Nickel Silvers 



213 



120 

 110 

 100 

 90 

 80 



8.6 



10 



11.0 20.7 29.4 572 44.0 50.0 55.5 60.5 64.8 

 Percent Reduction of Area by Rolling 

 012345 6789 

 BSS Numbers Hard 



Chart 69. — The effect of cold rolling on the tensile strength and 

 apparent elastic limit of 10 per cent nickel-silver strip, previously 

 annealed to two different grain sizes, 0.015 and 0.080 mm. (66.02 % 

 copper, 10.73% nickel, balance zinc) (0.040-in. stock). 



"S 120 



110 



o 100 



90 



80 



70 



60 



50 



40 



30 



11.0 20.7 29.4 372 440 500 55.5 60.5 64.8 68.6 

 Percent Reduction of Area by Rolling 

 01 2 345 6789 10 

 B^S Numbers Hard 

 Ch.\et 70. — The effect of cold rolling on the Rockwell hardness and 

 percentage elongation in 2 in. of 10 per cent nickel-silver strip, previ- 

 ously annealed to two different grain sizes, 0.015 and 0.080 mm. 

 66.02 % copper, 10.73 % nickel, balance zinc) (0.040-in. stock). 



no 



100 

 90 

 80 



JE 70 



cr 

 '^ 60 



\- 



(U 



■^ 50 

 j3 



o 40 



o 



o 



-' 30 

 20 



11.0 20.7 294 J7.2 44.0 50.0 55.5 60.5 64.8 68.6 

 Percent Reduction of Area by Rolling 

 0123456789 10 

 B5/S Numbers Hard 



Chakt 71. — The effect of cold rolling on the yield strengths of 10 

 per cent nickel-silver strip, previously annealed to a grain size of 0.015 

 mm. (66.02 % copper, 10.73 % nickel, balance zinc) (0.040-in. stock). 



too 



90 



80 



d 70 



"^ 60 



(U 



^50 



_i 



o 40 



o 



o 



"- 30 

 20 

 10 



11.0 20.7 29.4 372 440 50.0 55.5 60.5 648 68.6 

 Percent Reduction of Area by Rolling 

 01 234 56789 10 

 B&S Numbers Hard 



CH.4.HT 72. — The effect of cold rolling on the yield strengths of 10 

 per cent nickel-silver strip, previously annealed to a grain size of 

 0.080 mm. (66.02 % copper, 10.73 % nickel, balance zinc) (0.040-in. 

 stock) . 



