Alkrothal 14 Ribbon
Alkrothal® 14 is a ferritic iron-chromium-aluminium alloy (FeCrAl alloy) with high resistivity suitable for use at temperatures up to 1100°C (2010°F).Typical applications for Alkrothal® 14 are in rheostats, braking resistors, etc. It is also used as electrical heating elements in industrial applications.
CHEMICAL COMPOSITION
| |
C % |
Si % |
Mn % |
Cr % |
Al % |
Fe % |
| Nominal composition |
|
|
|
|
4.3 |
Bal. |
| Min |
- |
- |
- |
14.0 |
- |
|
| Max |
0.08 |
0.7 |
0.5 |
16.0 |
- |
|
MECHANICAL PROPERTIES
| Thickness |
Yield strength |
Tensile strength |
Elongation |
Hardness |
| |
Rp0.2 |
Rm |
A |
|
| mm (in) |
MPa (ksi) |
MPa (ksi) |
% |
Hv |
| 1.0-3.0 (0.04-0.12) |
420 (61) |
550 (80) |
20 |
200 |
1) Material available:
Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30, Cr20Ni25, NiCr25FeAlY, Cr13Al4, Cr21Al4, Cr14Al4, Cr20Al4, Cr21Al6, Cr23Al5, Cr25Al5, Cr21Al6Nb, Cr25Al5SE.
2) Shape:
Wire, strip, ribbon, sheet, coil
3) About us
We can also design and manufacture according to your request. Shanghai Tankii Alloy Material Co., Ltd. is specialized in production of Ni-Cr Alloy, Cu-Ni Alloy, Fechral, thermocouple wire, pure nickel and other precision alloy materials in the form of wire, strip, rod, bar and plate.
4) Alloy character:
Ferritic alloys allow to reach process temperatures of 2192 to 2282F,
Corresponding to a resistance temperature of 2372F. All ferritic alloys have approximatively the same basis composition: 20 to 25 % of chromium, 4.5 to 6 % of aluminium, balance being iron. Some of them contain in addition rare earth, as yttrium or silicium. Those alloys having a ferritic structure, we observe, after a maintenance at high operating temperature, an important growth of the grain and a precipitation of chromium carbides at the grain joints level. This induces an increased embrittlement of the resistance, especially when it is come again at ambient temperature.
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