The 0Cr25Al5 FeCrAl alloy bar is one of the most durable and oxidation-resistant heating materials used in industrial environments today. Composed primarily of iron (Fe), chromium (Cr), and aluminum (Al), this alloy is known for maintaining stability and strength in continuous high-temperature applications. With around 25% chromium and 5% aluminum, it provides excellent resistance to scaling and oxidation, even when exposed to temperatures up to 1400°C.
At DLX Alloy, we focus on producing FeCrAl alloy bars like 0Cr25Al5 with precise chemical balance and superior surface finish. These rods are widely applied in electric furnaces, heat treatment systems, and energy-efficient heating equipment. They are especially valued for their long lifespan, stable resistivity, and excellent corrosion resistance, which make them a preferred material for industrial heating systems operating under extreme conditions.
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Alloy Nomenclature Performance |
0Cr21Al6 |
0Cr23Al5 |
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 |
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|
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 alloy bar is engineered for high-temperature and high-efficiency heating systems. Its outstanding performance in oxidation and corrosion resistance allows for consistent operation in demanding industrial environments.
Key applications include:
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Electric furnaces and kilns: Heating rods and components for metal processing and ceramics sintering.
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Heat treatment equipment: Ideal for annealing, hardening, and tempering furnaces.
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Chemical processing equipment: Used where stability in oxidizing or corrosive atmospheres is required.
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Glass and ceramic manufacturing: Provides uniform heating for melting and forming processes.
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Power generation systems: Heating elements for solar and thermal systems.
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Industrial ovens and dryers: Used in large-scale heating assemblies for manufacturing.
The 0Cr25Al5 alloy’s high aluminum content forms a dense alumina film on its surface during heating, which provides strong protection against oxidation—one of the main reasons it outlasts many other heating alloys.
Industry Analysis
As industries push toward energy-efficient and sustainable manufacturing, the need for materials capable of withstanding prolonged high-temperature exposure without degradation continues to rise. 0Cr25Al5 meets these requirements with its exceptional stability and resistance to environmental corrosion.
In recent years, FeCrAl alloys have increasingly replaced traditional nickel-chromium heating materials due to their higher melting points, lower cost, and better oxidation resistance. 0Cr25Al5 stands out in this category, making it a popular choice in metallurgical, electrical heating, and renewable energy sectors.
At DLX Alloy, we’ve noticed a clear trend: industrial customers are demanding more durable and energy-efficient materials for heating systems that can operate continuously without frequent replacement. The 0Cr25Al5 alloy aligns perfectly with these expectations, helping manufacturers reduce downtime and improve operational reliability.
| Element | Typical Composition (%) |
|---|---|
| Fe | Balance |
| Cr | 24.0 – 26.0 |
| Al | 4.5 – 5.5 |
| Mn | ≤0.4 |
| Si | ≤0.7 |
| C | ≤0.08 |
| S | ≤0.02 |
| Property | Typical Value |
|---|---|
| Density | 7.1 g/cm³ |
| Melting Point | 1500°C |
| Maximum Operating Temperature | 1400°C |
| Electrical Resistivity (20°C) | 1.45 μΩ·m |
| Coefficient of Thermal Expansion (20–1000°C) | 14 ×10⁻⁶ /°C |
| Magnetic Property | Ferritic (magnetic) |
DLX Alloy has built a strong reputation in the field of FeCrAl materials by delivering consistent quality and high-performance products. We combine metallurgical expertise with advanced production technology to ensure every rod meets the strictest performance standards.
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Vacuum Melting Process: Ensures chemical purity and uniform composition throughout the bar.
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High-Precision Drawing and Rolling: Guarantees accurate dimensions and smooth surfaces.
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Superior Oxidation Resistance: Our proprietary heat treatment process enhances protective alumina film formation.
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Rigorous Testing: Each batch undergoes resistivity, oxidation, and mechanical testing to ensure top performance.
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Global Reach: DLX FeCrAl alloys are supplied to customers in Asia, Europe, and North America.
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Customization: We provide tailored diameters, lengths, and tolerances based on your application needs.
Our focus is on long-term reliability—ensuring every 0Cr25Al5 bar provides stable performance and extended service life under extreme thermal conditions.
| Parameter | 0Cr25Al5 (DLX) | 0Cr23Al5 (DLX) |
|---|---|---|
| Chromium Content | 25% | 23% |
| Aluminum Content | 5% | 5% |
| Max Operating Temperature | 1400°C | 1300°C |
| Oxidation Resistance | Excellent | Very Good |
| Electrical Resistivity | 1.45 μΩ·m | 1.45 μΩ·m |
| Mechanical Strength | High | Moderate |
| Service Life | Very Long | Long |
| Application Focus | Heavy-duty industrial heating | General electric heating systems |
The 0Cr25Al5 alloy demonstrates enhanced performance in high-load, long-term operations, offering better oxidation protection and higher heat tolerance compared to 0Cr23Al5.
The global market for FeCrAl materials continues to expand, driven by industries aiming to increase energy efficiency and reduce emissions. With the rise of new-generation heating systems in metallurgy, chemical processing, and renewable energy, the demand for stable, long-lasting heating alloys like 0Cr25Al5 is expected to grow steadily.
DLX Alloy is investing in R&D to further enhance FeCrAl alloy stability, surface treatment processes, and overall heat efficiency. Our products are designed to help manufacturers transition to smarter, cleaner, and more cost-effective heating solutions.
The future of industrial heating relies on innovation, precision, and durability, and DLX Alloy is fully committed to delivering advanced materials that meet these challenges.
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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We support all kinds of testing:
FAQs
1. What temperature can 0Cr25Al5 operate at continuously?
It can operate up to 1400°C, making it suitable for extreme-temperature industrial applications.
2. What makes 0Cr25Al5 different from other FeCrAl alloys?
It has higher chromium content, providing superior oxidation resistance and structural stability.
3. Can DLX produce customized sizes of 0Cr25Al5 rods?
Yes, we can provide different diameters, lengths, and tolerances according to specific requirements.
4. Is 0Cr25Al5 suitable for both electric and gas furnaces?
Yes, its heat resistance and oxidation protection make it ideal for various furnace types.
5. How does DLX ensure product consistency?
We use vacuum melting, automated rolling, and strict quality inspection for every batch.
6. What industries commonly use this alloy?
Metallurgy, ceramics, glass production, power generation, and chemical processing.
7. How long can a 0Cr25Al5 rod last in a high-temperature furnace?
Typically, it lasts two to three times longer than conventional resistance alloys, depending on the environment.
8. Can DLX supply small trial batches for testing?
Yes, we support both small-scale testing orders and full-scale industrial supply.