Copper nickel alloy constantan waya, wanda ke da ƙarancin juriyar wutar lantarki, mai kyau mai jure zafi da juriya, mai sauƙin sarrafawa da waldar gubar.Ana amfani da shi don yin mahimman abubuwan da ke cikin na'ura mai ɗaukar nauyi na thermal, ƙarancin juriya mai juriya, da na'urorin lantarki.Hakanan abu ne mai mahimmanci don kebul ɗin dumama wutar lantarki.Yana kama da nau'in' cupronickel.
Kaddarorin jiki na constantan sune:
Matsayin narkewa - 1225 zuwa 1300 oC
Takamaiman nauyi - 8.9 g/cc
Solubilitya cikin Ruwa - Insoluble
Bayyanar - Azurfa-fari malleable gami
Juriya na lantarki a zafin jiki: 0.49 µΩ/m
Na 20°c- 490µΩ/cm
Yawan yawa - 8.89 g/cm3
Matsakaicin zafin jiki ± 40 ppm/K-1
Ƙayyadadden ƙarfin zafi 0.39 J/(g·K)
Ƙarfafa Ƙarfafawa 19.5 W/(mK)
Elastic Modulus 162 GPa
Tsawaitawa a karaya - <45%
Ƙarfin ƙarfi - 455 zuwa 860 MPa
Daidaiton Layi na Ƙarfin Ƙarfafawar thermal 14.9 × 10-6 K-1