Product Overview
6J11 (Constantan) is a copper-nickel-manganese (Cu-Ni-Mn) precision resistance alloy characterized by low temperature coefficient of resistance, high resistivity, excellent thermoelectric properties, and stable mechanical characteristics. It is widely used in precision resistors, thermocouples, sensors, and electronic components.
Key Features
Stable Resistivity: Resistivity (0.48~0.52 μΩ·m) remains highly stable with minimal temperature influence (TCR ±20 ppm/°C), making it ideal for precision measurements.
Superior Thermoelectric Performance: Commonly used in Type E (Nickel-Chromium/Constantan) and Type T (Copper/Constantan) thermocouples, with a broad temperature range (-200°C to +400°C).
Excellent Machinability: High ductility allows drawing into micron-level fine wires (below 0.01mm) or rolling into foil strips, suitable for precision electronic components.
Corrosion Resistance: Good oxidation resistance at room temperature, suitable for general industrial environments.
Typical Applications
Precision Resistors: Shunt resistors, standard resistors, high-accuracy measurement circuits
Temperature Sensing: Thermocouples (Type E, Type T), temperature sensors
Strain Measurement: Strain gauges, force sensors
Electronics Industry: Thin-film resistors, micro-fine wires, flexible circuits
With stable electrical properties, excellent process adaptability, and reliable thermoelectric performance, 6J11 Constantan serves as a critical functional material in instrumentation, aerospace, and electronic equipment industries.
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