Scott Precision Wire concentric stranded resistance wires are specially manufactured to provide consistent resistance and heating characteristics.
Cromaloy 5 is able to withstand progressive oxidation due to its resistance to oxide scaling and superior thermal fatigue properties.
Resistance 0.276 – 0.306 Ω/m
Construction
| Centre | 1 x 0.574mm |
| Layer 1 | 6 x 0.523mm Right Hand Lay |
| Layer 2 | 12 x 0.523mm Left Hand Lay |
Physical and Mechanical Properties
| | Units | |
|---|---|---|
| Maximum continuous operating temperature in air | °C | 1250 |
| Nominal composition | % | Ni 80 |
| Cr 20 | ||
| Density at 20°C | g/cm³ | 8.3 |
| Resistivity at 20°C | µΩcm | 109 |
| Thermal conductivity at 20°C | W/mK | 14.6 |
| Specific heat capacity at 20°C | kJ/kgK | 0.42 |
| Melting point (approx.) | °C | 1400 |
Temperature Dependant Factors
Reference temperature 20°C
| Temp °C | 200 | 400 | 600 | 800 | 1000 | 1200 |
| Temp °F | 392 | 752 | 1112 | 1472 | 1832 | 2192 |
| Resistivity Factor | 1.015 | 1.034 | 1.034 | 1.029 | 1.039 | 1.058 |
| Coeff. of thermal expansion (10^6/K) | 14 | 15 | 15.5 | 16 | 17 | |
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.