| Model Number: | Cr20Ni80/ni80cr20/nicr80/20 |
| Density: | 8.4/cm3 |
| Resistivity: | 1.09±0.05 |
| Tensile strength: | 630-780 |
| Melting point: | 1400 |
| NiCr series | Cr10Ni90 Cr20Ni80 Cr30Ni70 Cr15Ni60 Cr20Ni30 Cr20Ni35 |
Cr20Ni80 Cr15Ni60 Cr20Ni35 Cr20Ni30 Nickel chrome wire
NiCr resistance heating alloy Cr20Ni80 Cr15Ni60 Cr20Ni35 Cr20Ni30 Nickel chrome wire 0.5
Features of NiCr :
| Specifications | STANDARD: GB1234-2012 |
| Main chemical composition | Cr:20.0-23.0% ,Ni: Rest |
| Max. continues service temp. | 1200°C |
| Resistivity at 20 °C | 1.09±0.05 |
| Density (g/cm3) | 8.4 |
| Thermal conductivity(KJ/m.h.°C) | 60.3 |
| Coefficient of lines expansion (aX10-6/°C) | 18 |
| Melting point appox °C | 1400 |
| Elongation at rupture % | >20 |
| Micrographic structure | austenite |
| Magnetic properties | non magnetic |
| Performance\ material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
|
Composition | Ni | 90 | Rest | Rest | 55.0~61.0 | 34.0~37.0 | 30.0~34.0 |
| Cr | 10 | 20.0~23.0 | 28.0~31.0 | 15.0~18.0 | 18.0~21.0 | 18.0~21.0 | |
| Fe | ≤1.0 | ≤1.0 | Rest | Rest | Rest | ||
| Maximum temperature℃ | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Meltiing point ℃ | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 | |
| Density g/cm3 | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| Resistivity at 20℃((μΩ·m) | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 | ||
| Elongation at rupture | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | |
| Specific heat J/g.℃ | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 | ||
| Thermal conductivity KJ/m.h℃ | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | ||
| Coefficient of lines expansion a×10-6/ (20~1000℃) |
18 |
17 |
17 |
19 |
19 | ||
| Micrographic structure | Austenite | Austenite | Austenite | Austenite | Austenite | ||
| Magnetic properties | Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic | ||
