NiCr20AlSi 6J22 6J23 Evanohm Karma Wire For Making Fine Precision Resistance Elements
NiCr20AlSi 6J22 6J23 Evanohm Karma wire for making fine precision resistance elements
OHMALLOY 133 (NiCr20AlSi, Alloy800, 6J22, Karma, 6J23,Evanohm) is mainly made of nickel, chromium, aluminum and iron. It has a wider working temperature range from -60°C~300°C.The resistivity is 2~3 times higher than manganin. It has lower temperature coefficient of resistance(TCR), lower thermal EMF versus copper, good permanence of resistance for a long period of time and strong anti-oxidation. Its working temperature range is wider than manganin(-60~300℃). It is suitable for making fine precision resistance elements and strain.
Normal composition%
| Nickel | Bal | Chromium | 19-21 |
| Aluminum | 2.5-3.2 | Iron | 2.0-3.0 |
Typical Physical properties
| Density (g/cm3) | 8.3 |
| Electrical resistivity at 20℃ (Ωmm2/m) | 1.33±0.07 |
| Temperature factor of resistivity(20℃~600℃)X10-5/℃ | ≤±20 |
| Max Working Temp (℃ ) | 300 |
| EMF vs Cu(μV/℃ )(0~100℃ ) | ≤2.5 |
Style of supply
| Alloys Name | Type | Dimension |
| OHMALLOY 133 | Wire | D=0.01mm~1.5mm |
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