SAE-AMS-QQ-A-250-12-1997-R2007.pdf
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1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefr
2、om, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication may
3、 be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER:Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fa
4、x: 724-776-0790 Email: custsvcsae.org SAE WEB ADDRESS:http:/www.sae.org Aluminum Alloy 7075, Plate and Sheet A97075 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 contai
5、ns 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 0
6、01) 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 s
7、tandard 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 SPECIFICATION AMS-QQ-A-250/12 Issue
8、dAUG 1997 ReaffirmedAPR 2007 -,-,- AMS-QQ-A-250/12SAEAMS-QQ-A-250/12 - 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 te
9、mpers 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 i
10、n Table I. TABLE I. Chemical Composition 1/ Percent ElementMinimumMaximum Zinc5.16.1 Magnesium2.12.9 Copper1.22.0 Chromium0.180.28 Manganese-0.30 Iron-0.50 Silicon-0.40 Titanium-0.20 Other Elements, each-0.05 Other Elements, total-0.15 AluminumRemainder 1/ Analysis shall routinely be made only for t
11、he 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 -,-,- AMS-QQ-A-250/12SAEAMS
12、-QQ-A-250/12 - 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 mat
13、erial 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) Temper Thickness Inches Tensile Strength minimum ksi (UOS) 1/ Yield Strength at 0.2 pe
14、rcent Offset or at extension shown Elongation in 2 inches or 4 times D 2/, 3/ minimum percent Minimum ksi (UOS) 1/ Extension under load inch/inch O0.015 - 0.49940.0 4/21.0 4/0.0040 4/10 0.500 - 2.00040.0 4/ - -10 T6 and0.008 - 0.01174.063.00.0083 5 T62 5/0.012 - 0.03976.067.00.0085 7 0.040 - 0.12578
15、.068.00.0086 8 0.126 - 0.24978.069.00.0087 8 T6510.250 - 0.49978.067.00.0085 9 and T620.500 - 1.00078.068.00.0086 7 5/, 7/1.001 - 2.00077.067.00.0085 6 2.001 - 2.50076.064.00.0082 5 2.501 - 3.00072.061.00.0079 5 3.001 - 3.50071.058.00.0076 5 3.501 - 4.00067.054.00.0072 3 T730.040 - 0.24967.056.00.00
16、74 8 T73510.250 - 1.00069.057.00.0075 7 1.001 - 2.00069.057.00.0075 6 2.001 - 2.50066.052.00.0070 6 2.501 - 3.00064.049.00.0067 6 3.001 - 3.50063.049.00.0067 6 3.501 - 4.00061.048.00.0066 6 FAll 6/ 6/ 6/ 6/ 1/ Properties are minimum, unless otherwise specified, abbreviated: UOS. 2/ Not required for
17、material 1/2 inch or less in width. 3/ D represents specimen diameter. 4/ Maximum. 5/ Material in the T62 temper is not available from material producers. 6/ No requirements. 7/ The properties specified for the T651 temper are those formerly specified for the T6 temper. -,-,- AMS-QQ-A-250/12SAEAMS-Q
18、Q-A-250/12 - 4 - 3.2.2Mechanical Properties After Heat Treatment: In addition to conforming to the requirements of 3.2.1, material in the tempers identified in the following paragraphs shall, after having been processed to tempers also identified therein, have properties conforming to those specifie
19、d in Table II, as applicable. 3.2.2.1Material in the Annealed (O) and As-Fabricated (F) Tempers: Material in the O and F tempers, without the subsequent imposition of cold work or forming operations, shall, after proper solution and artificial aging treatments, develop the properties specified for t
20、he T6 and T62 tempers. Material in the O and F tempers, without the subsequent imposition of cold work or forming operations, shall be heat treatable to the properties specified for the T73 temper. Such capability shall be demonstrated when specified (See 6.2 and 6.4). 3.2.2.2Material in the T6, T73
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