Kanthal® AM100 is an advanced heat resistant ferritic iron-chromium-aluminium alloy (FeCrAl alloy) specially developed for additive manufacturing. This allows Kanthal to offer printed products with customized geometries that can be difficult to produce by traditional methods. Examples of products printed with Kanthal® AM100 are heating elements, burner nozzles, and protective shells, fittings and manifolds, etc.
The printed Kanthal® AM100 material has high strength and very good form stability at high temperatures. The material forms a highly protective aluminium oxide layer, which gives excellent protection in most demanding high temperature furnace environments, e.g. oxidizing, sulphidizing, and carburizing.
Chemical composition
| |
C % |
Si % |
Mn % |
Cr % |
Al % |
Fe % |
| Nominal composition |
|
|
|
|
|
Bal. |
| Min |
- |
- |
- |
19.0 |
4.5 |
|
| Max |
0.08 |
0.7 |
0.4 |
23.5 |
5.5 |
|
Mechanical properties
| Yield strength |
Tensile strength |
Elongation |
Hardness |
| Rp0.2 |
Rm |
A20 |
Hv |
| MPa (ksi) |
MPa (ksi) |
% |
|
| 560-610 |
660-710 |
22-28 |
250 |
| (81-89) |
(96-103) |
|
|
HIGH TEMPERATURE CREEP PROPERTIES
Creep strength - 1% elongation
| Temperature °C (°F) |
1100 (2012) |
| Time h |
Stress MPa (psi) |
| 100 |
8.9 (1290) |
| 1000 |
4.6 (670) |
| 10000 |
2.4 (350) |
| 100000 |
1.2 (170) |
Physical properties
Generic data from wrought material.
| Density |
g/cm3 |
7.15 |
| |
lb/in3 |
0.258 |
| Electrical resistivity at 20°C (68°F) |
Ω mm2/m |
1.39 |
| |
Ω circ. mil/ft |
836 |
Temperature factor of resistivity
| Temp. °C |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
1000 |
1100 |
1200 |
1300 |
| Temp. °F |
212 |
392 |
572 |
752 |
932 |
1112 |
1292 |
1472 |
1652 |
1832 |
2012 |
2192 |
2372 |
| Ct |
1.00 |
1.01 |
1.01 |
1.02 |
1.03 |
1.04 |
1.04 |
1.05 |
1.05 |
1.06 |
1.06 |
1.06 |
1.06 |
Coefficient of thermal expansion
| Temperature °C (°F) |
Thermal Expansion x 10-6/K (10-6 /°F) |
| 20 - 250 (68-482) |
11 (6.1) |
| 20 - 500 (68-932) |
12 (6.7) |
| 20 - 750 (68-1382) |
14 (7.8) |
| 20 - 1000 (68-1832) |
15 (8.3) |
Thermal conductivity
| Temperature °C |
20 |
600 |
800 |
1000 |
1200 |
| Temperature °F |
68 |
1112 |
1472 |
1832 |
2192 |
| W m-1 K-1 |
11 |
20 |
22 |
26 |
27 |
| Btu h-1ft-1°F-1 |
6.4 |
11.6 |
12.7 |
15.0 |
15.6 |
Specific heat capacity
| Temperature °C |
20 |
200 |
400 |
600 |
800 |
1000 |
1200 |
| Temperature °F |
68 |
392 |
752 |
1112 |
1472 |
1832 |
2192 |
| kJ kg-1 K-1 |
0.46 |
0.56 |
0.63 |
0.75 |
0.71 |
0.72 |
0.74 |
| Btu lb-1 °F-1 |
0.11 |
0.13 |
0.15 |
0.18 |
0.17 |
0.17 |
0.18 |
| Melting point °C (°F) |
1500 (2732) |
| Max continuous operating temperature in air °C (°F) |
1300 (2372) |
| Magnetic properties |
The material is magnetic up to approximately 600°C (1112°F) (Curie point). |
| Emissivity - fully oxidized material |
0.70 |
