66 



Copper and Copper-base Alloys 



110 



100 



90 



80 



c 70 



^ 60 



S.50 



o 



S30 



20 



11.0 20.7 29.4 37.2 44.0 50.0 55.5 60.5 64.8 68.6 

 Percent Reduc+ion of Area by Rolling 

 01 23456789 10 

 BSS Numbers Hard 



Chart 115. — The effect of cold rolling on the tensile strength and 

 apparent elastic limit of deep-drawing brass strip, previously annealed 

 to two different grain sizes, 0.015 and 0.100 mm. (68.41 % copper) 

 {0.040-in. stock). 



^120 

 o 

 2 110 



CD 

 D 



,00 



90 



'^ 60 

 h, 50 



-D 40 



v- 

 



t ^° 



"ai 



$ 20 



u 



i2 10 

 



11.0 207 29.4 37.2 44.0 50.0 555 60.5 64.8 68.6 

 Percenf Reduc+ion of Area by Rolling 

 01 23456789 10 

 BS/S Numbers Hard 



Chart 116. — The effect of cold rolling on the Rockwell hardness and 

 percentage elongation in 2 in. of deep-drawing brass strip, previously 

 annealed to two different grain sizes, 0.015 and 0.100 mm. (68.41 % 

 copper) (0.040-in. stock). 



100 

 90 

 80 



^ 60 

 S. 50 



o ^0 

 o 



S 30 

 20 

 10 



11.0 207 294 372 44.0 50.0 555 60.5 648 68.6 

 Percent Reduc+ion of Area by Rolling 

 123456789 10 

 B&S Numbers Hard 



Chart 117. — The effect of cold rolling on the yield strengths of 

 deep-drawing brass strip, previously annealed to a grain size of 0.015 

 mm. (68.41 % copper) (0.040-in. stock). 



11.0 20.7 294 372 440 50.0 55.5 60.5 648 68.6 

 Percent Reduc+ion of Area by Rolling 

 01 2 345678910 

 B5fS Numbers Hard 



Chart 118. — The effect of cold rolling on the yield strengths of 

 deep-drawing brass strip, previously annealed to a grain size of 0.100 

 mm. (68.41 % copper) (0.040-in. stock). 



