The 0Cr23Al5 iron-chromium-aluminum (FeCrAl) alloy bar is one of the most reliable high-temperature materials used for electric heating elements and furnace systems. With around 23% chromium and 5% aluminum, it offers excellent oxidation resistance, high electrical resistivity, and good mechanical strength even after long service hours at temperatures up to 1300°C. These properties make it a preferred choice in industries that demand stable and energy-efficient heating performance.
At DLX Alloy, we specialize in the precision manufacturing of FeCrAl alloy bars like 0Cr23Al5. Our focus on material uniformity, surface quality, and high-temperature stability ensures a long-lasting product that meets industrial and commercial heating system requirements.
Material Composition and Key PropertiesFor more details, pls directly contact us
|
Alloy Nomenclature Performance |
0Cr21Al6 |
0Cr23Al5 |
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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) |
For more details, pls directly contact us
0Cr23Al5 alloy bars are widely used in both industrial and domestic heating applications due to their combination of thermal stability and long service life.
Common applications include:
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Electric heaters and furnaces: Heating rods, coils, and elements for industrial furnaces and electric ovens.
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Ceramic and glass processing: Heating components that maintain temperature stability and resist oxidation.
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Metal heat treatment equipment: Used in annealing, sintering, and brazing furnaces.
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Home appliances: Electric stoves, dryers, and air heaters.
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Battery and solar systems: Heating components for modern clean energy systems.
Because of its long lifespan and reliable heat efficiency, 0Cr23Al5 helps reduce maintenance costs and improve overall energy utilization in heating systems.
Element
Typical Composition (%)
Fe
Balance
Cr
22.0 – 24.0
Al
4.5 – 5.5
Mn
≤0.4
Si
≤0.7
C
≤0.08
S
≤0.02
| Element | Typical Composition (%) |
|---|---|
| Fe | Balance |
| Cr | 22.0 – 24.0 |
| 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 | 1300°C |
| Electrical Resistivity (20°C) | 1.45 μΩ·m |
| Coefficient of Thermal Expansion (20–1000°C) | 14 ×10⁻⁶ /°C |
| Magnetic Property | Ferritic (magnetic) |
In the rapidly evolving heating materials market, the FeCrAl series continues to gain prominence because of its high-temperature capabilities and cost-effectiveness compared to other alloys. As global industries push for more energy-efficient solutions, materials that can maintain stable resistivity and structure over long-term operation are becoming essential.
0Cr23Al5 fits perfectly into this industrial transformation. Its excellent oxidation resistance and ability to withstand cyclic heating make it a key material in electric heating and metallurgical processes.
At DLX Alloy, we’ve observed growing adoption of FeCrAl materials across electric heating system manufacturers in Europe, Asia, and North America. Many clients are switching to 0Cr23Al5 due to its superior heat resistance, longer lifespan, and lower energy consumption, aligning with today’s sustainability-driven production trends.
DLX Company Advantage
As a professional manufacturer of high-temperature alloys, DLX Alloy has built a reputation for precision, quality, and reliability.
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Advanced Metallurgical Process: We use vacuum melting and argon-controlled casting to ensure material purity and uniform composition.
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Accurate Dimensional Control: Our alloy bars are produced with tight tolerances, providing consistent performance in heating systems.
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Superior Surface Finish: Each bar undergoes polishing and testing to prevent oxidation initiation points, improving lifespan.
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Comprehensive Testing: Every batch is tested for resistivity, mechanical strength, and oxidation behavior at elevated temperatures.
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Global Export Strength: DLX products are widely used by industrial furnace and heater manufacturers across Asia, Europe, and North America.
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Customized Manufacturing: We provide customized diameters, lengths, and compositions based on specific customer requirements.
Our expertise ensures that every 0Cr23Al5 bar leaving our factory meets strict quality and performance standards, making DLX a trusted name in high-temperature alloy solutions.
| Parameter | 0Cr23Al5 (DLX) | 0Cr21Al6 (DLX) |
|---|---|---|
| Chromium Content | 23% | 21% |
| Aluminum Content | 5% | 6% |
| Max Service Temperature | 1300°C | 1300°C |
| Oxidation Resistance | Excellent | Excellent |
| Mechanical Strength | Very Good | Good |
| Electrical Resistivity | 1.45 μΩ·m | 1.4 μΩ·m |
| Lifespan in Furnace Use | Long | Long |
| Application Focus | Electric heaters, furnaces | Heating systems, industrial use |
0Cr23Al5 is especially favored in electric heater manufacturing for its balance between strength and oxidation resistance. The slightly higher chromium content enhances corrosion resistance, making it ideal for repeated heating cycles.
The FeCrAl alloy market continues to expand as industrial heating systems evolve. Growing demand in metallurgy, electronics, and renewable energy sectors highlights the importance of reliable high-temperature materials.
In addition, governments and industries worldwide are increasingly prioritizing energy efficiency and carbon reduction, which drives the need for durable, long-lasting heating components like 0Cr23Al5. Its ability to maintain stable resistivity and oxidation resistance over time helps manufacturers achieve sustainability goals while lowering operating costs.
DLX Alloy is committed to developing and supplying advanced FeCrAl materials that meet these modern industrial challenges. Through continuous innovation and quality enhancement, we provide materials that contribute to safer, more efficient, and eco-friendly heating technologies.
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
1. What makes 0Cr23Al5 ideal for electric heater applications?
It offers a great combination of oxidation resistance, high electrical resistivity, and stable heating performance up to 1300°C.
2. Can DLX customize the bar size and shape?
Yes. We can produce custom diameters, lengths, and tolerances to match your design and performance needs.
3. Is 0Cr23Al5 magnetic?
Yes. It is a ferritic alloy, which means it exhibits magnetic properties.
4. What’s the main difference between 0Cr23Al5 and 0Cr21Al6?
0Cr23Al5 contains more chromium and slightly less aluminum, giving it enhanced corrosion resistance but similar oxidation resistance.
5. How does DLX ensure consistent quality?
Each production batch is tested under strict internal standards, including resistivity, hardness, and oxidation testing.
6. What are the common industrial uses for 0Cr23Al5?
Electric heaters, industrial furnaces, ceramic kilns, and glass melting systems.
7. How long is the lifespan of DLX 0Cr23Al5 rods in high-temperature conditions?
Typically several times longer than conventional resistance alloys, depending on operating temperature and environment.
8. Can this alloy be used in controlled atmosphere furnaces?
Yes. Its excellent oxidation resistance makes it suitable for air or controlled atmosphere heating systems.