The Brasses 



81 



0.070 



0.060 - 



0.050 



0.040 



0.030 



0.020 



0.010 



0.000 



600 800 1000 1200 1400 



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



Chart 163. — The effect of annealing on the grain-growing charac- 

 teristics of Muntz metal strip, previously cold-rolled 6 B. & S. Nos. 

 (50 per cent reduction of area) from two different grain sizes, 0.015 

 and 0.045 mm. (60.50 % copper) (0.040-in. stock). 



500 600 700 800 900 1000 1100 1200 1300 1400 

 Annealing Temp, in Deg. F. (iHn at Temp.) 



Chart 164. — The effect of annealing on the tensile strength and 

 apparent elastic limit of Muntz metal strip, previously coId-roUed 

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

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



500 600 700 800 900 lOOO 1100 1200 1300 1400 

 Annealing Temp, in Deg.Ff I Hr al Temp.) 



Chart 165. — The effect of annealing on the Rockwell hardness and 

 percentage elongation in 2 in. of Muntz metal strip, previously cold- 

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

 grain sizes, 0.015 and 0.045 mm. (60.50 % copper) (0.040-in. stock). 



60 - 



0-50 



t 40 

 a 



^ 30 



o 



o 20 

 o 



10 



500 600 700 800 900 1000 IIOO 1200 1300 1400 

 Annealing Temp, in Deg. F (1 Hr. a+ Temp.) 



Chart 166. — The effect of annealing on the yield strength of Muntz 

 metal strip, previously cold-roUed 6. B. & S. Nos. (50 per cent reduc- 

 tion of area) from a grain size of 0.015 mm. (60.50 % copper) (0.040-in. 

 stock). 



