Hangzhou Ualloy Material Co.,Ltd is one of the best karma alloy manufacturers and suppliers in China,Website:://.alloystrip.com, welcome to buy discount and low price karma wire, 6j22 wire from us, and also welcome to check the price and quotation with our factory. Karma alloy Karma alloy is made up of copper, nickel, Aluminum and Iron as the main components. The resistivity is 2~3 times higher than Manganin. It has lower temperature coefficient of resistance(TCR), lower thermal EMF versus copper, good permanence of resistance for a long period of time and strong anti-oxidation. Its working temperature range is wider than Manganin (-60~300℃). It is suitable for making fine precision resistance elements and strain foil. Chemical Content(%) Grade 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 Physical Properties Grade Density(g/cm3) EMF vs      Pt(0-100℃)μv/℃ Max using      Temp (℃) Volume      resistivity(μΩ.m) PPM value      (×10-6/℃) Karma 8.1 ≤2.5 ≤300 1.33±8%(20℃) ≤±30(20℃)