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Karma Ni-Cr-Al-Fe alloy wire

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Product description
Parameters

With nickel, chromium, aluminum, iron as the main ingredients. Resistivity than manganin higher about three times, and a low temperature coefficient of resistance and low to the copper heat potential, good resistance to long-term stability and antioxidant properties. The use of a wide temperature manganin. Suitable for making precision micro resistance element and strain gauge.

Chemical composition

Name Code Main Composition% Standard
Cr Al Fe Ni
Karma 6J22 19~21 2.5~3.2 2.0~3.0 bal. JB/T 5328

Note: Diamete Sizes: 0.02-1.00mm

Properties

Name Code Resistivity(μΩ.m) Temp.Coeffi. Of Resistance(℃) (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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