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 theref
2、rom, 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 2013 SAE InternationalAll rights reserved. No part of this publication may b
3、e 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: +1 724-776-4970 (outside USA)Fax
4、: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS4271AAEROSPACEMATERIALSPECIFICATIONAMS4271 REV. AIssued 2011-12Stabilized 2013-07Superseding AMS4271Al
5、uminum Alloy, Sheet and Plate4.4Cu - 1.5Mg - 0.60Mn; (2024-T861),Solution Heat Treated and Cold Worked, and Artificially Aged(Composition similar to UNS A92024)RATIONALEAMS4271A stabilizes this document because equivalent requirements are contained in a prior specification, AMS4193, which is recomme
6、nded for future procurement.STABILIZATION NOTICEAMS4271A has been declared “STABILIZED“ by AMS Committee D. This document will no longer be updated and may no longer represent standard industry practice. The original issue of this document was in December, 2011, and it has not been updated since tha
7、t time. Users of this document should refer any certification issues (e.g. exceptions listed on the certification report) to the cognizant engineering organization for their disposition. CAUTION: In many cases the purchaser is not the cognizant engineering organization (i.e. purchaser may be a sub t
8、ier supplier).AMS Committee D recommends that the following technically equivalent (e.g. properties, fit, form, function) specification be used for future procurement. This listing does not constitute authority to substitute this specification for the “STABILIZED” specification.AMS4193 Aluminum Allo
9、y, Sheet and Plate, 4.4Cu 1.5Mg 0.60Mn (2024-T861), Solution Heat Treated, Cold Worked, and Precipitation Heat TreatedCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4271A Page 2 of 51. SCOPE1
10、.1 FormThis specification covers an aluminum alloy in the form of sheet and plate supplied in the -T861 temper.1.2 ApplicationThese products have been used typically for structural parts requiring a combination of high strength and good corrosion resistance and whose fabrication does not involve wel
11、ding, but usage is not limited to such applications.2. APPLICABLE DOCUMENTSThe 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 subsequent revision of a document unless a specifi
12、c 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 PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7
13、323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Alloy, Wrought Products (Except Forging Stock), and Rolled, Forged, or Flash Welded RingsAMS2772 Heat Treatment of Aluminum Alloy Raw MaterialsAS1990
14、Aluminum Alloy TempersCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4271A Page 3 of 52.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Consho
15、hocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM B 594 Ultrasonic Inspection of Aluminum-Alloy Products for Aerospace ApplicationsASTM B 660 Packaging/Packing of Aluminum and Magnesium ProductsASTM B 666/B 666M Identification Marking of Aluminum and Magnesium Alloy Products2.3 ANSI Public
16、ationsAvailable from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900,www.ansi.org.ANSI H 35.2 Dimensional Tolerances for Aluminum Mill ProductsANSI H 35.2M Dimensional Tolerances for Aluminum Mill Products (Metric)3. TECHNICAL REQUIREMENTS3.1 Co
17、mpositionShall conform to the percentages by weight as shown in Table 1, determined in accordance with AMS2355.TABLE 1Element min maxSilicon - 0.50Iron - 0.50Copper 3.8 4.9Manganese 0.30 0.9Magnesium 1.2 1.8Chromium - 0.10Zinc - 0.25Titanium - 0.15Other Elements, each - 0.05Other Elements, total - 0
18、.15Aluminum remainder3.2 ConditionThe product shall be supplied in the following condition:3.2.1 SheetSolution heat treated in accordance with AMS2772, cold reduced approximately 6% and artificially aged (See AS1990).3.2.2 PlateSolution heat treated in accordance with AMS2772, cold reduced approxima
19、tely 6% and artificially aged (See AS1990).3.2.2.1 Plate shall receive no further straightening operations after cold reduction.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4271A Page 4 of
20、53.3 PropertiesThe product shall conform to the following requirements, determined in accordance with AMS2355 on the mill produced size.3.3.1 Tensile PropertiesShall be as shown in Table 2 (See 8.3).TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITSTemperNominal Thickness,InchesTensileStrength,
21、ksiYield Strengthat 0.2% Offset,ksiElongation in2 inches or 4D,%-T8610.020 to 0.062, inclOver 0.062 to 0.249, inclOver 0.249 to 0.500 70.071.070.062.066.064.0344TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITSTemperNominal Thickness,MillimetersTensileStrength,MPaYield Strengthat 0.2% Offset,MPaElonga
22、tion in50.8 mm or 4D,%-T8610.508 to 1.57, inclOver 1.57 to 6.32, inclOver 6.32 to 12.704834904834274554413443.4 QualityThe product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to usage of the product3.
23、5 TolerancesShall conform to all applicable requirements of ANSI H35.2/H35.2M.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe vendor of the product shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves th
24、e right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to specified requirements.4.2 Classification of Tests4.2.1 Acceptance TestsComposition (3.1), tensile properties (3.3.1), and tolerances (3.5) are acceptance tests and except for compositio
25、n, shall be performed on each lot.4.3 Sampling and TestingShall be in accordance with AMS2355.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4271A Page 5 of 54.4 ReportsThe vendor of the prod
26、uct shall furnish with each shipment a report stating that the product conforms to the composition and tolerances, and showing numerical results of tests for the other acceptance test requirements. This report shall include the purchase order number, lot number, AMS4271A, size, and quantity. The rep
27、ort shall also identify the producer, the product form, and the size of the mill product.4.5 Resampling and RetestingShall be in accordance with AMS2355.5. PREPARATION FOR DELIVERY5.1 IdentificationShall be in accordance with ASTM B 666/B 666M.5.2 Packaging5.2.1 Product shall be protected from damag
28、e during storage and shipment by a method determined by the vendor unless specified by purchaser. Examples of typical protective methods include but are not limited to interleaving with paper or oiling of the surface.5.2.2 The product shall be prepared for shipment in accordance with ASTM B 660 and
29、in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the product to ensure carrier acceptance and safe delivery.6. ACKNOWLEDGMENTA vendor shall mention this specification number in all quotations and when acknowledging purchase orders.7. RE
30、JECTIONSProduct not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.8. NOTES8.1 A change bar (|) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been mad
31、e to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only.8.2 Terms used in AM
32、S are clarified in ARP1917.8.3 Dimensions and properties in inch/pound units and Fahrenheit temperatures are primary; dimensions and properties in SI units and Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information.8.4 The tensile pr
33、operties in Tables 2 were taken directly from QQ-A-250/4E Amendment 2 (AMS-QQ-A-250/4A) and have not been independently verified by AMS statistical procedures.8.5 Purchase documents should specify not less than the following:AMS4271AProduct form and size of product desiredQuantity of product desired.PREPARED BY AMS COMMITTEE “D“Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
