China Excellent Resistance Stability Karm(Ni-Cr-Al-Fe) Alloys Wire for Strain Gauges Manufacture and Factory

Excellent Resistance Stability Karm(Ni-Cr-Al-Fe) Alloys Wire for Strain Gauges

Short Description:

The main components are nickel, chromium, aluminum and iron. The resistivity is about three times higher than that of manganese copper, and it has a lower temperature coefficient of resistance and low thermoelectric potential to copper, good long-term resistance stability and anti-oxidation performance. The operating temperature is wider than that of manganese copper. It is suitable for making precision micro resistor elements and strain gauges.

Brand: Tankii

Grade: 6J22

Size: 0.018mm~1.6mm

Usages: Strain Gauges

Density: 8.1

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Chemical Composition

Product name	Grade	Main Composition(%)				Density(g/mm²)
Product name	Grade	Cr	Al	Fe	Ni	8.1
Karm	6J22	19~21	2.5~3.2	2.0~3.0	bal	8.1

Product Performance

Resistivity(20°C)(uΩ/m)	1.33±0.07
TCR(20℃)(×10¯6/℃)	≤±20
(0~100℃)Themmal EMFvs. Copper(uv/℃)	≤2.5
Max Working Temp.(℃)	≤300
Elongation%	>7
Tensile Strength(N/mm2 )	≥780
Standard	JB/T 5328