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.
