174 



Copper and Copper-base Alloys 



100 200 300 400 500 



Tempera+ure in Deg.FOHKa+ Temp.) 



600 



Chart 125. — Effect of elevated temperature on torsional properties 

 of Parson's manganese bronze (59.58 % copper, 1.22 % iron, 0.64 % tin, 

 0.34 % Eiluminum, balance zinc) according to Bregousky and Spring.^''^^' 



200 400 600 800 



Tempera+ure in Deg.Hfl Hna+Temp.) 



Chart 126. — Effect of elevated temperature on the tensile proper- 

 ties and Brinell hardness of a cold-worked manganese bronze (56.91 % 

 copper, 0.75 % tin, 0.19 % manganese, 0.82 % iron, 0.66 % lead. 0.18 % 

 aluminum, 0.21 % nickel) according to Lea.*''"''^' 







600 



100 200 300 400 500 



Tempera+ure, Deg.F ( IHra+Temp.) 

 Chakt 127. — Effect of elevated temperature on torsional properties of delta metal (56.56 % copper, 2.40 % iron, 0.76 % tin, 0.56 % lead, 0.004 % 



phosphorus) according to Bregousky and Spring.'^'^s) 



