1、AEROSPACEMATERIAL SPECIFICATIONAMS4159 REV. EIssued 1974-12Reaffirmed 2008-05Revised 2015-01Superseding AMS4159DAluminum Alloy, Extrusions7.7Zn - 2.4Mg - 1.6Cu - 0.16Cr (7049-T76511)Solution Heat Treated, Stress Relieved, Straightened, and Overaged(Composition similar to A97049)RATIONALEAMS4159E rev
2、ises Properties (3.3.1), and Reports (4.4.1), and is a Five Year Review and update of this specification.1. SCOPE1.1 FormThis specification covers an aluminum alloy in the form of extruded bars, rods, wire, profiles, and tubing with a nominal diameter or least thickness (wall thickness of tubing) up
3、 to 5.000 inches, inclusive. (See 8.4).1.2 ApplicationThese extrusions have been used typically for structural applications requiring a combination of high strength, good exfoliation-corrosion resistance, and stress-corrosion resistance, but usage is not limited to such applications.2. APPLICABLE DO
4、CUMENTSThe 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 specific document issue is specified. When the referenced document has been
5、 canceled 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: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.or
6、g.AMS2355 Quality Assurance Sampling and Testing, Aluminum Alloys and Magnesium Alloys, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded RingsAMS2772 Heat Treatment of Aluminum Alloy Raw Materials AS1990 Aluminum Alloy Tempers_SAE Technical Standards Board Rules provide th
7、at: “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 therefrom, is the sole responsibility of the user.”SA
8、E 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 2015 SAE InternationalAll rights reserved. No part of this publication may be reproduced, stored in a retrieval
9、 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: 724-776-0790Email: CustomerServic
10、esae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS4159E SAE INTERNATIONAL AMS4159E Page 2 of 52.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700,
11、 West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM B 594 Ultrasonic Inspection of Aluminum-Alloy Wrought ProductsASTM B 660 Packaging/Packing of Aluminum and Magnesium ProductsASTM B 666/B 666M Identification Marking of Aluminum and Magnesium ProductsASTM G 34 Exfoliation Corros
12、ion Susceptibility in 2XXX and 7XXX Series Aluminum Alloys (EXCO Test)ASTM G 47 Determining Susceptibility to Stress Corrosion Cracking of 2XXX and 7XXX Aluminum Alloys2.3 ANSI PublicationsAvailable from American National Standards Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036, Tel:
13、212-642-4900, www.ansi.org.ANSI H35.2 Dimensional Tolerances for Aluminum Mill ProductsANSI H35.2M Dimensional Tolerances for Aluminum Mill Products (Metric)3. TECHNICAL REQUIREMENTS3.1 CompositionShall conform to the percentages by weight shown in Table 1, determined in accordance with AMS2355.TABL
14、E 1 CompositionElement min maxSilicon - 0.25Iron - 0.35Copper 1.2 1.9Manganese - 0.20Magnesium 2.0 2.9Chromium 0.10 0.22Zinc 7.2 8.2Titanium - 0.10Other elements, each - 0.05Other elements, total - 0.15Aluminum Remainder3.2 ConditionSolution heat treated, stress-relieved by stretching to produce a n
15、ominal permanent set of 1.5%, but not less than 1% nor more than 3%, and overaged to the T76511 temper (See AS1990). Solution and overaging heat treatments shall be performed in accordance with AMS2772.3.2.1 Extrusions may receive minor straightening, after stretching, of an amount necessary to meet
16、 the requirements of 3.5.3.2.2 Extrusions shall be supplied with an as-extruded surface finish; light polishing to remove minor surface imperfections is permissible provided such imperfections can be removed within specified dimensional tolerances.SAE INTERNATIONAL AMS4159E Page 3 of 53.3 Properties
17、Extrusions shall conform to the following requirements, determined on the mill product size in accordance with AMS2355:3.3.1 Mechanical property requirements for product outside of the range covered by 1.1 shall be agreed upon between purchaser and producer.3.3.2 Tensile PropertiesShall be as shown
18、in Table 2.TABLE 2A - Minimum Tensile Properties, Inch/Pound UnitsNominal Diameteror Least Thickness(Wall Thicknessof Tubing)InchesSpecimenOrientationTensileStrengthksiYield Strengthat 0.2% OffsetksiElongation in 2 inches or 4D%Up to 3.000, excl Longitudinal 78.0 70.0 7Long-Trans. 76.0 68.0 53.00 to
19、 5.000, incl Longitudinal 76.0 68.0 7Long-Trans. 74.0 68.0 5TABLE 2B - Minimum Tensile Properties, SI UnitsNominal Diameteror Least Thickness(Wall Thicknessof Tubing)MillimetersSpecimenOrientationTensileStrengthMPaYield Strengthat 0.2% OffsetMPaElongation in 50.8 mm or 4D%Up to 3.000, excl Longitudi
20、nal 538 483 7Long-Trans. 524 469 53.00 to 5.000, incl Longitudinal 524 469 7Long-Trans. 510 455 53.3.3 ConductivityShall be not lower than 38.0% IACS (International Annealed Copper Standard) (22.0 MS/m).3.3.3.1 If conductivity is below 38.0% IACS (22.0 MS/m), the extrusions are not acceptable.3.3.3.
