5)

Key Features:

  1. FeCrAl Cr23Al5 provides outstanding oxidation resistance
  2. Low temperature coefficient of electric resistivity
  3. Operable up to 1250oC.
  4. Ideal for industrial furnace heating applications
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About FeCrAl (0Cr23Al5)

FeCrAl 0Cr23Al5 has great resistance to oxidation and corrosion in sulfur based conditions. Very high service temperature and prolong life. Due to its higher electric resistivity, lower density and superior heat resistance as compare to austenitic stainless steels, it is an ideal material for a variety of industrial heating operations. Large magnitudes of chromium and aluminum enhance resistance to oxidation and contamination.

Iron-Chromium-Alloy (FeCrAl) heating resistance alloys have high temperature creeping strength, good emissivity, nominal thermal expansion, small elastic modulus and excellent resistance to scaling and thermal shock. Moreover, good strength and ductile nature at the formation temperatures.

FeCrAl 0Cr23Al5 Heating Material Applications

Industrial infrared heaters, radiators, coils for air heaters, furnace parts, space heating, fiber shielding material in ceramic glass top temperature, ceramic elements for panel heaters, heating plates, cartridge heaters, hair dryers, mica elements for irons, heating wires or cables.

FeCrAl resistance heating materials are employed in the various applications from household devices to heavy industrial process heating equipments and furnaces. In the industrial heating operations, these are used as open heating coils of resistance wire installed with ceramic bushing in a metal frame or metal sheath elements that are made of helical coil of resistance wire. Normally, heating materials perform at the extremely high temperatures up to 1250oC in the metal processing industrial furnaces.

FeCrAl 0Cr23Al5 Heating Resistance Nominal Chemical Composition

Iron (Fe)                 Rem %

Chromium (Cr)         21 to 23 %

Carbon (C)              0.10 %

Aluminum (Al)         5 to 6 %


FeCrAl 0Cr23Al5 Properties

Specific resistance at 20℃ 1.35×10-6 ohm.m
Coefficient of resistance x 10(-4) ohms/ohm/oC at 20℃ to 1100℃ 0.35
Linear coefficient of expansion 15 x 10 (-6) for temperature from 20℃ to 1000℃
Highest service temperature 1250℃


Forms Produced

FeCrAl Wire FeCrAl Wire Mesh FeCrAl Heat Coil FeCrAl Strip FeCrAl Bar


Heanjia Super Metals, America offers all above forms of FeCrAl  Electric Resistance Heating alloy in all standard as well as custom specifications.