Thermal conductivity of substances

Substance	Thermal Conductivity  k [J/(s-m-C)]	Substance	Thermal Conductivity  k [J/(s-m-C)]
Syrofoam	0.010	Glass	0.80
Air	0.026	Concrete	1.1
Wool	0.040	Iron	79
Wood	0.15	Aluminum	240
Body fat	0.20	Silver	420
Water	0.60	Diamond	2450