26 



Copper and Copper-base Alloys 

 50 



40 



30 



20 



0.10 0.20 0.50 0.40 0.50 0.60 0.70 0.80 

 Addi + ion -to Copper, Percent 



Chart 72. — The effect of araenio on the thermal conductivity of copper 

 based on data by Hanson and Rogers. •" 







200 400 600 800 1000 1200 

 Temp, in Deg. F. (1 Hr. at Temp.) 



Chaht 73. — The effect of elevated temperatures on the Izod impact 

 strength of an annealed 99 % copper, 1 % zinc alloy based on data by 

 Bunting.*^^ 



20 25 30 



Shear S+reng+h -1000 Lb. perSq. In. 

 -Conversion chai't for determination of shear strength of the coppers when tensile strength i 



known. Accurate to ±5 per cent.''*' 



