Kanthal APM Construction Material
Grand Metal Corporation carries a variety of Kanthal Brand product and supply at reasonable cost.
Kanthal APM is an advanced powder-metallurgical, dispersion-strengthened, ferritic iron-chromium-aluminium alloy (FeCrAl alloy) with exceptionally good form stability and oxidation resistance. It is suitable for furnace temperatures up to 1250°C (2282°F).
The alloy offers a unique combination of excellent oxidation properties and form stability at high temperatures. Kanthal APM forms an excellent, non-scaling surface oxide, which gives good protection in most furnace environments, i.e. oxidizing, sulpidizing and carburizing gas, as well as against deposits of carbon, ash, etc.
Typical applications for Kanthal APM are in high-temperature structural parts in furnaces such as mesh belts, loaders, mounting systems for elements or insulation and loading baskets.
Useful Information of Kanthal APM Construction Material
Chemical Composition
|
Si % |
Mn % |
Cr % |
Al % |
Fe % |
|
| C % |
|
|
|
|
|
|
| Nominal composition |
- |
- |
- |
- |
5.8 |
Balance |
| Min |
- |
- |
- |
20.5 |
- |
|
| Max |
0.08 |
0.7 |
0.4 |
23.5 |
- |
|
Mechanical Properties At Elevated Temperature
| Wire size |
Yield strength |
Tensile strength |
Elongation |
Hardness |
| Ø |
Rp0.2 |
Rm |
A |
|
| mm |
MPa |
MPa |
% |
HV |
| 4 |
470 |
680 |
20 |
230 |
Creep Rupture Strength
| Time |
800°C / 1472°F |
1000°C / 1832°F |
1200°C / 2192°F |
1400°C / 2552°F |
| h |
MPa |
psi |
MPa |
psi |
MPa |
psi |
MPa |
psi |
| 100 |
15 |
2176 |
5.6 |
812 |
3.3 |
478 |
1.3 |
189 |
| 1000 |
11.3 |
1640 |
3.4 |
478 |
1.6 |
232 |
0.5 |
72 |
| 10000 |
8.2 |
1190 |
2.2 |
320 |
0.7 |
100 |
0.2 |
30 |
Physical Properties
| Density g/cm3 |
7.1 |
|
|
|
|
|
|
| Electrical resistivity at 20°C Ω mm2/m |
1.45 |
|
|
|
|
|
|
| Poisson's ratio |
0.3 |
|
|
|
|
|
|
| YOUNG'S MODULUS |
| Temperature °C |
20 |
100 |
200 |
400 |
600 |
800 |
1000 |
| GPa |
220 |
210 |
205 |
190 |
170 |
150 |
130 |
Coefficient Of Thermal Expansion
| COEFFICIENT OF THERMAL EXPANSION |
| 20 - 250 |
11 |
| 20 - 500 |
12 |
| 20 - 750 |
14 |
| 20 - 1000 |
15 |
| 20-1200 |
16 |
| 20-1400 |
16 |
Thermal Conductivity
| THERMAL CONDUCTIVITY |
| Temperature °C |
50 |
600 |
800 |
1000 |
1200 |
1400 |
| W/(m K) |
11 |
20 |
22 |
26 |
27 |
35 |
Specific Heat Capacity
| SPECIFIC HEAT CAPACITY |
| Temperature °C |
20 |
200 |
400 |
600 |
800 |
1000 |
1200 |
1400 |
| kJ/(kg K) |
0.46 |
0.56 |
0.63 |
0.75 |
0.71 |
0.72 |
0.74 |
0.8 |
| Melting point °C |
1500 |
| Max continuous operating temperature in air °C |
1425 |
| Magnetic properties |
The material is magnetic up to approximately 600°C (Curie point) |
| Emissivity - fully oxidized material Ɛ |
0.7 |
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