Wayar NiCr20AlSi/KarmaWaya /6j22 don Resistor
An yi ƙarfen Karma da jan ƙarfe, nickel, Aluminum da Iron a matsayin manyan abubuwan haɗin. Resistance ɗin ya fi Manganin sau 2-3. Yana da ƙarancin juriyar zafin jiki (TCR), ƙarancin EMF na zafi idan aka kwatanta da jan ƙarfe, juriya mai kyau na dogon lokaci da kuma ƙarfin hana iskar oxygen. Yanayin zafin aiki nasa ya fi faɗi fiye da Manganin (-60~300ºC). Ya dace da yin abubuwa masu juriya masu kyau da kuma foil ɗin da aka yi da tauri.
Abubuwan Sinadarai (%)
| Matsayi | C | Si | Mn | P | S | Ni | Al | Fe | Cr |
| Karma | ≤0.04 | ≤0.20 | 0.5~1.05 | ≤0.010 | ≤0.010 | Bal. | 2.7~3.2 | 2.0~3.0 | 19.0~21.5 |
Sifofin Jiki
| Matsayi | Yawan yawa (g/cm3) | EMF vs. Pt(0-100ºC)μv/ºC | Max amfani Zafin jiki (ºC) | Ƙarar girma juriya (μΩ.m) | Darajar PPM (×10-6/ºC) |
| Karma | 8.1 | ≤2.5 | ≤300 | 1.33±8%(20ºC) | ≤±30(20ºC) |