The Aluminum Bronzes 



259 



400 500 600 700 800 900 1000 1100 1200 1300 1400 

 Temp^era+ure in Deg.Ff IHr. at Temp.) 



Chart IS. — The effect of annealing on the yield strength of 8 

 per cent aluminum-bronze rod, previously cold-drawn 50 per cent 

 (reduction of area) from material having a grain size of 0.070 mm. 

 (91.73 % copper, 8.01 % aluminum) (rod under 1 in. in diameter). 



70 



60 



IT 50 



-40 







200 400 600 800 1000 



Temperature in Deg.F\ f IHr at Temp.) 



Chart 16. — Effect of temperature on the tensile strength and 

 percentage elongation in 2 in. of 7 per cent aluminum bronze (6.73 % 

 aluminum). ^^^' 



100 

 ^ 90 



cH" 80 



1- 

 <u 

 a 70 



o 60 

 o 



o 

 - 50 



c 



■^ 40 

 S 30 

 Z 20 



-300 -200 -100 100 



Temperoiture Deg.F. (l Hr at Temp.) 



-Effect of low temperature on tensile strength, percentage elongation in 2 in., and percentage reduction of area of 8 per cent aluminum 



bronze (7.31 % aluminum). <2'' 



