FeCrAl element wire is a high-resistivity ferritic alloy made primarily from iron (Fe), chromium (Cr), and aluminum (Al). This combination offers exceptional oxidation resistance, high temperature strength, and long service life. The aluminum forms a dense Al₂O₃ (alumina) protective layer on the surface when heated, preventing further oxidation and allowing continuous operation at elevated temperatures of up to 1400°C.
At DZX, we manufacture FeCrAl wires to ASTM and international specifications, providing a Kanthal A1 equivalent material with precise control over resistivity, tensile strength, and surface quality. The wire is available in a range of diameters for different air heating systems and electrical heating devices.
The global shift toward energy-efficient and electric-based heating systems is increasing demand for FeCrAl element wire. Industries are replacing traditional combustion-based systems with clean electric heating technologies, where FeCrAl’s high-temperature endurance, consistent resistivity, and oxidation stability provide significant performance advantages.
DZX has observed growing adoption of FeCrAl wire in HVAC manufacturing, process heating, and new-generation industrial automation systems. Manufacturers are looking for materials that combine long service life with minimal maintenance and energy efficiency, and FeCrAl fits that need perfectly.
Alloy Nomenclature Performance | 1Cr13Al4 | 0C r25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 |
Chemical Compostion (%) | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 |
Re | Opportune | Opportune | Opportune | Opportune | Opportune | Opportune | Opportune |
Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest |
| -- | -- | -- | -- | -- | -- | -- |
Max.Continuous service temp. of element |
950 |
1250 |
1250 |
1250 |
1100 |
1350 |
1400 |
Resistivity at 20C(μΩ.m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 |
Density(g/cm) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 |
Thermal Conductivity(KJ/m.h) |
52.7 |
46.1 |
63.2 |
60.2 |
46.9 |
46.1 |
-- |
Coefficient of lines expansion(αx10-6/℃)
| 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 |
Melting Point Approx(degree) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 |
Tensile Strength(N/mm) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 |
Elongation at rupture(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 |
Variation of area(%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 |
Repeat Bending frequency(F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 |
Hardness(H.B.) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 |
continuous service time(Hours/ ºC) | -- | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥80/1350 | ≥80/1350 |
Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite |
Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
Shape | Size (mm) |
Wire | 0.05-7.5 |
Rod | 8-50 |
Ribbon | (0.05-0.35)*(0.5-6.0) |
Strip | (0.5-2.5)*(5-180)
|
Comparison Table
| Property | FeCrAl Element Wire | NiCr Wire |
|---|
| Composition | Fe-Cr-Al | Ni-Cr |
| Max Operating Temperature (°C) | 1300–1400 | 1100–1200 |
| Oxidation Resistance | Excellent | Good |
| Electrical Resistivity (μΩ·m) | 1.35–1.50 | 1.09–1.12 |
| Cost Efficiency | High | Medium |
| Density (g/cm³) | 7.1 | 8.4 |
| Mechanical Strength at High Temp | High | Medium |
| Common Applications | Air Heaters, Furnaces | Ovens, General Heating |
Article: FeCrAl Element Wire – Reliable Heating Alloy for Modern Air Heater Systems
In today’s world of efficient and clean energy heating, FeCrAl element wire has become one of the most dependable materials for air heaters, furnaces, and industrial heating systems. At DZX, we produce high-purity FeCrAl wires that deliver outstanding stability, durability, and temperature performance for a wide range of applications.
The key advantage of FeCrAl wire lies in its aluminum oxide layer. When exposed to heat, the aluminum in the alloy forms a thin, stable Al₂O₃ layer that acts as a protective barrier against oxidation and scaling. This feature ensures long service life and consistent resistivity, even during prolonged exposure to high temperatures.
Our FeCrAl element wire is considered equivalent to Kanthal A1 in both composition and performance. It’s ideal for air heaters, duct systems, and electrical heating appliances, providing uniform heat distribution and minimal degradation over time. With operating capabilities reaching up to 1400°C, it’s built to handle extreme environments where standard heating materials fail.
At DZX, we take pride in manufacturing FeCrAl wires using vacuum melting and precision drawing processes to achieve consistent microstructure and resistivity. Each spool undergoes strict quality inspection, including resistivity testing, mechanical strength measurement, and surface oxidation analysis. This ensures every product meets industrial and laboratory-grade requirements.
Compared to traditional NiCr wire, FeCrAl offers a higher maximum temperature, better oxidation protection, and a lighter weight due to its lower density. It also maintains electrical stability over a longer lifespan, reducing downtime and replacement costs. These features make it the preferred choice for manufacturers looking for reliable and cost-effective heating elements.
The industry trend toward electrification has accelerated demand for materials that can deliver precise, efficient, and clean heat. FeCrAl fits perfectly into this trend, being used in HVAC systems, laboratory furnaces, food processing heaters, and drying equipment. Its stability and resistance to corrosion allow it to perform consistently even under constant heating and cooling cycles.
At DZX, we focus on custom engineering—offering wires with specific resistance values, diameters, and coil forms to match different design requirements. Whether for industrial heating elements or small air heater coils, we can provide customized FeCrAl wire solutions that ensure energy efficiency and thermal stability.
Our customers appreciate the long operational lifespan of DZX FeCrAl element wire. It performs reliably for thousands of hours, even in demanding air heater systems where uniform heat and stable resistance are essential. The energy savings and reduced maintenance needs make it a preferred material across multiple industries.
In a competitive heating market, DZX stands out by offering consistent quality, technical support, and advanced production capability. We don’t just supply alloy wire — we provide comprehensive heating material solutions that help manufacturers achieve better performance and reliability in their systems.
From industrial duct heaters to household heating devices, DZX FeCrAl wire ensures dependable, efficient, and safe performance. The combination of high-temperature stability, oxidation resistance, and customizable resistivity makes it a cornerstone for next-generation electric heating systems.
In summary, DZX’s FeCrAl element wire combines durability, efficiency, and precision for modern heating applications. As industries move toward smarter and cleaner thermal technologies, our FeCrAl wire stands ready to meet these evolving demands — offering unmatched performance, quality, and longevity.




Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications.For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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1. What is FeCrAl element wire made of?
It’s an alloy of iron, chromium, and aluminum that forms a protective oxide layer, giving it excellent high-temperature stability.
2. What temperature can FeCrAl wire withstand?
FeCrAl wire can operate continuously up to 1400°C, depending on the grade and environment.
3. Is FeCrAl wire similar to Kanthal A1?
Yes, DZX’s FeCrAl element wire is a Kanthal A1 equivalent, offering similar resistivity and performance characteristics.
4. Can FeCrAl wire be used for air heaters?
Absolutely. It’s designed for air heaters, duct heaters, and convection systems, where consistent heat generation is essential.
5. How does FeCrAl compare to NiCr wire?
FeCrAl operates at higher temperatures, has better oxidation resistance, and generally lasts longer in high-heat environments.
6. Does DZX offer custom resistance values or diameters?
Yes, DZX manufactures customized FeCrAl wire based on specific resistivity, diameter, and length requirements.
7. How does FeCrAl wire maintain stability under thermal cycling?
The aluminum oxide layer maintains structural integrity and prevents oxidation, ensuring consistent resistivity even after repeated heating cycles.
8. What industries commonly use FeCrAl wire?
Industries like HVAC, appliance manufacturing, metallurgy, and chemical p