The 1Cr13Al4 alloy rod is a ferritic stainless steel material that combines chromium and aluminum to achieve excellent oxidation and corrosion resistance at elevated temperatures. At DLX Alloy, we focus on delivering consistent quality and custom-tailored specifications for industrial applications requiring stable mechanical strength and surface durability in harsh thermal environments.
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1Cr13Al4 is primarily an iron-chromium-aluminum (FeCrAl) alloy with a controlled amount of aluminum that enhances its oxidation resistance. The material typically contains around 13% chromium and 4% aluminum, with trace elements adjusted to optimize heat resistance and ductility. Unlike austenitic steels, this ferritic structure provides superior performance in oxidizing atmospheres and high-temperature exposure, making it ideal for heating systems, furnace structures, and electric heater components.
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Alloy Nomenclature Performance |
1Cr13Al4 |
0Cr21Al6 |
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 |
|
|
-- |
-- |
-- |
-- |
-- |
-- |
-- |
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|
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 |
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|
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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1Cr13Al4 alloy rods are used in various high-temperature industrial environments where both oxidation and corrosion resistance are required. Common applications include:
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Furnace framework components and supports
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Electric heating elements and resistor rods
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Industrial dryers and heat exchangers
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Heating plates, muffles, and heat treatment fixtures
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Automotive exhaust components and temperature sensors
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Kiln and incinerator internal supports
At DLX Alloy, we supply precision-drawn and machined 1Cr13Al4 rods with tight dimensional tolerances, ensuring consistent performance and easy integration into automated production lines.
Industry Analysis and Trends
The demand for high-temperature corrosion-resistant materials has been steadily growing, particularly in the fields of energy, environmental technology, and advanced manufacturing. The shift toward energy-efficient heating systems and cleaner combustion environments requires materials that can maintain stability over long operational cycles.
1Cr13Al4’s ferritic base offers an economical alternative to higher nickel-based alloys, balancing cost efficiency and performance for mid-temperature environments (up to 950°C). Its resistance to scaling and oxidation extends the lifespan of heating and furnace components, aligning with the industry’s focus on sustainability and operational cost reduction.
As global industries transition toward decarbonization and more electric-driven systems, the need for materials like 1Cr13Al4 is increasing. It fits perfectly into electric heating applications, high-temperature furnaces, and clean energy equipment manufacturing.
| Parameter | 1Cr13Al4 Alloy | 0Cr15Al5 | 0Cr21Al6Nb | 0Cr25Al5 |
|---|---|---|---|---|
| Chromium (Cr) Content | 13% | 15% | 21% | 25% |
| Aluminum (Al) Content | 4% | 5% | 6% + Nb | 5% |
| Max Operating Temp (°C) | 950°C | 1050°C | 1250°C | 1300°C |
| Oxidation Resistance | Excellent | Excellent | Superior | Superior |
| Mechanical Strength | High | High | Very High | High |
| Corrosion Resistance | Good | Very Good | Excellent | Excellent |
| Main Structure | Ferritic | Ferritic | Ferritic | Ferritic |
| Application Focus | Furnaces, heaters | Heating wires | Electric furnaces | Industrial heating elements |
DLX Alloy has extensive experience in FeCrAl alloy production. Our factory utilizes vacuum melting and intermediate frequency furnaces to ensure uniform composition and minimal impurities. The use of precision drawing, annealing, and machining processes guarantees stable mechanical performance and excellent surface quality.
We focus on three core strengths:
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Customizable Compositions – DLX can modify Al and Cr content or introduce trace elements such as Nb or Mo for higher oxidation resistance.
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Tight Dimensional Tolerances – Our rods are produced with strict size control, ensuring compatibility with automated welding and assembly.
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Consistent Batch Quality – Each batch undergoes advanced metallographic and oxidation resistance testing before shipment.
Comparison with Other Alloys
While alloys like 0Cr21Al6Nb and 0Cr25Al5 are designed for higher temperatures, 1Cr13Al4 provides an ideal balance between cost, formability, and temperature resistance. For furnace shells, supports, or heating tubes where working temperatures remain below 950°C, 1Cr13Al4 offers an optimal performance-to-cost ratio.
Moreover, its magnetic ferritic structure allows for easier cutting, forming, and machining compared to high-nickel alloys. This makes it widely used in component manufacturing and retrofitting environments where cost control is key.
As industrial heat treatment and energy systems continue evolving, materials like 1Cr13Al4 will play a vital role in bridging the gap between traditional stainless steels and advanced high-temperature alloys. DLX Alloy continues to invest in material innovation and precision production technologies to meet future demands for longer service life and environmental efficiency.
We see growing adoption of ferritic heat-resistant materials in battery drying systems, waste gas treatment units, and next-generation electric furnace designs—all areas where 1Cr13Al4 rods are already proving their reliability.
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 is the maximum operating temperature of 1Cr13Al4 alloy rods?
The alloy performs best below 950°C in continuous operation, maintaining excellent oxidation resistance and mechanical integrity.
2. Is 1Cr13Al4 magnetic?
Yes, it has a ferritic structure, making it magnetic and suitable for certain electrical or mechanical applications.
3. What’s the difference between 1Cr13Al4 and 0Cr15Al5?
0Cr15Al5 has slightly higher aluminum and chromium content, offering better oxidation resistance but at a higher cost. 1Cr13Al4 is preferred for moderate-temperature systems.
4. Can DLX customize the chemical composition?
Yes, we can adjust chromium, aluminum, or add stabilizing elements like Nb or Ti based on customer requirements.
5. Is 1Cr13Al4 suitable for welding?
It can be welded using standard ferritic stainless techniques, though preheating and controlled cooling are recommended.
6. How does 1Cr13Al4 perform in oxidizing atmospheres?
It forms a stable aluminum oxide film that prevents further scaling, even during prolonged heat exposure.
7. What are the typical mechanical properties?
At room temperature, it offers high yield strength and excellent resistance to creep deformation up to 900°C.
8. Does DLX provide machining services for 1Cr13Al4 bars?
Yes, DLX provides cut-to-length, surface polishing, and machining based on drawings to support customized applications.