High Temperature Iron Chrome OhmAlloy145 FeCrAl Alloy 0Cr21Al6Nb A1
Heating Resistance Wire
General Introduction:
0Cr21Al6Nb is a type of high-temperature resistant alloy. It is a
specific composition of metals that is commonly used in heating
elements, industrial furnaces, and other high-temperature
applications. This alloy typically contains chromium (Cr), aluminum
(Al), niobium (Nb), and possibly other elements in specific
proportions to achieve the desired properties for its intended use.
Main Features:
1. High Temperature Resistance: 0Cr21Al6Nb exhibits excellent resistance to high temperatures,
making it suitable for use in applications where exposure to
elevated temperatures is common.
2. High Electrical Resistance: This alloy has high electrical resistance, which is beneficial for
applications requiring electrical heating elements.
3. Good Oxidation Resistance: 0Cr21Al6Nb shows good resistance to oxidation, helping to maintain
its properties and performance in high-temperature oxidizing
environments.
4. Mechanical Stability at High Temperatures: The addition of niobium provides improved high-temperature
strength and stability, reducing the risk of deformation or
mechanical failure under heat stress.
5. Creep Resistance: 0Cr21Al6Nb has good creep resistance, allowing it to withstand
prolonged exposure to high temperatures and mechanical stress
without significant deformation.
Why 0Cr21Al6nb need to add Niobium? What is main advantage?
1. Improved High-Temperature Strength: Niobium helps enhance the high-temperature strength of the alloy,
making it more resistant to deformation and mechanical failure at
elevated temperatures.
2. Stability at High Temperatures: The addition of niobium contributes to the stability of the
alloy's microstructure at high temperatures, ensuring consistent
performance over extended periods of use.
3. Creep Resistance: Niobium aids in improving the creep resistance of the alloy, which
is crucial for applications where the material is subjected to
prolonged exposure to high temperatures and mechanical stress.
4. Oxidation Resistance: Niobium can also enhance the oxidation resistance of the alloy,
helping to protect it from degradation when exposed to
high-temperature oxidizing environments.
Overall, the addition of niobium to 0Cr21Al6nb results in an alloy
with superior mechanical properties and performance characteristics
at high temperatures, making it well-suited for demanding
applications in industries such as heating elements, industrial
furnaces, and aerospace.
| 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?
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the shipping costs.
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What is the lead time?
Usually sample lead time is 7 days after payment has been
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