Bright Annealed Soft FeCrAl Alloy 0Cr21Al6 OhmAlloy142A Heating
Resistance Round Wires
General Introduction:
0Cr21Al6 is an iron-chromium-aluminum alloy wire commonly used in
heating applications. The numbers in its name represent the
approximate composition of the alloy, with 21% chromium and 6%
aluminum. This alloy is known for its high-temperature performance,
oxidation resistance, and mechanical properties.
0Cr21Al6 wire is utilized in various heating elements, industrial
furnaces, electric ovens, and other applications where reliable
heat generation is required. It offers good oxidation resistance
due to its chromium content and can withstand high temperatures,
making it suitable for environments where heat resistance is
crucial.
With its composition of chromium and aluminum, 0Cr21Al6 provides
adequate mechanical strength and stability for heating
applications. It is valued for its durability, consistent
performance, and versatility in different industrial processes
requiring controlled heating.
What is the difference between 0Cr21Al6 and 0Cr25Al5?
Composition:
0Cr21Al6: This alloy consists of 21% chromium and 6% aluminum in
its composition.
0Cr25Al5: In contrast, this alloy contains 25% chromium and 5%
aluminum.
Alloy Ratio:
0Cr21Al6: Has a higher aluminum content (6%) compared to 0Cr25Al5.
0Cr25Al5: Contains a higher chromium content (25%) compared to
0Cr21Al6.
High-Temperature Performance:
0Cr21Al6: Provides good high-temperature performance and stability
for heating applications.
0Cr25Al5: Known for its high-temperature resistance and oxidation
resistance, making it suitable for use in environments with
elevated temperatures.
Oxidation Resistance:
0Cr21Al6: Offers good oxidation resistance due to its chromium and
aluminum content.
0Cr25Al5: Exhibits excellent oxidation resistance, making it highly
suitable for applications where resistance to oxidation is crucial.
Mechanical Properties:
0Cr21Al6: Has specific mechanical properties based on its
composition, providing adequate strength for heating applications.
0Cr25Al5: Known for its good mechanical properties and durability
under high-temperature conditions.
Applications:
0Cr21Al6: Commonly used in various heating elements, industrial
furnaces, and electric ovens.
0Cr25Al5: Widely utilized in industrial heating applications where
high-temperature resistance and oxidation resistance are essential.
In summary, the main differences between 0Cr21Al6 and 0Cr25Al5 lie
in their chromium and aluminum content, which affect their
high-temperature performance, oxidation resistance, mechanical
properties, and suitability for specific heating applications. Each
alloy offers distinct advantages based on its composition and
properties, catering to different requirements in heating
applications.
| Shape | Size (mm) |
| Wire | 0.025-8.00mm |
| Rod | 8.00-50.00mm |
| Robbin | (0.05-0.35)*(0.5-6.0)mm |
| Strip | (0.50-2.50)*(5.00-180.00)mm |
| Alloy Nomenclature Performance | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4/ 0Cr19Al3 | 0Cr21Al6Nb | 0Cr27Al7Mo2 |
| Main chemical composition | 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 |
| Rest | opportune | opportune | opportune | opportune | opportune | opportune | opportune |
| Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest |
| Others | -- | -- | -- | -- | -- | Nb 0.5 | Mo 1.8-2.2 |
| Max. continuous service temp. of element( °C ) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 |
| Resistivity at 20ºC(μΩ@m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 |
| Density(g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 |
| Thermal conductivity(KJ/m@h@ºC) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | |
| Line expansion coefficient(α×10-6/ºC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 |
| Melting point approx.( ºC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 |
| Tensile Strength(N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 |
| Elongation at break(%) | >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 | ≥50/1350 | ≥50/1350 |
| Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite |
| Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
Are you a Manufacturer or Trader?
We are a Manufacturer.
Do you provide free samples?
Yes, we can provide a free sample for testing,buyer should bear all
the shipping costs.
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What is the lead time?
Usually sample lead time is 7 days after payment has been
confirmed.
