Description of Iron-Chromium-Aluminium Heating Wire
This Iron-Chromium-Aluminium Heating Wire offers a higher surface load capacity, a higher specific resistivity and a lower density compared to Nickel-Chrom (NiCr) alternatives, thereby reducing the required material and resulting in weight savings. It incorporates an effective anti‐oxidant measure against sulphur carburisation and features low weight, high surface load capacity, an extended service life and low acquisition cost. It is utilised in industrial furnaces, metallurgical processes, mechanical engineering, domestic applications and other sectors for the manufacture of heating elements and resistance components.
Specifications of Iron-Chromium-Aluminium Heating Wire
Material/Performance |
1Cr13AL4 |
0Cr21AL4 |
0Cr21AL6 |
0Cr23AL5 |
0Cr25AL5 |
Cr |
12.0–15.0 |
18.0–21.0 |
19.0–22.0 |
20.0–23.5 |
23.0–26.0 |
23.0–26.0 |
Al |
Fe |
Re |
|
|
4.0~6.0 |
Balance |
Balance |
Balance |
Balance |
Balance |
|
Balance |
Balance |
Balance |
Balance |
Balance |
Balance |
|
Balance |
Balance |
Balance |
Balance |
Balance |
Balance |
|
|
|
|
|
|
|
Maximum Temperature (℃) |
950 |
1100 |
1250 |
1250 |
1250 |
Melting Point (℃) |
1450 |
1500 |
1500 |
1500 |
1500 |
g/cm³ |
7.4 |
7.35 |
7.16 |
7.25 |
7.1 |
Resistivity (µΩ-m, 20℃) |
1.25±0.08 |
1.23±0.06 |
1.42±0.07 |
1.35±0.06 |
1.42±0.07 |
μΩ-m, 20℃ |
Tensile Strength |
580~680 |
600~700 |
630~780 |
630~780 |
637~784 |
MPa |
Elongation at Break (%) |
>16 |
>12 |
>12 |
>12 |
>12 |
Repeated Bending Frequency |
>5 |
>5 |
>5 |
>5 |
>5 |
Rapid Ageing (h/℃) |
-- |
>80/1250 |
>80/1300 |
>80/1300 |
>80/1300 |
Specific Heat |
0.49 |
0.49 |
0.52 |
0.46 |
0.494 |
J/g℃ |
Thermal Conductivity |
52.7 |
46.9 |
63.2 |
60.2 |
46.1 |
KJ/m.h℃ |
Coefficient of Linear Expansion |
15.4 |
13.5 |
14.7 |
15 |
16 |
a×10-6/℃ (20~1000℃) |
Hardness (HB) |
200~260 |
200~260 |
200~260 |
200~260 |
200~260 |
Microstructure |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Magnetic Properties |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Applications of Iron-Chromium-Aluminium Heating Wire
Used as industrially manufactured heating elements and resistance components in:
- Industrial Furnaces
- Metallurgical Applications
- Mechanical Engineering Applications