80 



Copper and Copper-base Alloys 



110 

 100 

 90 

 80 

 70 

 60 

 50 

 40 

 30 

 20 

 10 



II.O 20.7 29.4 37.2 44.0 50.0 55.5 60.5 64.8 68.6 

 Percen+ Reduc+ion of Area by Polling 

 0)2 3456789 10 

 BS<S Numbers Hard 



Chart 159. — The effect of cold rolling on the tensile strength and 

 apparent elastic limit of Muntz metal strip, previously annealed to 

 two different sizes, 0.015 and 0.045 mm. (60.50 % copper) (0.040-in. 

 stock) . 



D 1? 

 o 



11.0 20.7 29.4 372 44.0 50.0 55.5 60.5 64.8 68.6 

 Percent Reduc+ion of Area by Rolling 

 012 3456789 10 

 BS-S Numbers Hard 



Chart 160. — The effect of cold rolling on the Rockwell hardness and 

 percentage elongation in 2 in. of Muntz metal strip, previously annealed 

 to two different grain sizes, 0.015 and 0.045 mm. (60.50 % copper) 

 (0.040-in. stock). 



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 

 I 23456 789 10 

 B and S Numbers Hard 



Chart 161. — The effect of cold rolling on the yield strengths of 

 Muntz metal strip, previously annealed to a grain size of 0.015 mm. 

 (60.50 % copper) (0.040-in. stock). 



. 90 

 _c 

 d-80 



Q. 



^ 60 

 § 50 



CD 



~ 40 

 30 

 20 

 10 







110 20.7 294 372 44.0 50.0 55.5 60.5 648 68.6 

 Percent Reduction of Area by Rolling 

 1 2345 6789 10 

 B and S Numbers Hard 

 Chart 162. — The effect of cold rolling on the yield strengths of 

 Muntz metal strip, previously annealed to a grain size of 0.045 mm. 

 (60.50 % copper) (0.040-in. stock). 



