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SAE AMS4138 Revision B, September 1, 2006
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Aluminum Alloy Forgings 4.3Zn - 3.3Mg - 0.60Cu - 0.20Mn - 0.18Cr (7079-T6)
Includes all amendments and changes through Cancellation Notice , September 2006
Additional Comments: CNCL NO S/S
Page Count:6
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AIA/NAS Aerospace Standards

This specification covers an aluminum-base alloy in the form of die forgings, hand forgings, and forging stock.


Primarily for structural applications requiring material with high strength in medium to heavy sections. Certain design and processing procedures may cause this material to be susceptible to stress corrosion cracking; ARP 823 recommends practices to minimize such conditions.