88 



Copper and Copper-base Alloys 



180 



160 



140 



120 



SlOO 



c 



80 



60 



40 



20 



58 



50 



42 34 26 



Percen+age of Zinc 



200 400 600 800 1000 1200 1400 1600 

 Tempera + ure, Deg.F. (iHr. at Temp. 



CH.VET 191. — The effect of chemical composition on Brinell hardness Ch.^rt 192. — The effect of elevated temperature on the Brinell hard- 



of copper-zinc alloys at various temperatures according to Edwards ness of two copper-zinc alloys according to Edwards and Herbert.''^''' 

 and Herbert.*"''' (B — 65.10 % copper; D — 56.84 % copper.) 



Cu% 100 90 80 70 60 



Zn% 10 20 30 40 



Chabt 193. — The tensile strength, fatigue, and corrosion fatigue strength of alloys of copper and zinc according to H. J. Gough.'' 



