Cromaloy 1 is austenitic in character providing good resistance to corrosion up to 1100°C whilst retaining the benefit of ductility when compared with the ferritic Iron/Chrome/Aluminium resistance alloys.
The use of iron in the alloy reduces the density and produces an economical product for use in medium temperature applications. Cromaloy 1 is available in sizes down to 0.08 mm.
Physical and Mechanical Properties
| | Units | |
|---|---|---|
| Maximum continuous operating temperature in air | °C | 1150 |
| Nominal composition | % | Ni 60 |
| Cr 16 | ||
| Fe Bal | ||
| Density at 20°C | g/cm³ | 8.2 |
| Resistivity at 20°C | µΩcm | 111 |
| Thermal conductivity at 20°C | W/mK | 13.4 |
| Specific heat capacity at 20°C | kJ/kgK | 0.46 |
| Melting point (approx.) | °C | 1390 |
| Tensile strength Rm, 0.5 mm wire – annealed | N/mm² | 610 |
| Elongation at break, 0.5 mm wire - annealed | % | > 25 |
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 | 1.027 | 1.062 | 1.07 | 1.08 | 1.089 | 1.115 |
| Coeff. of thermal expansion (10^6 /K) | 14 | 16.5 | 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.