86 



Copper and Copper-base Alloys 



60 



50 



o 40 



30 



a, 20 



10 



200 400 600 800 1000 1200 1400 1600 

 Temperature, Deg. F: flHr. at Temp.) 



Chaht 183. — The effect of elevated temperature on the tensile 

 strength and percentage elongation in 2 in. of rolled Muntz metal 

 (60.52 % copper, 0.40 % lead) according to Bengough.*"''' 



?00 400 600 800 1000 1200 1400 1600 



Temperature, Deg.F. (I Hr. at Temp.) 



Chart 1S4. — The effect of elevated temperature on the tensile 

 strength and percentage elongation in 2 in. of rolled Muntz metal 

 (59.52 % copper, 0.74 % lead, 0..39 % nickel) according to Bengough.d'''* 



'^ 15x10^ 



13x10 



S 11x106 



2 9x10 



200 400 600 800 



Temperature. Deg. F. (IHr at Temp.) 



Chart 1S5. — The effect of elevated temperature on the tensile 

 strength, elastic hmit, modulus of elasticity, Brinell hardness, and 

 percentage elongation in 2 in. of a modified Muntz metal (58.96 % 

 copper, 0.56 % tin, 0.67 % lead) according to Lea."^''^'" 



40 



45 



50 



Stiear Strength, 1,000 Lb. per Sq. In. 



Chart 186. — Conversion chart for determination of shear strength 

 of Muntz metal (60.00 % copper, balance zinc) when tensile strength 

 is known. Accurate to ±5 %.^^^ 



