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 there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2011 SAE International All rights reserved. No part of this p
3、ublication may 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: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS4297A AEROSPACE MATERIAL SPECIFICATION AMS 4297 REV. A Issued 1998-10 Revised
5、2006-10 Reaffirmed 2011-11 Superseding AMS 4297 Aluminum Alloy Sheet 4.4Cu - 1.5Mg - 0.60Mn (2024; -T4 Flat Sheet) Solution Heat Treated, High Formability (Composition similar to UNS A92024) RATIONALE This document has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE 1.1 Form
6、 This specification covers an aluminum alloy in the form of sheet. 1.2 Application This sheet has been used typically for formed structural parts of moderate strength, but usage is not limited to such applications. 1.2.1 Certain design and processing procedures may cause these products to become sus
7、ceptible to stress-corrosion cracking; ARP823 recommends practices to minimize such conditions. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subse
8、quent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonwealth D
9、rive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS 2355 Quality Assurance Sampling and Testing, Aluminum Alloys and Magnesium Alloys, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded Rings AMS 2772 Hea
10、t Treatment of Aluminum Alloy Raw Materials ARP823 Minimizing Stress-Corrosion Cracking in Wrought Heat-Treatable Aluminum Alloy Products SAE AMS 4297A Page 2 of 4 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 61
11、0-832-9585, www.astm.org. ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM B 666/B 666M Identification Marking of Aluminum and Magnesium Products 2.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036, Tel: 212-642-4900
12、, www.ansi.org. ANSI H35.2 Dimensional Tolerances for Aluminum Mill Products ANSI H35.2M Dimensional Tolerances for Aluminum Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Tables 1, determined in accordance with AMS 2355. TABLE 1
13、- COMPOSITION Element min max Silicon 0.50 Ir 0.50 Copper 3.8 4.9 Manganese 0.30 0.9 Magnesium 1.2 1.8 Chromium - 0.10 Zinc - 0.25 Titanium - 0.15 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder 3.2 Condition Solution heat treated in accordance with AMS 2772. 3.3 Properti
14、es The sheet shall conform to the following requirements, determined in accordance with AMS 2355: 3.3.1 Tensile Properties Shall be as shown in Table 2. TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thickness Inch Tensile Strengthksi Yield Strength at 0.2% Offset ksi Elongation in
15、2 inches or 4D % Over 0.020 to 0.128, incl 62 40 15 SAE AMS 4297A Page 3 of 4 TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Thickness Millimeters Tensile StrengthMPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % Over 0.51 to 3.25, incl 425 276 15 3.3.2 Bending Sheet shall
16、 withstand, without cracking, bending at room temperature through an angle of 180 degrees around a diameter equal to the bend factor shown in Table 3 times the nominal thickness of the product with axis of bend parallel to the direction of rolling. TABLE 3 - BENDING PARAMETERS Nominal Thickness Inch
17、 Nominal Thickness Millimeters Bend Factor Over 0.020 to 0.051, incl Over 0.51 to 1.30, incl 2 Over 0.051 to 0.128, incl Over 1.30 to 3.25, incl 4 3.4 Quality Product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections d
18、etrimental to usage of the product. 3.5 Tolerances Shall conform to all applicable requirements of ANSI H35.2 or ANSI H35.2M 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the sheet shall supply all samples for vendors tests and shall be responsible for the performan
19、ce of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties (3.3.1), bending 3.3.2 and
20、 tolerances (3.5) are acceptance tests and except for composition shall be done on each lot. 4.3 Sampling and Testing Shall be in accordance with AMS 2355. 4.4 Reports The vendor of sheet shall furnish with each shipment a report stating that the sheet conforms to the composition, and tolerances and
21、 showing the numerical results of tests on each inspection lot to determine conformance to the other acceptance test requirements. This report shall include the purchase order number, inspection lot number, AMS 4297A, size, and quantity. The report shall also identify the producer, the product form,
22、 and the mill produced size. 4.5 Resampling and Retesting Shall be in accordance with AMS 2355. SAE AMS 4297A Page 4 of 4 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with ASTM B 666/B 666M. 5.2 Packaging 5.2.1 Sheet shall be protected during shipment and storage, by interle
23、aving with paper sheets. 5.2.2 Sheet shall be prepared for shipment in accordance with ASTM B 660 and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the sheet to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor
24、shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Sheet not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 A change bar (|) located in the
25、left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of a specification. An (R) symbol to the left of the document title indicates a complete revision of the specification, including technical revision
26、. Change bars and (R) are not used in original publications, nor in specifications that contain editorial changes only. 8.2 Terms used in AMS are clarified in ARP1917. 8.3 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information. 8.4 Purchase documents should specify not less than the following: AMS 4297A Size of sheet desired Quantity of sheet desired. PREPARED BY AMS COMMITTEE “D“
