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SAE AMS4138

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SAE AMS4138 Revision B, September 1, 2006 Aluminum Alloy Forgings 4.3Zn - 3.3Mg - 0.60Cu - 0.20Mn - 0.18Cr (7079-T6)
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Description / Abstract: Form:

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

Application:

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.