The Leaded Brasses 



105 



0.100 



0.080 



0.060 



0.040 



0020 



700 



1400 



800 900 1000 1100 1200 1300 

 Annealing Temp, in Deg. 1; f I Hr at Temp.) 



Chart 45. — The effect of annealing on the grain-growing character- 

 istics of leaded-brass strip, previously cold-rolled 6 B. & S. Nos. (50 per 

 cent reduction of area) from two different grain sizes, 0.015 and 0.080 

 mm. (63.35 % copper, 2.79 % lead, balance zinc) (0.040-in. stock). 



110 

 100 

 90 



_. 70 



^60 



S-50 



-' 40 



o 



o 



S30 



20 

 10 







Room 400 500 600 700 800 900 1000 1100 1200 1300 

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



Chart 46. — The effect of annealing on the tensile strength and 

 apparent elastic limit of leaded-brass strip, previously cold-rolled 

 6 B. & S. Nos. (50 per cent reduction of area) from two different grain 

 sizes, 0.015 and 0.080 mm. (63.35 % copper, 2.79 % lead, balance zinc) 

 (0.040-in. stock). 



Room 400 500 600 700 800 900 1000 1100 1200 1300 1400 

 Annealing Temp, in Deg.FflHr. a+ Temp.) 



Chart 47. — The effect of annealing on the Rockwell hardness and 

 percentage elongation in 2 in. of leaded-brass strip, previously cold- 

 rolled 6 B. & S. Nos. (50 per cent reduction of area) from two different 

 grain sizes, 0.015 and 0.080 mm. (63.35 % copper, 2.79 % lead, balance 

 zinc) (0.040-in. stock). 



400 500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp, in Deg. F (1 Ht; at Temp.) 



Chart 48. — The effect of annealing on the yield strength of leaded- 

 brass strip, previously cold-rolled 6 B. & S. Nos. (50 per cent reduction 

 of area) from a grain size of 0.015 mm. (63.35 % copper. 2.79 % lead, 

 balance zinc) (0.040-in. stock). 



