Project Description
6J22 (Karma Alloy)
Kama (Ni Cr al): nickel, chromium, aluminum, iron as the main ingredient. The resistivity is about three times higher than that of Mn Cu, and has low resistance temperature coefficient and low copper thermal potential, good resistance to long-term stability and oxidation resistance. The temperature is more wide than the manganese copper. It is suitable for making precision micro resistor element and strain gauge.
Chemical composition, %
| Name | GB Name | Main Composition,% | Standard | |||
|---|---|---|---|---|---|---|
| Cr | Al | Fe | Ni | |||
| Karma | 6J22 | 19-21 | 2.5-3.2 | 2.0-3.0 | Bal | JB/T 5328 |
Physical Properties
| Name | GB Name | Resistivity(μΩ.m) | Temp. Coefficient of Resistivity(℃) | (0~100℃) Thermal EMF vs. Copper | Max.working Temp.(℃) | Elongation(%) | Tensile Strength(N/mm2) | Standard |
|---|---|---|---|---|---|---|---|---|
| Karma | 6J22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | JB/T 5328 |
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