Nickel Silvers 



207 



1000 1100 1200 1300 1400 



Annealing Temp, in Dcg-Ffl Hr a+ Temp.) 



Chart 49. — The effect of annealing on the grain-growing charac- 

 teristics of 15 per cent nickel-silver strip, previously cold-rolled 6 B. & 

 S. Nos. (50 per cent reduction of area) from two different grain sizes, 

 0.015 and 0.100 mm. (66.18 % copper, 15.02 % nickel, balance zinc) 

 (0.040-in. stock). 



Room 400 500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp, in Deg.ECl.Hr of Temp.) 



Chart 50. — The effect of annealing on the tensile strength and 

 apparent elastic limit of 15 per cent nickel-silver strip, previously 

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

 different grain sizes, 0.015 and 0.100 mm. (66.18% copper, 15.02% 

 nickel, balance zinc) (0.040-in. stock). 



>^\\Q 



CO 



100 



o 90 



m 80 



50 



jj 40 



D 30 



X 



V, 20 



I?oom400 500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp, in Peg. 1; (1 Hr.a+ Temp.) 



Chart 51. — The effect of annealing on the Rockwell hardness and 

 percentage elongation in 2 in. of 15 per cent nickel-silver strip, previ- 

 ously cold-rolled 6 B. & S. Nos. (50 per cent reduction of area) from 

 two different grain sizes, 0.015 and 0.100 mm. (66.18 % copper, 15.02 % 

 nickel, balance zinc) (0.040-in. stock). 



100 

 90 

 80 

 , 70 

 60 

 50 

 40 

 30 

 20 







400 500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp.in Deg.F.flHr. at Temp.) 



Chart 52. — The effect of annealing on the yield strength of 15 

 per cent nickel-silver strip, previously coid-roUed 6 B. & S. Nos. (50 

 per cent reduction of area) from a grain size of 0.015 mm. (66.18 % 

 copper, 15.02 % nickel, balance zinc) (0.040-in. stock). 



