244 



Copper and Copper-base Alloys 



d 130 



60 



£ 50 



40 







CD. 550 600 700 800 900 1000 MOO 1200 1300 1400 

 Annealfng Temp, m Deg. FflHr. a+ Temp.) 



Chart 13. — The effect of annealing on the tensile strength and 

 apparent elastic limit of Type A sUicon-bronze rod, previously cold- 

 drawn 55 per cent (reduction of area) from material having a grain size 

 of 0.040 mm. (96.30 % copper, 3.10 % silicon, 0.42 % tin) (rod under 

 1 in. in diameter). 



CD 550 600 700 800 '900 1000 1100 1200 1300 1400 

 Annealmg Temp, in Deg.F; ( IHr. a+ Temp.) 



Chart 14. — The effect of annealing on the Rockwell hardness, 

 percentage elongation in 2 in., and percentage reduction of area and 

 grain size of Type A sUioon-bronze rod, previously cold-drawn 55 per 

 cent (reduction of area) from material having a grain size of 0.040 mm. 

 (96.30 % copper, 3.10 % silicon, 0.42 % tin) (rod under 1 in. in diameter). 



70 



60 



50 



40 



30 



20 







100 200 300 400 500 600 700 800 900 1000 

 Tempera+ure in Deg.F. ( IHnat Temp.) 



Chart 15. — The effect of elevated temperature on the tensile 

 strength, reduction of area, and percentage elongation in 2 in. of Type 

 A silicon-bronze rod (copper 96.00 %, silicon 3.00 %, manganese 1.00 %) 

 based on data by W. H. Bassett''"'" (rod under 1 in. in diameter). 



110 



-. 100 



90 



gi 80 



.- 70 



60 



50 



30 



80 



40 50 60 70 



Shear Strength, 1000 Lb. per Sq. In. 

 Chart 16. — This chart shows the relationship between shear strength 

 and tensile strength of Types A and B silicon bronzes.'^'' 



