thermal diffusivity of carbon steel 1

[soya]

dear friends,
May I know how to get the value of thermal diffusivity for carbon steel at 1123 K?

Thanks in advance.

 

[metengr]

You can either attempt to look up the value, OR you can calculate it based on the following equation;

thermal diffusivity = thermal conductivity/density * heat capacity

thermal conductivity at 1100 deg K = 25.9 W/m K

density at 1100 deg K = 7620 kg/m^3

heat capacity at 1100 deg K = 0.64 kJ/kg K


These values are for AISI Type 1026 CS and were from "Transport Phenomena in Materials Processing" by Poirier and Geiger