288 



Copper and Copper-base Alloys 



100 



, 90 



80 



70 



eo 



50 

 40 

 30 

 20 

 10 



I I Code I I I 



Penultimate anneal -|I50 deg.F, 2hn~ 



(Y) 10% reduction by cold work — 



.0 207o reduction by cold work. 



35 7o '• ' 



50 7o » " " •> 



■ 60 7o » " " " 



70 % » » " " - 



12 3 4 5 6 7 



Percent Tin 



Chart 66. — The effect of tin on the Rockwell B hardness of copper 



containing 0.40 per cent phosphorus (cold-rolled varying amounts from 



a ready-to-finish anneal of 1150°F. for 2 hr.) based on data by Cook 



and Tallis.'^* (Solid lines based on data; dotted lines extrapolated.) 



260 



240 



220 



200 



.2 180 



S 160 

 &j 



-g 140 

 a 



^^120 

 75" 



E 100 

 c 



1_ 



c^ 80 

 -a 

 S 60 



— I — \ — f^dTT — \ r~ 



Penultimate anneal - 1150 deg.R^ 2 hr._ 



MJ tO°7o reduction by cold work 



Continued 

 20% reduction by cold work 



35 % " 

 50% <> 

 60 7o " 

 70 % 



:© 

 ^0 



1 2 3 4 5 & 7 



Percent Tin 

 Chart 67. — The effect of tin on the diamond-pyramid hardness of 

 copper containing 0.40 per cent phosphorus (cold-rolled varying 

 amounts from a ready-to-finish anneal of 1150°r. for 2 hr.) based on 

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

 extrapolated.) 



12345678 



Percent Tin 



Chart 68. — The effect of tin on the tensile strength 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.) 



80 



70 



60 



50 



CM 40 



u 30 



20 



Code 

 Previously cold worked 



© 800 Deg.H 30 min. anneal 



900 



© 1000 



'0 1100 



"0 1200 



"0 1300 



012345678 

 Percent Tin 

 Chart 69. — The effect of tin on the percentage elongation in 2 in. of 

 copper containing 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.) 



