The Leaded Brasses 



131 



iio 



100 

 90 

 80 

 70 

 60 

 50 

 40 

 30 

 20 

 10 



I ^" 



CD 400 500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp, in Deg. F.flHr a+ Temp.) 



Chart 125. — The effect of annealing on the Rockwell hardness, 

 percentage elongation in 2 in., and percentage reduction of area of 

 red-brass rod, previously cold-drawn 17 per cent (reduction of area) 

 from extruded material (55.02 % copper, 1.62 % lead, balance zinc) 

 (rod under 1 in. in diameter). 



CD 400 500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp. in Deg.FOHr.a+ Temp.) 



Chart 126. — The effect of annealing on the yield strength of red- 

 brass rod, previously cold-drawn 17 per cent (reduction of area) from 

 extruded material (55.02% copper, 1.62% lead, balance zinc) (rod 

 under 1 in. in diameter). 



