Haɗaɗɗen ƙarfe na jan ƙarfe (CuNi) kayan aiki ne masu juriya matsakaici zuwa ƙarancin juriya waɗanda galibi ake amfani da su a aikace-aikace tare da matsakaicin zafin aiki har zuwa 400°C (750°F).
Tare da ƙarancin zafin jiki na juriyar lantarki, juriya, don haka aiki, yana da daidaito ba tare da la'akari da zafin jiki ba. Alloys ɗin nickel na jan ƙarfe suna da kyakkyawan juriya, ana iya haɗa su cikin sauƙi da walda, haka kuma suna da juriya mai kyau ta tsatsa. Waɗannan alloys galibi ana amfani da su a cikin aikace-aikacen wutar lantarki mai yawa waɗanda ke buƙatar babban matakin daidaito.
| Matsayi | CuNi44 | CuNi23 | CuNi10 | CuNi6 | CuNi2 | CuNi1 | CuNi8 | CuNi14 | CuNi19 | CuNi30 | CuNi34 | CuMn3 | |
| Cuprothal | 49 | 30 | 15 | 10 | 5 | ||||||||
| Isabellehutte | ISOTAN | Gami 180 | Gami 90 | Gami 60 | Alloy 30 | ISA 13 | |||||||
| Tsarin da ba na yau da kullun ba% | Ni | 44 | 23 | 10 | 6 | 2 | 1 | 8 | 14 | 19 | 30 | 34 | – |
| Cu | Bal | Bal | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal | Bal | Bal | Bal | |
| Mn | 1 | 0.5 | 0.3 | – | – | – | – | 0.5 | 0.5 | 1.0 | 1.0 | 3.0 | |
| Matsakaicin zafin aiki (uΩ/m a 20°C) | 0.49 | 0.3 | 0.15 | 0.10 | 0.05 | 0.03 | 0.12 | 0.20 | 0.25 | 0.35 | 0.4 | 0.12 | |
| Juriya (Ω/cmf a 68°F) | 295 | 180 | 90 | 60 | 30 | 15 | 72 | 120 | 150 | 210 | 240 | 72 | |
| Matsakaicin zafin aiki (°C) | 400 | 300 | 250 | 200 | 200 | 200 | 250 | 300 | 300 | 350 | 350 | 200 | |
| Yawan yawa (g/cm³) | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | |
| TCR(×10-6/°C) | <-6 | <16 | <50 | <60 | <120 | <100 | <57 | <30 | <25 | <10 | <0 | <38 | |
| Ƙarfin Taurin Kai (Mpa) | ≥420 | ≥350 | ≥290 | ≥250 | ≥220 | ≥210 | ≥270 | ≥310 | ≥340 | ≥400 | ≥400 | ≥290 | |
| Tsawaita (%) | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | |
| EMF vs Cu uV/°C(0~100°C) | -43 | -34 | -25 | -12 | -12 | -8 | 22 | -28 | -32 | -37 | -39 | - | |
| Wurin Narkewa (°C) | 1280 | 1150 | 1100 | 1095 | 1090 | 1085 | 1097 | 1115 | 1135 | 1170 | 1180 | 1050 | |
| Kadarar Magnetic | ba | ba | ba | ba | ba | ba | ba | ba | ba | ba | ba | ba | |
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