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AMS4470A - Aluminum Alloy, Plate (7085-T7451), 7.5Zn - 1.6Cu - 1.5Mg - 0.12Zr, Solution Heat Treated, Stress-Relieved, and Overaged

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Document Number: AMS4470A
Project Initiation: 09-04-2012
Project Number:
Revision Number: A
Sponsor Name: Michael Brandt
Title
Aluminum Alloy, Plate (7085-T7451), 7.5Zn - 1.6Cu - 1.5Mg - 0.12Zr, Solution Heat Treated, Stress-Relieved, and Overaged
Scope
This specification covers an aluminum alloy in the form of plate. This product may be used in aerospace applications requiring a high level of mechanical properties and fracture toughness, good resistance to stress-corrosion cracking and resistance to exfoliation corrosion, but usage is not limited to such applications.
Rationale
AMS4470A adds 3.000-4.000 thickness 7085-T7451 aluminum plate to this document, modifies tensile (Table 2) and fracture toughness properties (Table 3) for expanded gage ranges, and revises fracture toughness specimen criteria (3.3.5).
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