FeCrAl rod bar is one of the most dependable resistance materials for modern high-temperature systems. At DZX, we have focused on developing FeCrAl alloys that can withstand extreme thermal environments while maintaining stable resistivity and long operational life.
Material Overview
FeCrAl stands for Iron-Chromium-Aluminum alloy, a ferritic material well known for its high resistivity and exceptional oxidation resistance. The addition of aluminum enables the formation of a protective alumina (Al₂O₃) layer during heating. This protective film prevents surface degradation and extends the alloy’s life even under oxidizing conditions.
Unlike traditional nickel-based heating materials, FeCrAl is lighter, more cost-effective, and capable of handling temperatures that exceed 1300°C. This makes it especially suitable for electric kilns, furnace heating elements, and high-temperature processing equipment.
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)
|
FeCrAl rod bars have a wide range of uses across industries that rely on stable and consistent heating.
Industrial Furnaces & Kilns: Used in heat treatment furnaces, ceramic firing, and glass melting due to their ability to maintain structural integrity at high heat.
Electrical Heating Equipment: Ideal for heating rods, coils, and support elements in electric heaters and ovens.
Metallurgical & Chemical Plants: Used in systems that require resistance to oxidation and corrosive gases.
Electronics & Thermal Devices: Found in resistors, heating sensors, and energy conversion systems.
In each of these sectors, DZX’s FeCrAl rods perform reliably under long service cycles, ensuring reduced maintenance and consistent output.
Comparison Table: FeCrAl Rod Bar vs Other Resistance Alloys
| Property | FeCrAl Rod Bar | Nichrome Rod | Stainless Steel Heating Rod |
|---|
| Main Elements | Fe-Cr-Al | Ni-Cr | Fe-Cr-Ni |
| Max Working Temp | 1300°C | 1200°C | 900°C |
| Oxidation Resistance | Excellent | Good | Moderate |
| Resistivity (μΩ·m) | 1.35–1.45 | 1.05–1.15 | 0.70–0.80 |
| Density (g/cm³) | 7.1 | 8.4 | 7.9 |
| Thermal Expansion | Low | Medium | High |
| Service Life | Long | Medium | Short |
| Typical Applications | Kilns, Furnaces, Industrial Heaters | Ovens, Toasters, Heaters | Household Appliances |
As industries move toward cleaner and more energy-efficient systems, the demand for advanced heating materials continues to rise. FeCrAl has become the preferred choice in electric furnace design because it can operate efficiently in both oxidizing and sulfur-containing atmospheres.
In recent years, automation in furnace design has increased the need for materials with precise resistivity and mechanical uniformity — exactly what FeCrAl delivers. Moreover, industries are pushing toward electrification, replacing fossil-fuel-based heating with electric alternatives. FeCrAl’s excellent efficiency and durability make it an ideal fit for this global transition.
Why DZX FeCrAl Rod Bars Stand Out
At DZX, we’ve built our reputation around precision, consistency, and quality. Every FeCrAl rod bar we produce is designed for performance stability and long lifespan, ensuring maximum return on investment for industrial clients.
Here’s what differentiates DZX:
Strict Alloy Control:
Each melt is carefully analyzed to ensure proper Fe, Cr, and Al ratios, providing optimal resistivity and oxidation resistance.
Advanced Manufacturing:
Using precision rolling and drawing techniques, we achieve uniform diameter control and fine-grain microstructure — key factors for long-term stability.
Surface Quality:
DZX rod bars are smooth and free from cracks or surface defects, improving electrical contact and reducing premature failure.
Customization:
Whether customers need specific resistivity, lengths, or coil-ready rods, DZX offers tailored manufacturing and packaging options.
Global Standards Compliance:
Our FeCrAl rods meet ASTM, DIN, and GOST standards, ensuring reliability across international markets.
Performance and Longevity
One of the key reasons customers prefer DZX’s FeCrAl rod bar is its superior oxidation resistance. The protective alumina layer that forms during heating acts as a self-healing barrier, even if the surface is slightly damaged. This property is crucial for kiln elements and high-temperature reactors that operate continuously for thousands of hours.
Additionally, FeCrAl rods from DZX exhibit low creep rates — meaning they maintain shape and strength even after prolonged exposure to high heat. This makes them ideal for vertical or horizontal installation in furnace assemblies.
Economic and Environmental Advantages
FeCrAl is not just a high-performance material — it’s also environmentally friendly and cost-efficient. With fewer replacements and longer operational life, the overall maintenance cost is significantly reduced. The alloy’s low density also means less material is required to achieve the same resistance, making it a smart choice for both manufacturers and end users aiming to improve energy efficiency.
Market Outlook
The global heating element market continues to grow rapidly, driven by the electrification of industrial processes. FeCrAl is at the center of this transformation because it combines affordability with high-temperature endurance. DZX’s capacity to produce consistent, high-quality FeCrAl materials positions us as a preferred partner for furnace manufacturers and industrial users worldwide.
Our team works closely with engineers and product designers to match the right alloy to each application. With decades of metallurgical expertise, DZX provides complete technical support — from alloy selection to resistance calculation and post-processing guidance.
Customers choose DZX not only for the material but also for our responsiveness, engineering support, and after-sales service. When you use DZX FeCrAl rods, you’re investing in performance, reliability, and long-term stability.
Conclusion
FeCrAl rod bars are the backbone of high-efficiency electric heating systems. Their ability to endure extreme temperatures, resist oxidation, and maintain electrical stability makes them indispensable in modern kilns and furnaces. DZX continues to push the boundaries of FeCrAl technology, ensuring that our clients receive the highest quality materials designed for lasting performance.
With our combination of technical expertise, quality control, and flexible production, DZX remains a trusted supplier of FeCrAl rod bars for demanding industrial applications around the world.
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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We support all kinds of testing:
1. What is FeCrAl rod bar made of?
FeCrAl rod bar is composed mainly of iron (Fe), chromium (Cr), and aluminum (Al). This combination provides high resistivity, excellent oxidation resistance, and durability under elevated temperatures.
2. What industries use FeCrAl rod bars?
FeCrAl rods are widely used in furnaces, kilns, industrial heaters, ceramics processing, metallurgical heat treatment, and electric heating systems.
3. What temperature range can FeCrAl rods withstand?
They can operate continuously up to 1300°C, depending on the specific grade and operating conditions.
4. How does FeCrAl compare to Nichrome?
FeCrAl offers a higher maximum operating temperature and better oxidation resistance, making it ideal for long-term high-heat applications like industrial kilns.
5. Are FeCrAl rods corrosion-resistant?
Yes. The aluminum in FeCrAl forms a stable aluminum oxide (Al₂O₃) layer on the surface, which protects it from oxidation and chemical corrosion at high temperatures.
6. Can DZX provide customized FeCrAl rods?
Yes. DZX can produce FeCrAl rods in various diameters, lengths, and resistance specifications to meet different industrial requirements.
7. What standards do DZX FeCrAl rods meet?
They comply with international standards such as ASTM B603, DIN 17470, and GOST 12766.1, ensuring compatibility and reliability across global industries.
8. Why choose DZX FeCrAl rod bars?
DZX rods provide consistent resistivity, tight dimensional control, excellent surface finish, and long service life — ideal for high-performance heating systems.
