Cupronic 12 is a specially developed alloy of Copper and Nickel which, when used with Pure Copper, forms a thermocouple compensating material with thermal e.m.f characteristics similar to Platinum Rhodium 10% (S) and 13% (R).
E.m.f.
International and other national specifications are available on request.Material is normally produced to provide an e.m.f. to BS EN 60584-1, Type R or S with tolerances to BS EN 60584-3.
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Physical and Mechanical Properties
| | Units | |
|---|---|---|
| Nominal composition | % | Cu 95 |
| 3Ni | ||
| Mn 2 | ||
| Density at 20°C | g/cm³ | 8.9 |
| Resistivity at 20°C | µΩcm | 12 |
| Temperature Coefficient of Resistance, 20 – 100°C | 1/K | 0.003 |
| Coefficient of thermal expansion, 20 – 100°C | 1/K | 18 x 10^6 |
| Melting point (approx.) | °C | 1080 |
The figures given in these tables represent nominal or typical values.
Information contained within this technical data sheet is based upon the general experience of Scott Precision Wire Ltd and is believed to be correct at the time of issue.
No warranty is given or is to be implied from the details above.
Customers are advised to carry out independent tests in order to determine the suitability of any Scott Precision Wire Ltd product for an application.