thermal conductivity tables?

[heiroglif]

In a thermal conductivity table, what does the temperature column represent in respect to the given coefficient "K" ?

E.G

http://www.engineeringtoolbox.com/thermal-conductivity-metals-d_858.html

does it represent the heat capacity of the material?

[Q_Goest]

Hi heiroglif,
I think this post probably should go in the Materials & Chemical Engineering Forum. But to answer your question, thermal conductivity, like many material properties, is dependant on temperature. Properties can vary significantly depending on temperature. The web page you've pointed to is just giving you the thermal conductivity at a few different temperatures. You could use a linear extrapolation to determine the thermal conductivity between two temperatures, or just find a better database that gives you properties as a function of temperature.