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1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2.
DLX
Bright Finished
0.06-10mm
ISO9001
10kg
1250℃-1500℃
7-20 days
Heating elements
Product Description
0Cr21Al4 is a FeCrAl electrical resistance alloy consisting primarily of iron, chromium and aluminum. It is designed for applications requiring electrical resistance, high-temperature oxidation resistance and dimensional stability.
The alloy's chromium and aluminum content helps form a protective oxide layer during high-temperature operation. This oxide layer helps reduce further oxidation and supports the service life of heating components under suitable operating conditions.
Compared with lower-temperature FeCrAl grades such as 1Cr13Al4, 0Cr21Al4 provides a higher maximum service temperature. DLX's technical data lists approximately 1100°C for 0Cr21Al4.
The bar and rod form can be used as a feedstock or structural component for resistance heating equipment, furnace components and customized industrial heating assemblies.
The 0Cr21Al4 Bar FeCrAl Alloy provides superior resistance to corrosion in harsh environments, including sulfur-containing and acidic atmospheres, ideal for metallurgy and chemical processing applications.
This iron-chromium-aluminum alloy maintains exceptional strength and stability at temperatures up to 1250°C, ensuring reliable performance in industrial furnaces and heat treatment systems.
The 0Cr21Al4 Bar FeCrAl Alloy forms a protective alumina (Al₂O₃) layer, offering excellent resistance to oxidation and carburization in high-temperature environments like ceramic heaters.
Its low thermal expansion coefficient enhances dimensional stability, making it a preferred choice for precision heating elements in electronics and glass production.
The 0Cr21Al4 Bar FeCrAl Alloy is easily machined and formed, allowing versatile use in manufacturing heating components and industrial equipment.
Specification
| Technical Parameters of FeCrAl Alloy | |
| Material | FeCrAl Alloy |
| Density | 7.2-7.7g/cm3 |
| Melting Point | 1250℃-1500℃ |
| Corrosion Resistance | Excellent |
| Oxidation Resistance | Excellent |
| Magnetic Property | Ferromagnetic |
| Elongation | ≥25% |
| Tensile Strength | 630-780MPA |
| Condition | Hard / Soft |
| Heat Treatment | Bright, Oxided, Acide |
| Shape | Size (mm) |
| Wire | 0.5-7.5 |
| Rod/Bar | 8.0-200 |
| Strip | (0.5-2.5)*(5-180) |
| Tube/Pipe | Custom made |
| Sheet/Plate | Custom made |
Application Field
0Cr21Al4 Bar FeCrAl Alloy is widely utilized across various industries due to its corrosion resistance and high-temperature strength. Here are five key application fields:
0Cr21Al4 can be used in components associated with industrial furnace heating systems where electrical resistance and oxidation resistance are required.
Potential applications include:
Furnace heating components
Heat-treatment equipment
Industrial heating systems
Furnace support components
The alloy can be used in selected heat-treatment equipment operating within its recommended temperature range.
FeCrAl heating alloys are used in suitable ceramic and glass processing equipment because of their resistance-heating characteristics and high-temperature oxidation resistance.
0Cr21Al4 can be considered for selected heating components where its electrical and temperature characteristics meet the equipment requirements.
0Cr21Al4 can be used in selected metallurgical heating equipment and thermal processing systems.
Our Advantage
CHANGZHOU DLX ALLOY CO., LTD. was established in 2002 and specializes in the research, development and production of special alloy materials.
DLX's product portfolio includes:
FeCrAl alloys
NiCr alloys
Nickel-based alloys
Copper-based alloys
Precision alloys
Thermocouple materials
Welding materials
Corrosion-resistant alloys
Products are available in different forms, including:
Wire
Strip
Ribbon
Bar
Tube
Plate
DLX states that its factory covers processes including melting, drawing, heat treatment, finishing and testing, and that the company has obtained ISO 9001 and SGS certifications.
For 0Cr21Al4 FeCrAl alloy bar, DLX can provide customized dimensions, surface conditions, inspection requirements and packaging according to customer specifications.
DLX focuses on special alloy materials, including FeCrAl, NiCr, nickel-based, copper-based and other industrial alloys.
Diameter, length, surface condition and other requirements can be discussed according to customer specifications.
The production process covers melting, forming, heat treatment, finishing and testing, allowing products to be supplied according to defined technical requirements.
DLX states that it has obtained ISO 9001 and SGS certifications.
The current product page lists a 10 kg MOQ. Actual MOQ should be confirmed according to alloy grade, dimensions and order requirements.
The current page lists a typical delivery time of 7–20 days. Actual lead time depends on stock, size, quantity and production schedule.
FAQ
DLX's technical data lists a maximum service temperature of approximately 1100°C for 0Cr21Al4. Actual operating temperature depends on the heating-element design and operating environment.
The electrical resistivity is approximately 1.23 μΩ·m at 20°C.
The typical DLX composition is approximately 18–21% chromium, 3–4.2% aluminum, with iron as the balance.
Yes. Its electrical resistance, oxidation resistance and high-temperature capability make it suitable for selected resistance-heating applications.
