19x0.523mm Cromaloy 5

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


Centre1 x 0.574mm
Layer 16 x 0.523mm Right Hand Lay
Layer 212 x 0.523mm Left Hand Lay

Physical and Mechanical Properties

Maximum continuous operating temperature in air°C1250
Nominal composition%Ni 80
Cr 20
Density at 20°Cg/cm³8.3
Resistivity at 20°CµΩcm109
Thermal conductivity at 20°CW/mK14.6
Specific heat capacity at 20°CkJ/kgK0.42
Melting point (approx.)°C1400

Temperature Dependant Factors

Reference temperature 20°C

Temp °C20040060080010001200
Temp °F3927521112147218322192
Resistivity Factor1.0151.0341.0341.0291.0391.058
Coeff. of thermal expansion (10^6/K)141515.51617

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.