21、2 Extrusions found to be unacceptable may be given additional overaging heat treatment and if, upon completion of such treatment, they develop conductivity/property relationships conforming to 3.3.1 and 3.3.2, they shall be acceptable.3.3.4 Exfoliation-Corrosion ResistanceSpecimens, cut from extrusi
22、ons, shall not exhibit exfoliation corrosion, at any plane, greater than that illustrated in Photo B, Figure 2, of ASTM G 34.3.3.5 Stress-Corrosion ResistanceSpecimens, cut from extrusions 0.750 inch (19.05 mm) and over in nominal diameter or least thickness, shall exhibit no evidence of stress-corr
23、osion cracking when stressed in the short-transverse (perpendicular to grain flow) direction to 20.0 ksi (138 MPa) when tested in accordance with ASTM G 47.SAE INTERNATIONAL AMS4159E Page 4 of 53.4 QualityExtrusions, as received by purchaser, shall be uniform in quality and condition, sound, and fre
24、e from foreign materials and from imperfections detrimental to usage of the extrusions.3.4.1 When specified, extrusions shall be subjected to ultrasonic inspection in accordance with ASTM B 594. Extrusions 0.500 to 1.499 inches (12.70 to 38.07 mm), inclusive, in nominal thickness, not exceeding 600
25、pounds (272 kg) per piece, or a 10-to-1 width-to-thickness ratio shall meet ultrasonic Class B. Extrusions 1.500 inches (38.10 mm) and over in nominal thickness, not exceeding 600 pounds (272 kg) per piece, or a 10-to-1 width-to-thickness ratio shall meet ultrasonic Class A.3.5 TolerancesShall confo
26、rm to all applicable requirements of ANSI H35.2 or ANSI H35.2M.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe vendor of extrusions shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sampl
27、e and to perform any confirmatory testing deemed necessary to ensure that the extrusions conform to specified requirements.4.2 Classification of Tests4.2.1 Acceptance TestsComposition (3.1), tensile properties (3.3.2), conductivity (3.3.3), ultrasonic inspection when specified (3.4.1), and tolerance
28、s (3.5) are acceptance tests and, except for composition, shall be performed on each inspection lot.4.2.2 Periodic TestsExfoliation-corrosion resistance (3.3.4) and stress-corrosion resistance (3.3.5) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of
29、 testing is specified by purchaser.4.3 Sampling and TestingShall be in accordance with AMS2355 and the following:4.3.1 For Tensile Properties and Electrical ConductivityFrom extrusions having a nominal weight under 1 pound per linear foot (1.5 kg/m), one tension-conductivity sample shall be selected
30、 from each inspection lot weighing 1000 pounds (455 kg) or less; from lots weighing more than 1000 pounds (455 kg), one additional sample shall be taken from each 1000 pounds (455 kg) or fraction thereof in excess of the first 1000 pounds (455 kg). From extrusions having a nominal weight of 1 pound
31、per linear foot (1.5 kg/m) or more, one tension-conductivity sample shall be taken from each inspection lot consisting of 1000 feet (305 m) or less; from inspection lots consisting over 1000 feet (305 m), one additional sample shall be taken for each 1000 feet (305 m) or fraction thereof in excess o
32、f the first 1000 feet (305 m). Only one tension-conductivity sample shall be taken from any one piece when more than one piece is available.4.4 ReportsThe vendor of extrusions shall furnish with each shipment a report stating that the extrusions conform to the chemical composition, ultrasonic inspec
33、tion when specified, and tolerances and 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, AMS4159E, size or section identification number, and q
34、uantity. The report shall also identify the producer, the product form, and the size of the mill product.SAE INTERNATIONAL AMS4159E Page 5 of 54.4.1 When the product size is outside the range covered by Table 2, the report shall contain a statement to that effect.4.5 Resampling and RetestingShall be
35、 in accordance with AMS2355.5. PREPARATION FOR DELIVERY5.1 IdentificationShall be in accordance with ASTM B 666/B 666M.5.2 PackagingExtrusions shall be prepared for shipment in accordance with ASTM B 660 and in compliance with applicable rules and regulations pertaining to the handling, packaging, a
36、nd transportation of the extrusions to ensure carrier acceptance and safe delivery.6. ACKNOWLEDGMENTA vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders.7. REJECTIONSExtrusions not conforming to this specification, or to mo
37、difications 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 made to the previous issue of this document. An (R) symbol to the
38、 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 AMS are clarified in ARP1917.8.3 Dimensions and properties in in
39、ch/pound units are primary; dimensions and properties in SI units 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:AMS4159EForm and size or section identification number of extrusions desiredQuantity of extrusions desiredProperty and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1.PREPARED BY AMS COMMITTEE “D”
