Table 3. Thermal Conductivities of Some 

 Potential Building Materials 



Metal 



Thermal Conductivity 

 [(Btu/(hr)(ft 2 )(°F/in 



k 

 )] 



Silver 



2,900 a 





Copper 



2,700 





Aluminum alloys 



1,500 b 





Magnesium alloy 



360 C 





90-10 Copper-nickel 



310 





70-30 Copper-nickel 



200 





Lead, pure 



240 





Monel 



174 





Stainless steels 



90 to 180 





Hastelloy (d) 



145 





Titanium, pure 



118 





Typical alloy 



60 





Shown for comparison; has highest value 

 of any known metal. 



Maximum. 



Typical. 



34 



