Thermophysical properties reference data for some key engineering alloys
Jamie Clark, Ronald Tye
A summary is given of the results of various NPL measurements carried out over a number of years on specimens of 310 and 430 stainless steel, Inconel 600, and Nimonic 75 alloys. The properties measured were thermal conductivity, λ, thermal diffusivity, a, specific heat capacity, Cp, and electric resistivity, ρ. Linear thermal expansivity values are also included to allow corrections to be made to the results of thermal measurements, including density, due to dimensional changes that occur on heating. Definitive NPL values are presented for selected thermophysical properties for three key engineering alloys, over the temperature ranges from ambient to 750 °C and for one alloy up to 500 °C.