0Cr25Al5 Cr21al6nb Hot Rolled Fecral Alloy Heating Rod Fecral Resistance Alloy
High Heat Wire 0Cr25Al5 Electrical Heating Elements in Metallurgical , Chemical
0Cr25Al5,
1 Introduction for FeCrAl alloy heating wire 0Cr25Al5
Fe-Cr-Al alloy heating wire is mainly composed of ferrum,chromium,aluminium. It is widely used in various in many industries, such as metallurgical, chemical, glass, ceramic, and electrics for instance.
2 Features
| Features of FeCrAl alloy heating wire 0Cr25Al5 | |
| 1 | An excellent resistance to oxidation under heat |
| 2 | A limitation of intergranular oxidation |
| 3 | High electric resistance and long lifetime |
| 4 | Good performance of anti-carburizing, the atmosphere and surface of sulfur pollution |
3 Application
| Applications of FeCrAl heating alloy wire 0Cr25Al5 | |
| 1 | industrial and civil heating-furnace |
| 2 | infrared equipment |
| 3 | liquefied gas infrared heat-resisting net |
| 4 | different kinds of igniting and radiating electrodes and voltage-regulating resistors for motors |
4 Size
|
Size |
|
|
Wires |
0.018-10mm |
|
Ribbons |
0.05*0.2-2.0*6.0mm |
|
Strips |
0.5*5.0-5.0*250mm |
|
Bars |
D10-100mm |
0Cr25Al5
Chemical Content, %
|
C |
P |
S |
Mn |
Si |
Cr |
Ni |
Al |
Fe |
Other |
|
|
Max |
||||||||||
|
0.06 |
0.025 |
0.020 |
0.50 |
≤0.6 |
23.0-26.0 |
≤0.60 |
4.5-6.5 |
Balance |
- |
|
Mechanical Properties
|
Max Continuous Service Temperature: |
1300℃ |
Temperature Factor of Electrical Resistivity
|
20℃ |
100℃ |
200℃ |
300℃ |
400℃ |
500℃ |
600℃ |
|
1.000 |
1.002 |
1.005 |
1.008 |
1.013 |
1.021 |
1.030 |
|
|
||||||
|
700℃ |
800℃ |
900℃ |
1000℃ |
1100℃ |
1200℃ |
1300℃ |
|
1.038 |
1.040 |
1.042 |
1.044 |
1.046 |
1.047 |
1.047 |
0Cr21Al6Nb
Chemical Content(%)
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other | ||
| Max | |||||||||||
| 0.05 | 0.025 | 0.025 | 0.70 | Max 0.6 | 21.0~23.0 | Max 0.60 | 5.0~7.0 | Bal. | Nb 0.5 | ||
Mechanical Properties
| Max Continuous Service Temp | 1350ºC |
| Resisivity at 20ºC | 1.45 ohm mm2/m |
| Density | 7.1 g/cm3 |
| Thermal Conductivity | 46.1 KJ/m·h·ºC |
| Coefficient of Thermal Expansion | 16.0×10-6/ºC |
| Melting Point | 1510ºC |
| Tensile Strength | 637~784 Mpa |
| Elongation | Min 12% |
| Section Variation Shrink Rate | 65~75% |
| Repeatedly Bend Frequency | Min 5 times |
| Continuous Service Time | - |
| Hardness | 200-260HB |
| Micrographic Structure | Ferrite |
| Magnetic Property | Magnetic |
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