Cr20Ni80 Nichrome alloy resistance wire
Product Description
| Nichrome Alloy Heating Wire |
| Properties/Grade |
Cr20Ni80 |
Cr30Ni70 |
Cr15Ni60 |
Cr20Ni35 |
Cr20Ni30 |
| Main chemical composition % |
Cr |
20.0-23.0 |
28.1-31.0 |
15.0-18.0 |
18.0-21.0 |
30.0-34.0 |
| Ni |
Rest |
Rest |
55.0-61.0 |
34.0-37.0 |
18.0-21.0 |
| Fe |
≤1.0 |
≤1.0 |
Rest |
Rest |
Rest |
| Man Working Temp °C |
1200 |
1250 |
1150 |
1100 |
1100 |
| Melting Point °C |
1400 |
1380 |
1390 |
1390 |
1390 |
| Density g/cm3 |
8.4 |
8.1 |
8.2 |
7.9 |
7.9 |
| Resisivity(20°C)μΩ·m |
1.09±0.05 |
1.18±0.05 |
1.12±0.05 |
1.04±0.05 |
1.04±0.05 |
| Specific Heat(20°C) J/g.°C |
0.44 |
0.461 |
0.494 |
0.5 |
0.5 |
| Heat Conductivity KJ/m·h·°C |
60.3 |
45.2 |
45.2 |
43.8 |
43.8 |
| Cofficient of Thermal Expansion a×10-6/°C |
18 |
17 |
17 |
19 |
19 |
| Tensile Strength Mpa |
>85 |
>85 |
>85 |
>85 |
>85 |
| Elongation % |
≥20 |
≥20 |
≥20 |
≥20 |
≥20 |
| Repeatedly Bend Frequency F/R |
>12 |
>12 |
>12 |
>12 |
>12 |
| Microghpic Structure |
austenite |
| Magnetic Property |
Nonmagnetic |
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