Wayar Juriya ta Cuprothal 294/CuNi40
Wayar Constantan mai matsakaicin juriya da ƙarancin juriya mai zafi tare da lanƙwasa mai faɗi/zazzabi akan kewayon da ya fi faɗi fiye da "manganins". Constantan kuma yana nuna juriya mafi kyau ga tsatsa fiye da man ganinins. Amfani da shi galibi yana iyakance ga da'irori na AC.
Wayar Constantan kuma ita ce sinadari mara kyau na nau'in J thermocouple tare da Iron shine positive; ana amfani da nau'in J thermocouple a aikace-aikacen maganin zafi. Haka kuma, sinadari mara kyau ne na nau'in T thermocouple tare da OFHC Copper mai kyau; ana amfani da nau'in T thermocouple a yanayin zafi mai zafi.
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 nickel: ConstantanCuNi40 (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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