Kutherm 3 & Kutherm 10 are particularly useful in low-temperature heating applications such as underfloor heating and blanket wires.
Kutherm alloys are copper-based resistance wires with enhanced corrosion and temperature coefficient properties. Kutherm Alloys are available in sizes down to 0.06 mm either bright annealed or hard drawn.
contact us about KUTHERM ALLOYS wire
physical & mechanical properties
| Units | ||||
|---|---|---|---|---|
| Maximum continuous operating temperature in air |
°C °F |
1280 | 1280 | |
| Nominal composition | % |
Cu 99 Sn 1 |
Cu 95 Sn 5 |
|
| Density at 20°C |
g/cm³ lb/in³ |
8.9 0.32 |
8.85 0.32 |
|
| Resistivity at 20°C |
µΩcm Ω/cmf |
3 18 |
10.2 61.2 |
|
| Temperature Coefficient of Resistance |
20 –100°C 68 –212°F |
1/°C 1/°F |
0.0022 0.0012 |
0.00079 0.00044 |
| Coefficient of thermal expansion, |
20 –100°C 68 –212°F |
1/K 1/°F |
18 x 10-6 10 x 10-6 |
18 x 10-6 10 x 10-6 |
| Thermal conductivity at |
20°C 68°F |
W/mK Btu.in/ft².h.°F |
215 1518 |
75 530 |
| Specific heat capacity at |
20°C 68°F |
kJ/kgK Btu/lb°F |
0.38 0.11 |
0.38 0.11 |
| Melting point (approx.) |
°C °F |
1050 1900 |
1000 1800 |
|
| Magnetic properties (up to Curie point) | - | Non Magnetic | Non Magnetic | |
| Tensile strength Rm (0.5 mm wire) |
N/mm² lb/in² |
300 43000 |
400 58000 |
|
| Elongation at break (approx.) (0.5 mm wire) | % | 30 | 30 | |
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.