0Cr21Al6Nb alloy has the characteristic of high resistivity, low
temperature resistance coefficient, high operating temperature,
good anti-oxidation and anti-corrosion under high temperature.
0Cr21Al6Nb resistance wire is widely used in electronic devices due
to its high temperature stability, corrosion resistance, and
excellent resistance characteristics, making it an indispensable
key component in many electronic products.
0Cr21Al6Nb resistance wire, as a high-temperature resistance alloy,
is commonly used as heating elements in electronic devices such as
e-cigarettes, electric kettles, hair dryers, etc. It can heat up
quickly and maintain a stable temperature, providing the required
heat.
In some electronic devices, temperature control is required to
achieve specific functions or protect other components. 0Cr21Al6Nb
resistance wire is used as resistance heaters. By adjusting the
current, the temperature of the heater can be controlled, enabling
precise temperature control.
- Light Emitting Diode (LED) drivers
0Cr21Al6Nb resistance wire can also be used in current limiters or
protection circuits in LED drivers. By limiting the current, it can
protect LEDs from damage due to overcurrent, extending their
lifespan.
Since the resistance of 0Cr21Al6Nb resistance wire is directly
proportional to temperature, it can also be used as part of
temperature sensors. By measuring the change in resistance, the
temperature of the environment can be determined and used in
temperature monitoring and control systems.
- Ferrous Chromium Aluminum alloy performance tables
| Alloy Nomenclature Performance | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 |
| Main Chemical composition | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 |
| Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune |
| Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest |
| | | | | | Nb0.5 | Mo1.8-2.2 |
| Max. continuous service temp. of element(°C) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 |
| Resistivity at 20ºC(μΩ·m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 |
| Density(g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 |
| Thermal conductivity(KJ/m·h·ºC) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | |
| Coefficient of lines expansion(α×10-6/ºC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 |
| Melting point approx.( ºC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 |
| Tensile strength(N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 |
| Elongation at rupture(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 |
| Variation of area(%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 |
| Repeat Bending frequency(F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 |
| Hardness(H.B.) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 |
| Continuous Servicetime(Hours/ ºC) | -- | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 |
| Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite |
| Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
