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Kanthal A1 FeCrAl Wire
FeCrAl wire is mainly composed of iron, chromium and aluminum. It is used in various resistance and high temperature applications. It has the characteristics of large resistivity, small temperature coefficient of resistance, good oxidation resistance and high temperature resistance.
Composition
| FeCrAl Series |
C, ≤ |
Si, ≤ |
Mn, ≤ |
P, ≤ |
S, ≤ |
Cr |
Ni, ≤ |
Al |
Fe |
| 1Cr13Al4 |
0.12 |
0.70 |
0.50 |
0.025 |
0.02 |
12.0-15.0 |
0.60 |
4.0-6.0 |
Bal. |
| 0Cr20Al3 |
0.08 |
0.70 |
0.50 |
0.025 |
0.02 |
18.0-21.0 |
0.60 |
3.0-4.2 |
Bal. |
| 0Cr23Al5 |
0.06 |
0.60 |
0.50 |
0.025 |
0.02 |
20.5-23.5 |
0.60 |
4.2-5.3 |
Bal. |
| 0Cr25Al5 |
0.06 |
0.60 |
0.50 |
0.025 |
0.02 |
23.0-26.0 |
0.60 |
4.5-6.5 |
Bal. |
Specific Resistance
| Grade |
Diameter, mm |
Specific Resistance, μΩ⋅m at 20 °C |
| 1Cr13Al4 |
0.20-10.0 |
1.25±0.08 |
| 0Cr20Al3 |
1.23±0.07 |
| 0Cr23Al5 |
1.35±0.06 |
| 0Cr25Al5 |
1.42±0.07 |
Properties
| Grade |
Service temperature (°C), Max |
Melting point (°C) |
Density (g/cm3) |
Specific heat, J/(g⋅K) |
Thermal conductivity at 20 °C, W/(m⋅K) |
Expansion coefficient, 20-1000 °C, 10-6/K |
| 1Cr13Al4 |
950 |
1450 |
7.40 |
0.49 |
15 |
15.4 |
| 0Cr20Al3 |
1100 |
1500 |
7.35 |
0.49 |
13 |
13.5 |
| 0Cr23Al5 |
1300 |
1500 |
7.25 |
0.46 |
13 |
15.0 |
| 0Cr25Al5 |
1300 |
1500 |
7.25 |
0.46 |
13 |
15.0 |
Notes: Kanthal is a trademark of Sandvik company, we do not sell any products of this company.
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