1、AEROSPACE MATERIAL SPECIFICATION AMS4404 REV. AIssued 2006-06 Revised 2008-12 Reaffirmed 2014-12 Superseding AMS4404 Aluminum Alloy, Extruded Profiles (6056-T4511)1.0Si 0.90Mg 0.80Cu 0.60Mn 0.40Zn Solution Heat Treated and Stress-Relieved by Stretching (Composition similar to UNS A96056) RATIONALE A
2、MS4404A has been reaffirmed to comply with the SAE five-year review policy. _ 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 suitabi
3、lity for any particular use, including any patent infringement arising therefrom, 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 suggesti
4、ons. Copyright 2014 SAE International All rights reserved. No part of this publication 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 D
5、OCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (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/AMS44
6、04A 1. SCOPE 1.1 Form This specification covers an aluminum alloy procured in the form of extruded profiles (shapes) with cross-sections up to 7.75 in2(5 000 mm2). 1.2 Application These extrusions have been used typically for structural applications requiring moderate tensile and good formability, b
7、ut usage is not limited to such applications. 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 subsequent revision of a document unless a specific doc
8、ument issue is specified. When the referenced document has been canceled 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 Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323
9、(inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS2355 Quality Assurance Sampling and Testing, Aluminum Alloys and Magnesium Alloys, Wrought Products, Except Forging Stock and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials AS1990 Alu
10、minum Alloy Tempers SAE INTERNATIONAL AMS4404A Page 2 of 5 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM B 666/B666
11、M Identification Marking of Aluminum and Magnesium Products ASTM G 110 Evaluating Intergranular Corrosion Resistance of Heat Treatable Aluminum Alloys by Immersion in Sodium Chloride + Hydrogen Peroxide Solution 2.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd
12、 Street, New York, NY 10036, Tel: 212-642-4900, 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 Table 1, det
13、ermined in accordance with AMS2355. TABLE 1 - COMPOSITION Element min maxSilicon 0.7 1.3 Iron - 0.5 Copper 0.50 1.1 Manganese 0.40 1.0 Magnesium 0.6 1.2 Chromium - 0.25Zinc 0.10 0.7 Zirconium + Titanium - 0.20Other Elements, each - 0.05Other Elements, total - 0.15Aluminum remainder 3.2 Condition Sol
14、ution heat treated, stress-relieved by stretching to produce a nominal permanent set of 1.5%, but not less than 1% nor more than 3%, and naturally aged to the -T4511 temper (See AS1990). 3.2.1 Product shall be supplied with an as-extruded surface finish; light polishing to remove minor surface condi
15、tions is permissible provided such conditions can be removed within specified dimensional tolerances. 3.2.2 Product may receive minor straightening, after stretching, of an amount necessary to meet the requirements of 3.5. 3.3 Heat Treatment Shall be performed in accordance with AMS2772 and as follo
16、ws: 3.3.1 Solution Heat Treatment 1012 to 1032 F (544 to 557 C). SAE INTERNATIONAL AMS4404A Page 3 of 5 3.4 Properties Extrusions shall conform to the following requirements, determined on the mill produced size in accordance with AMS2355. 3.4.1 As Solution Heat Treated and Naturally Aged Shall be a
17、s shown in Table 2. TABLE 2A - T4511 MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thickness Inches Specimen Orientation Tensile Strengthksi Yield Strength at 0.2% Offset ksi Elongation in 2 inches or 4D % Over 0.040 to 0.375, incl Longitudinal 51.0 36.0 15 TABLE 2B - T4511 MINIMUM TENSILE PR
18、OPERTIES, SI UNITS Nominal Thickness Millimeters Specimen Orientation Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % 1.00 to 9.5 mm, incl. Longitudinal 352 248 15 3.4.2 Response to Heat Treatment The product, as received by purchaser, shall have the properties s
19、hown in Table 3 after being aged in accordance with AMS2772 and as follows: T62: Age for 2 to 6 hours at 369 to 379 F (187 to 193 C). T72: Age for 4 to 8 hours at 362 to 372F (172 to 178C) followed by 11 to 15 hours at 369 to 379F (187 to 193 C) TABLE 3A - T62 AND T72 MINIMUM TENSILE PROPERTIES, INC
20、H/POUND UNITS Temper Nominal Thickness Inches Specimen Orientation Tensile Strengthksi Yield Strength at 0.2% Offset ksi Elongation in 2 inches or 4D % T62 Over 0.040 to 0.375, incl Longitudinal 57.0 54.0 10 T72 Over 0.040 to 0.375, incl Longitudinal 53.0 48.0 10 TABLE 3B - T62 AND T72 MINIMUM TENSI
21、LE PROPERTIES, SI UNITS Temper Nominal Thickness Millimeters Specimen Orientation Tensile StrengthMPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % T62 1.00 to 9.5 mm, incl Longitudinal 393 372 10 T72 1.00 to 9.5 mm, incl Longitudinal 365 331 10 3.4.3 Intergranular Corrosion, T72 t
22、emper No visible intergranular corrosion shall be present on the etched metallographic samples examined at X500 after being tested in accordance with ASTM G 110 with 6 hours exposure. Criteria for evaluation shall be as agreed upon between purchaser and vendor. 3.5 Quality Product, as received by pu
23、rchaser, shall be uniform in quality and condition, sound, and free from foreign materials and imperfections detrimental to usage of the extrusions. SAE INTERNATIONAL AMS4404A Page 4 of 5 3.6 Tolerances Shall conform to all applicable requirements of ANSI H35.2 or ANSI H35.2M. 4. QUALITY ASSURANCE P
24、ROVISIONS 4.1 Responsibility for Inspection The vendor of the product shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the prod
25、ucts conform to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties as solution heat treated and naturally aged (3.4.1), response to heat treatment (3.4.2) and tolerances (3.5) are acceptance tests and, except for composition, shall be per
26、formed on each inspection lot. 4.2.2 Periodic Tests Intergranular Corrosion Resistance (3.4.3) is a periodic test and shall be performed at a frequency selected by the vendor unless the frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355. 4.4
27、Reports The vendor of product shall furnish with each shipment a report stating that the product conforms to the composition 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
28、the purchase order number, inspection lot number(s), AMS4404A, size or section identification number, and quantity. The report shall also identify the producer, the product form, and the size of the mill product. 4.5 Resampling and Retesting Shall be in accordance with AMS2355. 5. PREPARATION FOR DE
29、LIVERY 5.1 Identification Shall be in accordance with ASTM B 666/B 666M. 5.2 Packaging Extrusions 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 product to ensure ca
30、rrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number in all quotations and when acknowledging purchase orders. SAE INTERNATIONAL AMS4404A Page 5 of 5 7. REJECTIONS Products not conforming to this specification, or to modifications authorized by purch
31、aser, will be subject to rejection. 8. NOTES 8.1 A change bar (l) 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 left of the document title i
32、ndicates 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 inch/pound units and Fahrenhe
33、it 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 Purchase documents should specify not less than the following: AMS4404A Form and size or section identification of extrusions desired Quantity of extrusions desired. PREPARED BY AMS COMMITTEE “D”
