SAE AMS-QQ-A-250-12-1997

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http://www.sae.orgAluminum Alloy 7075, Plate and SheetA97075

RATIONALE

This document has been reaffirmed to comply with the SAE 5-year Review policy.

NOTICE

This document has been taken directly from Federal Specification QQ-A-250/12F and contains only minor editorial and format changes required to bring it into conformance with the publishing requirements of SAE technical standards.

The original Federal Specification was adopted as an SAE standard under the provisions of the SAE Technical Standards Board (TSB) Rules and Regulations (TSB 001) pertaining to accelerated adoption of government specifications and standards. TSB rules provide for (a) the publication of portions of unrevised government specifications and standards without consensus voting at the SAE Committee level, (b) the use of the existing government specification or standard format, and (c) the exclusion of any qualified product list (QPL) sections.

The complete requirements for procuring 7075 aluminum alloy plate and sheet described herein

shall consist of this document and the latest issue of AMS-QQ-A-250.AEROSPACE MATERIAL SPECIFICATIONAMS-QQ-A-250/12

IssuedAUG 1997ReaffirmedAPR 2007

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- 2 -1.SCOPE AND CLASSIFICATION:

1.1Scope:

This specification covers the specific requirements for 7075 aluminum alloy plate and sheet.

1.2Classification:

1.2.1Tempers: The plate and sheet are classified in one of the following tempers as specified (See 6.3 and 6.4): O, T6, T62, T73, T651, T7351, or F temper. Definitions of these tempers are specified in AMS-QQ-A-250.

2.APPLICABLE DOCUMENTS:

See AMS-QQ-A-250.

3.REQUIREMENTS:

3.1Chemical Composition:

3.1.1The chemical composition shall conform to the requirements specified in Table I.

TABLE I. Chemical Composition 1/PercentElementMinimumMaximumZinc5.16.1Magnesium2.12.9Copper1.22.0Chromium0.180.28Manganese--0.30Iron--0.50Silicon--0.40Titanium--0.20Other Elements, each--0.05Other Elements, total--0.15AluminumRemainder

1/Analysis shall routinely be made only for the elements specifically mentioned in Table I. If, however, the presence of other elements is indicated or suspected in amounts greater than the specified limits, further analysis shall be made to determine that these elements are not present in excess of specified limits

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- 3 -3.2Mechanical Properties:

3.2.1Mechanical Properties of Material as Supplied: The mechanical properties perpendicular to the direction of the final rolling, except for material under 9 inches in width, shall conform to the requirements of Table II for the temper specified. For material under 9 inches in width, the mechanical properties parallel to the direction of final rolling shall conform to the requirements of Table II for the temper specified.

TABLE II. Mechanical Properties (See 6.6)

TemperThicknessInchesTensileStrengthminimumksi(UOS)1/Yield Strength at0.2 percent Offsetor at extensionshownElongation in2 inches or 4times D 2/, 3/minimumpercentMinimumksi(UOS) 1/Extensionunder loadinch/inchO0.015 - 0.49940.0 4/21.0 4/0.0040 4/100.500 - 2.00040.0 4/ -- --10T6 and0.008 - 0.01174.063.00.0083 5T62 5/0.012 - 0.03976.067.00.0085 70.040 - 0.12578.068.00.0086 80.126 - 0.24978.069.00.0087 8T6510.250 - 0.49978.067.00.0085 9and T620.500 - 1.00078.068.00.0086 75/, 7/1.001 - 2.00077.067.00.0085 62.001 - 2.50076.064.00.0082 52.501 - 3.00072.061.00.0079 53.001 - 3.50071.058.00.0076 53.501 - 4.00067.054.00.0072 3T730.040 - 0.24967.056.00.0074 8T73510.250 - 1.00069.057.00.0075 71.001 - 2.00069.057.00.0075 62.001 - 2.50066.052.00.0070 62.501 - 3.00064.049.00.0067 63.001 - 3.50063.049.00.0067 63.501 - 4.00061.048.00.0066 6FAll