The Aluminum Bronzes 



261 



Extr. 5 10 



Percent Reduc+ion b^ Cold Working 



Chart 20. — The effect of cold drawing on the yield strength of 

 10 per cent aluminum-bronze rod, previously extruded (88.83 % copper, 

 10.02 % aluminum, 0.77 % iron, 0.31 % manganese) (rod under 1 in. in 

 diameter). 



CD 400 500 600 700 800 900 1000 1100 1200 1300 

 Anneoiiing Temp.in Deg.RO Hr.a+Temp.) 



Chart 21. — The effect of annealing on the tensile strength and 

 apparent elastic limit of 10 per cent aluminum-bronze rod, previotisly 

 cold-drawn 5 per cent (reduction of area) from extruded material 

 (88.83 % copper, 10.02 % aluminum, 0.77 % iron, 0.31 % manganese) 

 (rod under 1 in. in diameter). 



CD 400 500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp.in Deg.FCl Hr.a+Temp.) 



Chart 22. — The effect of annealing on the Rockwell hardness, 

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

 10 per cent aluminum-bronze rod, previously cold-drawn 5 per cent 

 (reduction of area) from extruded material (88.83 % copper, 10.02 % 

 aluminum, 0.77 % iron, 0.31 % manganese) (rod under 1 in. in diameter) . 



CD 400 500 600 700 800 900 1000 1100 1200 1300 

 Annealing Temp.in Deg.F. ( I Hr.a+Temp.) 



Chart 23. — The effect of annealing on the yield strength of 10 

 per cent aluminum-bronze rod, previously cold-drawn 5 per cent 

 (reduction of area) from extruded material (SS.S3 % copper, 10.02 % 

 aluminum, 0.77 % iron, 0.31 % manganese) (rod under 1 in. in diameter). 



