Categories
Karma is an alloy of nickel, chromium, aluminum, iron. It has characteristics of a higher resistivity than nickel chromium, low temperature coefficient of resistance, good wear resistance, heat resistance and better corrosion resistance. It is suitable for making slide resistance, standard resistor, miniature instruments, precision instruments with resistive element and the high resistance elements, etc.
Alloy | Co | Main components | Resistivity | Temp. Coff. | Elongation (﹪) | Tensile strength (N/mm2) | Density (g/cm3) | Melting point(℃) | Working temp.(℃) | |||
Ni | Cr | Al | Fe | |||||||||
Karma | 6J22 | Remmainder | 19~ | 2.5~3.2 | 2~3 | 1.33±0.07 |
| 3~35 | ≥690 | 8.10 | 1350 | -60~300 |