Alloy 25 (UNS C17200) is the most commonly specified beryllium copper and is available in several wrought forms. In its age-hardened condition, Alloy 25 attains the highest strength and hardness of any commercial copper base alloy. The ultimate tensile strength can exceed 200 ksi, while the hardness approaches Rockwell C45. Also, in the fully aged condition, the electrical conductivity is a minimum of 22% IACS (International Annealed Copper Standard). Alloy 25 also exhibits exceptional resistance to stress relaxation at elevated temperatures.

12' Random Lengths
Condition H (Hardened)
Specifications:
CDA 172 ASTM B196
AMS 4650 UNS 17200
Nominal Composition:
Copper: 98.1% Beryllium: 1.9%
Also available in condition A (annealed).
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Item #

Diameter

Diameter

Weight

Weight per 12' Length

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N/A 7/16 inches N/A 0.4375 inches11.1125 mm N/A 0.5376 lbs/ft0.80005632 kg/m N/A 6.451 lbs2.9255285 kg
N/A 4 1/2 inches N/A 4.5 inches114.3 mm N/A 56.8740 lbs/ft84.6398868 kg/m N/A 682.487 lbs309.5078545 kg
N/A 15/32 inches N/A 0.4688 inches11.90752 mm N/A 0.6173 lbs/ft0.91866586 kg/m N/A 7.407 lbs3.3590745 kg
N/A 17/32 inches N/A 0.5313 inches13.49502 mm N/A 0.7928 lbs/ft1.17984496 kg/m N/A 9.514 lbs4.314599 kg
N/A 9/16 inches N/A 0.5625 inches14.2875 mm N/A 0.8887 lbs/ft1.32256334 kg/m N/A 10.664 lbs4.836124 kg
N/A 5/8 inches N/A 0.625 inches15.875 mm N/A 1.0971 lbs/ft1.63270422 kg/m N/A 13.165 lbs5.9703275 kg
N/A 3/4 inches N/A 0.75 inches19.05 mm N/A 1.5798 lbs/ft2.35105836 kg/m N/A 18.958 lbs8.597453 kg
N/A 13/16 inches N/A 0.8125 inches20.6375 mm N/A 1.8541 lbs/ft2.75927162 kg/m N/A 22.249 lbs10.0899215 kg
N/A 7/8 inches N/A 0.875 inches22.225 mm N/A 2.1503 lbs/ft3.20007646 kg/m N/A 25.804 lbs11.702114 kg
N/A 15/16 inches N/A 0.9375 inches23.8125 mm N/A 2.4685 lbs/ft3.6736217 kg/m N/A 29.622 lbs13.433577 kg
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