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.
| Constantan 6J40 | Sabon Constantan | Manganin | Manganin | Manganin | ||
| 6J11 | 6J12 | 6J8 | 6J13 | |||
| Babban Sinadaran % | Mn | 1~2 | 10.5~12.5 | 11~13 | 8~10 | 11~13 |
| Ni | 39~41 | - | 2~3 | - | 2~5 | |
| Cu | HUTU | HUTU | HUTU | HUTU | HUTU | |
| Al2.5~4.5 Fe1.0~1.6 | Si1~2 | |||||
| Yanayin Zafin Jiki don Abubuwan da Aka Haɗa | 5~500 | 5~500 | 5~45 | 10~80 | 10~80 | |
| Yawan yawa | 8.88 | 8 | 8.44 | 8.7 | 8.4 | |
| g/cm3 | ||||||
| Juriya | 0.48 | 0.49 | 0.47 | 0.35 | 0.44 | |
| μΩ.m,20 | ±0.03 | ±0.03 | ±0.03 | ±0.05 | ±0.04 | |
| Fadadawa | ≥15 | ≥15 | ≥15 | ≥15 | ≥15 | |
| %Φ0.5 | ||||||
| Juriya | -40~+40 | -80~+80 | -3~+20 | -5~+10 | 0~+40 | |
| Zafin jiki | ||||||
| Rangwame | ||||||
| α,10 -6 / | ||||||
| Thermoelectromotive | 45 | 2 | 1 | 2 | 2 | |
| ƙarfi zuwa ga Copper | ||||||
| μv/(0~100) | ||||||
150 0000 2421