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:
Resisivity 20℃:
Density:
Thermal Conductivity:
Coefficient of Thermal Expansion:
Melting Point:
Elongation:
Micrographic Structure:
Magnetic Property: | 1300℃
1.42+/-0.07ohm mm2/m
7.25g/cm3
46.1 KJ/m·h·℃
15.0×10-6/℃ (20℃~1000℃)
1500℃
Min 12%
Ferrite
magnetic |
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 |
