In high-temperature industries such as heat treatment, metallurgy, and power generation, material performance under continuous heat exposure determines the efficiency and reliability of the entire system. One of the most trusted materials for these demanding environments is the 1Cr13Al4 heat resistant steel bar. As a professional manufacturer, DLX Alloy specializes in producing this alloy with advanced precision technology, ensuring durability, strength, and oxidation resistance for long-term furnace applications.
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The 1Cr13Al4 alloy belongs to the ferritic class of FeCrAl (iron-chromium-aluminum) materials. Its composition—approximately 13% chromium and 4% aluminum—provides an excellent balance between heat resistance, oxidation protection, and mechanical strength. The aluminum in the alloy helps form a dense oxide layer on the surface, preventing further oxidation, while chromium enhances corrosion resistance and stability at high temperatures.
DLX Alloy manufactures 1Cr13Al4 bars using vacuum melting and precision rolling processes to guarantee high purity, uniform structure, and dimensional accuracy. The result is a material that maintains strength and performance at temperatures up to 1000°C, making it ideal for furnace and heating components.
Alloy Nomenclature Performance | 1Cr13Al4 | 0Cr21Al6 | 0Cr21Al4 | 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) |
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Typical Chemical Composition (wt%)
| Element | Fe | Cr | Al | Si | Mn | C | P | S |
|---|---|---|---|---|---|---|---|---|
| Content | Balance | 12–14 | 3–5 | ≤0.7 | ≤0.6 | ≤0.08 | ≤0.03 | ≤0.02 |
Physical and Mechanical Properties
| Property | Typical Value | Description |
|---|---|---|
| Density | 7.3 g/cm³ | Moderate weight and good strength |
| Max Operating Temperature | 1000°C | Reliable high-temperature resistance |
| Electrical Resistivity | 1.30 μΩ·m | Suitable for heating systems |
| Oxidation Resistance | Excellent | Forms stable oxide film |
| Melting Point | ~1480°C | High thermal endurance |
| Hardness | 180–210 HB | Retains strength under heat |
| Thermal Expansion | Low | Reduces deformation in heating cycles |
Comparison Table: 1Cr13Al4 vs Similar FeCrAl Alloys
| Alloy | Cr (%) | Al (%) | Max Temp (°C) | Oxidation Resistance | Common Applications |
|---|---|---|---|---|---|
| 1Cr13Al4 | 13 | 4 | 1000 | Very Good | Furnace rods, heat exchangers |
| 0Cr15Al5 | 15 | 5 | 1100 | Excellent | Heating bars, elements |
| 0Cr21Al6 | 21 | 6 | 1250 | Outstanding | Electric furnaces, heaters |
| 0Cr19Al3 | 19 | 3 | 1000 | Good | Kilns, drying systems |
| 0Cr23Al5 | 23 | 5 | 1300 | Superior | Industrial furnaces |
1Cr13Al4 is particularly cost-effective for moderate-temperature environments where excellent oxidation resistance and long lifespan are required without the need for extremely high-temperature performance
1. Furnace Components
The 1Cr13Al4 steel bar is ideal for manufacturing furnace fixtures, supports, and structural parts exposed to repeated heating cycles. Its low thermal expansion minimizes deformation during long-term operation.
2. Industrial Heating Systems
Used in electric and gas furnaces, the alloy provides stable heating efficiency and strong resistance to scaling, making it a dependable choice for heating elements and structural rods.
3. Metallurgical Processing Equipment
Applicable in steel and alloy production lines, 1Cr13Al4 bars can withstand oxidizing and high-temperature atmospheres in smelting and annealing operations.
4. Chemical and Petrochemical Plants
Due to its corrosion and oxidation resistance, it’s suitable for heat exchangers, reactors, and other thermal components exposed to corrosive gases.
5. Automotive Exhaust and Sensor Systems
In modern automotive engineering, this alloy ensures reliability in exhaust control and thermal sensor applications under high thermal stress.
Industry Analysis
With industrial heating systems becoming more energy-efficient and automated, there’s a growing demand for materials that can endure heat, corrosion, and oxidation without frequent maintenance. Ferritic FeCrAl alloys, such as 1Cr13Al4, are gaining attention due to their stability, affordability, and long lifespan compared to conventional steels.
The global market for heat-resistant materials is being driven by several trends:
Transition to Cleaner Energy: The growth of electric furnaces and induction heating equipment increases the use of oxidation-resistant alloys.
Longer Service Life Requirements: Manufacturers seek materials that reduce replacement frequency and downtime.
Cost Efficiency: Alloys like 1Cr13Al4 offer high performance at lower costs than superalloys, making them ideal for standard industrial applications.
DLX Alloy responds to these trends by continually upgrading its production processes and alloy quality standards, ensuring clients receive products that deliver both technical and economic advantages.
Why Choose DLX Alloy
DLX Alloy is a trusted manufacturer and supplier of heat-resistant alloy materials with strong expertise in FeCrAl production. Our 1Cr13Al4 steel bars stand out due to precision engineering, reliability, and consistent performance.
Our Advantages Include:
Advanced Manufacturing Technology
DLX Alloy uses vacuum melting and precision rolling equipment to achieve purity, fine grain structure, and stable composition.Strict Quality Control
Every batch is tested for mechanical strength, oxidation performance, and dimensional accuracy before shipment.Customized Production
We provide various diameters, lengths, and tolerances to meet specific customer requirements.Strong R&D Capability
Our research team focuses on continuous alloy innovation and application optimization to serve evolving industry needs.Global Supply Chain
DLX Alloy exports to multiple regions, ensuring fast delivery and stable supply for clients worldwide.Sustainability Commitment
We prioritize eco-friendly manufacturing, emphasizing recycling and low-emission production practices.
By focusing on both performance and sustainability, DLX Alloy provides customers with reliable materials that perform in the toughest environments.
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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1. What is 1Cr13Al4 alloy?
It is a ferritic FeCrAl heat-resistant alloy containing around 13% chromium and 4% aluminum, designed for use in high-temperature environments.
2. What is the maximum operating temperature of 1Cr13Al4?
The alloy can work continuously at temperatures up to 1000°C.
3. What are the main applications of 1Cr13Al4 bars?
They are commonly used in furnaces, heat exchangers, and industrial heaters where oxidation and scaling resistance are required.
4. How does DLX Alloy ensure product consistency?
All products undergo chemical analysis, hardness testing, and oxidation evaluation to maintain international quality standards.
5. Can 1Cr13Al4 be customized in size?
Yes, DLX Alloy can produce customized diameters and lengths according to customer drawings or requirements.
6. What’s the advantage of using ferritic FeCrAl alloys?
They provide excellent oxidation resistance, high thermal stability, and cost-effective performance compared to standard stainless steels.
7. Is 1Cr13Al4 suitable for corrosive environments?
Yes, the alloy’s chromium and aluminum content provide solid protection in oxidizing and slightly corrosive atmospheres.
8. Where are DLX Alloy’s products mainly used?
They are widely used in energy, metallurgy, ceramics, and chemical processing industries worldwide.