Factors determining the probability of stress corrosion cracking of copper alloys are concentration of ammonia present, concentration of water, concentration of air, stress level and susceptibility of particular alloy to stress corrosion cracking. In case histories discussed the contribution of each of these factors is evaluated. Specific cases considered include failure of red-brass pipe, cold-drawn copper water tubing, 70–30 cupronickel tubing, Admiralty and aluminum brass condenser tubes, and yellow brass screw shells. The relative resistance of 10 copper alloys to stress corrosion cracking is listed. The role of ammonia in causing stress corrosion cracking of copper alloys is considered in detail. 3.2.2

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Copyright 1959 by the National Association of Corrosion Engineers.
1959
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