FeCrAl Resistance Wire Series
8 Grades Covering Standard and Premium Specifications
Ferro-chromium-aluminum (FeCrAl) alloys offer outstanding performance at extreme temperatures. With maximum operating temperatures reaching 1400°C, these alloys are ideal for demanding industrial furnace and high-temperature heating applications. Our range includes 8 grades covering standard and premium specifications.
0Cr25Al5
Max 1300°C — Kanthal A-1 equivalent. Classic high-temperature FeCrAl alloy with excellent oxidation resistance.
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0Cr21Al6Nb
Max 1350°C — Niobium-enhanced FeCrAl alloy for superior high-temperature strength and creep resistance.
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0Cr23Al5
Max 1300°C — Kanthal D equivalent. Versatile FeCrAl alloy widely used in industrial heating applications.
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0Cr20Al3
Max 1100°C — Cost-optimized medium-temperature FeCrAl alloy for general industrial heating use.
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0Cr20Al6RE
Max 1300°C — Rare-earth enhanced FeCrAl wire with improved oxidation and creep resistance.
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0Cr24Al6RE
Max 1400°C — Premium rare-earth strengthened alloy for extreme temperature environments.
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0Cr27Al7Mo2
Max 1400°C — Molybdenum-bearing alloy. The most advanced FeCrAl alloy for extreme environments.
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1Cr13Al4
Max 950°C — Ferritic heat-resistant steel with good oxidation resistance for moderate applications.
View DetailsFeCrAl Alloy Grades — Specification Overview
Key properties of our ferro-chromium-aluminum resistance wire grades
Alloy Name Properties
|
1Cr13Al4 | 0Cr25Al5 | 0Cr20Al6RE | 0Cr23Al5 | 0Cr20Al3 | 0Cr21Al6Nb | 0Cr24Al6RE | 0Cr27Al7Mo2 | |
|---|---|---|---|---|---|---|---|---|---|
|
Main
Chemical Components |
Cr | 12.0-15.0 | 23.0-26.0 | 19.0-21.0 | 20.5-23.5 | 18.0-21.0 | 21.0-23.0 | 22.0-26.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-6.0 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 5.0-7.0 | 6.0-7.0 | |
| RE | Opportune | Opportune | 0.04-1.0 | Opportune | Opportune | Opportune | 0.04-1.0 | Opportune | |
| Fe | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder | |
| Other | Nb0.5 | Mo1.8-2.2 | |||||||
| Maximum operating temperature | 950 | 1300 | 1300 | 1300 | 1100 | 1350 | 1400 | 1400 | |
| Resistivity 20ºC (μΩ·m) | 1.25±0.08 | 1.42±0.07 | 1.40±0.07 | 1.35±0.07 | 1.23±0.07 | 1.45±0.07 | 1.48±0.07 | 1.53±0.07 | |
| Density (g/cm 3 ) | 7.40 | 7.10 | 7.20 | 7.25 | 7.35 | 7.10 | 7.1 | 7.10 | |
|
Coefficient of heat conductivity
(20ºC) (W/m·K) |
15 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | |
|
Average linear expansion coefficient
(20~1000ºC)(α×10 -6 /ºC) |
15.4 | 15.0 | 14.0 | 15.0 | 13.5 | 16.0 | 16.0 | 16.0 | |
| Melting point(ºC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | 1520 | |
| Tensile strength(R m /MPa) | ≥580 | ≥600 | ≥600 | ≥600 | ≥580 | ≥650 | ≥680 | ≥680 | |
| Elongation after Fracture (A/%) | ≥12 | ≥12 | ≥12 | ≥12 | ≥12 | ≥10 | ≥10 | ≥10 | |
|
Accelerated life test
(Hours/ºC) |
-- | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥80/1350 | ≥50/1350 | |
| Microscopic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetism | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
* Data per GB/T1234-2012. Contact us for detailed datasheets and custom requirements.
Why Choose FeCrAl Alloys?
Key advantages of ferro-chromium-aluminum resistance wires
Extreme Temperature Capability
FeCrAl alloys operate at temperatures up to 1400°C, exceeding most NiCr alternatives for high-temperature applications.
Aluminum Oxide Protection
A dense Al&sub2;O&sub3; surface layer provides exceptional protection against oxidation, carburization, and sulfur attack.
Cost-Effective
Iron-based alloys contain no expensive nickel, making FeCrAl significantly more affordable than equivalent NiCr grades.
High Surface Load
Higher resistivity allows higher surface power loads, meaning less material is needed for the same heating output.
Lighter Weight
Lower density than NiCr alloys means more wire length per kilogram, reducing material costs and extending element life.
Long Service Life
Excellent oxidation resistance and high-temperature stability ensure reliable performance over extended service periods.
Applications
Industries and equipment served by FeCrAl resistance wires
Industrial Furnaces
Top-loading and bottom-loading furnaces, annealing furnaces, carburizing furnaces, and heat treatment ovens up to 1400°C.
Kilns & Ceramics
Heating elements for ceramic kilns, pottery firing, metallurgical sintering, and refractory material processing.
Glass Manufacturing
High-temperature elements for glass melting, forming, annealing, and tempering processes.
Thermal Processing
Elements for brazing, soldering, stress relieving, powder metallurgy, and other thermal processing applications.