The Tin Bronzes 



289 



I Z 3 4 5 6 7 



Percen+ Tin 



Chart 70. — The effect of tin on the Erichsen value of copper con- 

 taining 0.40 per cent phosphorus, annealed at various temperatures 

 after having been cold-rolled 60 per cent (reduction of area) based on 

 data by Cook and Tallis.'^"' (Solid lines based on data; dotted lines 

 extrapolated.) 



200 400 600 800 



Temperature, Deq.F (lHra+ Temp.) 

 Chart 72. — The effect of elevated temperature on the tensile 

 strength, percentage reduction of area, and percentage elongation of a 

 phosphor bronze (2.41 % tin, 0.024 % phosphorus, balance copper) 

 according to Huntington. <2i'9> 



130 



120 



110 



, 100 

 ) 



! 90 



; 80 

 j 

 3 70 



I 60 



3 50 



^40 

 J 



5 30 



Code I I 



Previously cold worked 60% 



© 800deg.F 30 min. anneal 

 "© 900 



© 1000deg.F 30 min. anneal 

 '© 1100 « 

 ■0 1200 " 



(6J 1300 •> 



12 3 4 5 6 7 



Percent Tin 



Chart 71. — The effect of tin on the hardness of copper containing 

 0.50 per cent phosphorus, annealed at various temperatures after 

 having been cold-rolled 60 per cent (reduction of area) based on data 

 by Cook and Tallis.<'»' (Solid lines based on data; dotted lines 

 extrapolated.) 



70 



60 



.50 



30 



20 



a 10 



\ 



V 



V 



^ 



A 



Torsional - 

 \sirenqih 



\ 



\ 



Elash'c 



L. s^ limi-t- 



K 



\ 



\ 



:^. 



^./ 



A 



W 



\l 



■I 



M. 



h 



X- 



\ 



To^a/ -fwisi 





200 400 600 800 



Temperature, Deq.F (IHrat Temp.) 



Chart 73. — The effect of elevated temperature on the torsional 

 properties of a phosphor bronze (3.87 % tin, 0.307 % phosphorus, 

 0.16 % iron, balance copper) according to Bregousky and Spring. <"■'' 



