Electrical heating applications demand materials that not only deliver consistent performance but also last longer under extreme operating conditions. Among the most reliable options in the industry, the 0Cr25Al5 FeCrAl Bar stands out as a benchmark material for electrical heating systems. At DLX, we focus on producing FeCrAl bars that combine durability, efficiency, and cost-effectiveness, giving our clients a strong competitive advantage.
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The 0Cr25Al5 FeCrAl bar is a resistance alloy containing iron, chromium, and aluminum, with chromium at 25% and aluminum at 5%. This higher aluminum content makes it more resistant to oxidation than lower-grade FeCrAl alloys. When heated, the alloy forms a stable aluminum oxide (Al₂O₃) film on the surface, which acts as a barrier against further oxidation. This property is essential for continuous heating applications, as it allows the material to withstand up to 1400°C without losing structural integrity.
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Alloy Nomenclature Performance |
0Cr25Al5 |
0Cr21Al6 |
0Cr23Al5 |
0Cr21Al4 |
0Cr21Al6Nb |
0Cr27Al7Mo2 |
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|
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) |
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The 0Cr25Al5 FeCrAl bar is widely used in industrial and household heating systems. In industrial furnaces, it provides long service life under continuous high-temperature conditions, reducing downtime and replacement costs. In metallurgy, it plays a role in thermal processing, where reliable heating is critical to production quality. In the household appliance industry, it is a key material for electrical heaters, toasters, ovens, and other devices that rely on efficient and safe heating elements. Electronics manufacturers also value its stability in precision heating components.
Industry Trends
The demand for high-performance heating materials continues to grow as industries push for higher energy efficiency and lower maintenance costs. Global heating element markets are shifting toward alloys that can extend service life and reduce operating expenses. 0Cr25Al5 FeCrAl bars are increasingly preferred because they help manufacturers achieve longer maintenance cycles, reducing downtime while increasing overall furnace or appliance efficiency. The move toward sustainability also highlights FeCrAl’s advantage—longer product lifespans mean less frequent replacements, contributing to resource conservation.
Compared to alloys like 0Cr19Al3 , the 0Cr25Al5 variant offers superior high-temperature resistance and longer operational stability. While both alloys are excellent for furnace applications, 0Cr25Al5 is better suited for electrical heating elements that demand consistent output under extreme heat. The higher aluminum content in 0Cr25Al5 enhances its resistance to scaling and oxidation, making it ideal for long-term use in applications where replacement would be costly or disruptive.
Comparative Parameters Table
| Parameter | 0Cr25Al5 FeCrAl Bar | 0Cr19Al3 FeCrAl Bar |
|---|---|---|
| Main Composition | Fe, 25% Cr, 5% Al | Fe, 19% Cr, 3% Al |
| Max Continuous Temp (°C) | 1350–1400 | 1250–1300 |
| Oxidation Resistance | Excellent (high Al₂O₃) | Very good |
| Service Life | Longer at extreme temps | Long but shorter than 0Cr25Al5 |
| Ductility | Moderate | Slightly higher |
| Cost Efficiency | High | High |
| Applications | Electrical heating, furnaces, appliances | Furnaces, kilns, heaters |
| Customization Options | Wide | Wide |
At DLX, we pride ourselves on being more than just a supplier. We are a partner to industries worldwide that rely on reliable heating solutions. Our strengths come from strict material control, advanced manufacturing, and customized production capabilities.
Every batch of 0Cr25Al5 FeCrAl bars produced at DLX undergoes precise chemical composition control to ensure consistency. Our facilities are equipped with advanced melting and rolling equipment, allowing us to produce bars with excellent structural uniformity and surface quality. This translates to dependable performance across a wide range of heating applications.
Customization is another core advantage. Different heating systems require different bar sizes, shapes, and finishes. DLX works closely with customers to provide tailored products that match their exact technical specifications. Whether it’s a large-scale industrial furnace or a compact household appliance, our FeCrAl bars are designed to integrate seamlessly.
Beyond production, DLX offers technical expertise that supports customers in selecting the right alloy grade, optimizing heating efficiency, and extending service life. This comprehensive approach ensures that our customers not only receive high-quality products but also maximize their long-term value.
As industries continue to evolve, the importance of reliable and efficient heating elements will grow. Electric heating is expected to expand across multiple sectors, driven by global energy transitions and increased demand for sustainable technologies. The 0Cr25Al5 FeCrAl bar is positioned to be at the center of this trend, thanks to its balance of cost efficiency, long service life, and high-temperature resistance.
DLX is committed to supporting this growth. With continuous investment in technology and process improvements, we aim to deliver FeCrAl solutions that keep pace with the changing needs of industries worldwide.
The 0Cr25Al5 FeCrAl bar is not just a material—it’s a solution to the challenges faced by industries and households alike when it comes to electrical heating. Its ability to perform at extreme temperatures, resist oxidation, and last longer makes it a superior choice in demanding environments. At DLX, we combine this powerful material with advanced production techniques, strict quality control, and unmatched technical support to ensure our customers always stay ahead. For those seeking long-lasting, efficient, and cost-effective heating solutions, DLX’s FeCrAl bars are the answer.
About Us:
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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FAQs
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What is 0Cr25Al5 FeCrAl bar?
It is an iron-chromium-aluminum resistance alloy bar designed for electrical heating with superior high-temperature stability. -
What is the maximum service temperature of 0Cr25Al5 FeCrAl bar?
It can operate continuously at 1350–1400°C. -
What are the main applications of 0Cr25Al5 FeCrAl bar?
It is widely used in industrial furnaces, electric heating elements, home appliances, and metallurgy equipment. -
How does 0Cr25Al5 resist oxidation?
The aluminum forms a dense Al₂O₃ film that protects against oxidation and scaling at elevated temperatures. -
What is the advantage of 0Cr25Al5 compared to lower-grade FeCrAl alloys?
It has higher aluminum content, which improves oxidation resistance and extends service life in electrical heating applications. -
Can 0Cr25Al5 FeCrAl bar be customized?
Yes, it can be supplied in different diameters, lengths, and finishes depending on customer requirements. -
How does DLX ensure quality in FeCrAl bar production?
By using precise alloy control, advanced melting and processing, and strict quality inspections. -
Why is DLX a reliable supplier for 0Cr25Al5 FeCrAl bars?
Because DLX combines consistent quality, competitive pricing, fast delivery, and strong technical support.