Project Description

Nickel-Chromium Electrical Resistance Alloy

6J22，6J23，6J24

The improved Ni Cr series precision resistance alloy has high resistivity, low resistance temperature coefficient and small thermoelectric potential to copper, large strain sensitivity coefficient, small elastic modulus, small heat output and thermal lag, and good stability. Make various measuring instruments, meters and other resistance elements, medium and low temperature strain gauge elements.

6J22 (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, %

AlloyCPSMnSiCrNiAlFeCu
6J22≤0.04≤0.01≤0.010.5-1.5≤0.2019.0-21.5Bal2.7-3.22.0-3.0–
6J23≤0.04≤0.01≤0.010.5-1.5≤0.219.0-21.5Bal2.7-3.2––
6J24≤0.04≤0.01≤0.011.0-3.00.9-1.519.0-21.5Bal2.0-3.2≤0.50–

Physical Properties

NameGB NameResistivity(μΩ.m)Temp. Coefficient of Resistivity(℃)(0~100℃) ThermalEMF vs. CopperMax.workingTemp.(℃)Elongation(%)Tensile Strength(N/mm2)Standard
Karma6J221.33±0.07≤±20≤2.5≤300>7≥780JB/T 5328

Features

The improved Ni Cr series precision resistance alloy has high resistivity, low resistance temperature coefficient and small thermoelectric potential to copper, large strain sensitivity coefficient, small elastic modulus, small heat output and thermal lag, and good stability.

Applications

Make various measuring instruments, meters and other resistance elements, medium and low temperature strain gauge elements.