CuNi2Ana amfani da ƙarfe mai ƙarfi na dumama mai ƙarfi sosai a cikin na'urar busar da wutar lantarki mai ƙarancin ƙarfin lantarki, na'urar ɗaukar zafi mai yawa, da sauran kayan lantarki masu ƙarancin ƙarfin lantarki. Yana ɗaya daga cikin mahimman kayan samfuran lantarki masu ƙarancin ƙarfin lantarki. Kayan da kamfaninmu ya samar suna da halaye na daidaiton juriya mai kyau da kwanciyar hankali mai kyau. Za mu iya samar da duk nau'ikan kayan waya masu zagaye, lebur da takarda.
Ba a haɗa shi da ƙarfe ba. Ana amfani da shi don resistor mai canzawa na lantarki da resistor mai ƙarfi,
Ana amfani da na'urori masu auna ƙarfin lantarki (potentiometers), wayoyi masu dumama, kebul na dumama da tabarmi. Ana amfani da ribbons don dumama bimetals. Wani fanni na amfani da su shine kera thermocouples saboda yana haɓaka ƙarfin lantarki mai ƙarfi (EMF) tare da sauran ƙarfe.
Jerin ƙarfe na nickel: Constantan CuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi44.
Girman girman kewayon:
Waya: 0.1-10mm
Ribbons: 0.05*0.2-2.0*6.0mm
Zaren: 0.05*5.0-5.0*250mm
Babban maki da kaddarorin
| Nau'i | juriyar lantarki (20 digiriΩ) mm²/m) | ma'aunin juriya na zafin jiki (10^6/digiri) | Dazuzzuka ity g/mm² | Matsakaicin zafin jiki (°c) | Wurin narkewa (°c) |
| CuNi1 | 0.03 | <1000 | 8.9 | / | 1085 |
| CuNi2 | 0.05 | <1200 | 8.9 | 200 | 1090 |
| CuNi6 | 0.10 | <600 | 8.9 | 220 | 1095 |
| CuNi8 | 0.12 | <570 | 8.9 | 250 | 1097 |
| CuNi10 | 0.15 | <500 | 8.9 | 250 | 1100 |
| CuNi14 | 0.20 | <380 | 8.9 | 300 | 1115 |
| CuNi19 | 0.25 | <250 | 8.9 | 300 | 1135 |
| CuNi23 | 0.30 | <160 | 8.9 | 300 | 1150 |
| CuNi30 | 0.35 | <100 | 8.9 | 350 | 1170 |
| CuNi34 | 0.40 | -0 | 8.9 | 350 | 1180 |
| CuNi40 | 0.48 | ±40 | 8.9 | 400 | 1280 |
| CuNi44 | 0.49 | <-6 | 8.9 | 400 | 1280 |
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