High Resistivity Nichrome Resistance Wire 0.02 - 8mm NICKEL - CHROMIUM 80 NiCr Alloy, for heating core/raidum tube/light
NICKEL-CHROMIUM 80 (NiCr) wire alloys for use at temperatures up to1200°C
NICKEL-CHROMIUM 80 is an austenitic nickel-chromium alloy (NiCr alloy) for use at temperatures up to 1200°C (2190°F). The alloy is characterized by high resistivity, good oxidation resistance and very good form stability. It has good ductility after use and excellent weldability.
NICKEL-CHROMIUM is used for electric heating elements in home appliances and industrial furnaces. Typical applications are flat irons, ironing machines, water heaters, plastic moulding dies, soldering irons, metal sheathed tubular elements and cartridge elements.
Due to extremely good adhesion properties of the surface oxide, NICKEL-CHROMIUM 80 offers superior service life compared to competitive nickel-chromium alloys.
Ni-Cr80 for Mica Heating Core
Ni-Cr80 for radium tube
Chemical composition
| C % | Si % | Mn % | Cr % | Ni % | Fe % | Trace elements | |
|---|---|---|---|---|---|---|---|
| Nominal composition | Bal. | Added | |||||
| Min | - | 1.0 | - | 19.0 | - | - | - |
| Max | 0.10 | 1.7 | 1.0 | 21.0 | - | 2.0* | - |
* Fe< 1.0 on request
Mechanical properties
| Wire size | Yield strength | Tensile strength | Elongation | Hardness |
|---|---|---|---|---|
| Ø | Rp0.2 | Rm | A | |
| mm | MPa | MPa | % | Hv |
| 1.0 | 420 | 810 | 30 | 180 |
| 4.0 | 300 | 725 | 30 | 160 |
| Temperature °C | 900 |
|---|---|
| MPa | 100 |
Ultimate tensile strength - deformation rate 6.2 x 10-2/min
| Temperature °C | 800 | 1000 |
|---|---|---|
| MPa | 15 | 4 |
Physical properties
| Density g/cm3 | 8.30 |
|---|---|
| Electrical resistivity at 20°C Ω mm2/m | 1.09 |
| Temperature°C | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ct | 1.01 | 1.02 | 1.03 | 1.04 | 1.04 | 1.04 | 1.04 | 1.04 | 1.04 | 1.05 | 1.06 | 1.07 |
| Temperature °C | Thermal Expansion x 10-6/K |
|---|---|
| 20 - 250 | 14.1 |
| 20 - 500 | 14.9 |
| 20 - 750 | 16.0 |
| 20 - 1000 | 17.2 |
| Temperature °C | 20 | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W m-1 K-1 | 15 | 15 | 15 | 15 | 17 | 19 | 21 | 22 | 24 | 26 | 28 | 30 |
| Temperature °C | 20 | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| kJ kg-1 K-1 | 0.46 | 0.46 | 0.48 | 0.50 | 0.52 | 0.54 | 0.56 | 0.60 | 0.63 | 0.65 | 0.67 | 0.70 |
| Melting point °C | 1400 |
|---|---|
| Max continuous operating temperature in air °C | 1200 |
| Magnetic properties | The material is non-magnetic |
| Emissivity - fully oxidized material |
0.88,
|
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