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 ther
2、efrom, 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 2017 SAE International All rights reserved. No part of this
3、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 DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-49
4、70 (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:/standards.sae.org/AMS4269A AEROSPACE MATERIAL SPECIFICATION AMS4269 REV. A Issued 2011-12 Revised 2017-11 Supers
5、eding AMS4269 Aluminum Alloy, Sheet and Plate 4.4Cu - 1.5Mg - 0.60Mn; (2024-T361), Solution Heat Treated and Cold Worked (Composition similar to UNS A92024) RATIONALE AMS4269A revises Condition (3.2), Properties (3.3), Classification of Tests (4.2), Reports (4.4), and Identification (5.1.1), and is
6、a Five-Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of sheet and plate 0.020 to 0.500 inch (0.508 to 12.70 mm) inclusive, in thickness, supplied in the -T361 temper (see 8.5). 1.2 Application These products have been used typ
7、ically for structural parts requiring formability, a combination of good strength and good corrosion resistance and whose fabrication does not involve welding, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the pur
8、chase 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 cancelled and no superseding document has been specified, the last publishe
9、d 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 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys an
10、d Magnesium Alloy, Wrought Products (Except Forging Stock), and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials ARP1917 Clarification of Terms Used in Aerospace Metals Specifications SAE INTERNATIONAL AMS4269A Page 2 of 6 2.2 ANSI Publications Copies of t
11、hese documents are available online at http:/webstore.ansi.org/. ANSI H35.1/H35.1MStandard Alloy and Temper Designation System For Aluminum ANSI H35.2 Dimensional Tolerances for Aluminum Mill Products ANSI H35.2M Dimensional Tolerances for Aluminum Mill Products (Metric) 2.3 ASTM Publications Availa
12、ble from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B594 Ultrasonic Inspection of Aluminum-Alloy Products for Aerospace Applications ASTM B660 Packaging/Packing of Aluminum and Magnesium Products ASTM B666/B666M I
13、dentification Marking of Aluminum and Magnesium Alloy Products 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight as shown in Table 1, determined in accordance with AMS2355. Table 1 Element Min Max Silicon - 0.50 Iron - 0.50 Copper 3.8 4.9 Manganese 0.30 0.9 Magnesi
14、um 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 The product shall be supplied in the following condition: 3.2.1 Sheet Solution heat treated, cold reduced approximately 6%, and naturally aged to the T361
15、temper in accordance with AMS2772 (refer to ANSI H35.1/H35.1M). 3.2.2 Plate Solution heat treated, cold reduced approximately 6%, and naturally aged to the T361 temper in accordance with AMS2772 (refer to ANSI H35.1/H35.1MS1990). 3.2.2.1 Plate shall receive no further straightening operations after
16、cold reduction. SAE INTERNATIONAL AMS4269A Page 3 of 6 3.3 Properties The product shall conform to the following requirements, determined in accordance with AMS2355 on the mill produced size. 3.3.1 Tensile Properties (-T361) Shall be as shown in Table 2 (see 8.4). Table 2 Table 2A - Minimum tensile
17、properties, inch/pound units Temper Nominal Thickness, Inch Tensile Strength, ksi Yield Strength at 0.2% Offset, ksi Elongation in 2 inches or 4D, % -T361 0.020 to 0.062, incl Over 0.062 to 0.249, incl Over 0.249 to 0.499, incl 0.500 67.0 68.0 66.0 66.0 50.0 51.0 49.0 49.0 8 9 9 10 Table 2B - Minimu
18、m tensile properties, SI units Temper Nominal Thickness, Millimeters Tensile Strength, MPa Yield Strength at 0.2% Offset, MPa Elongation in 50.8 mm or 4D, % -T361 0.508 to 1.57, incl Over 1.57 to 6.32, incl Over 6.32 to 12.67, incl 12.70 462 469 455 455 345 352 338 338 8 9 9 10 3.3.2 Bend Test (-T36
19、1) 3.3.2.1 Product 0.020 to 0.249 inch (0.508 to 6.32 mm), inclusive, in nominal thickness shall withstand, without cracking, bending at room temperature through an angle of 180 around a diameter equal to the bend factor shown in Table 3 times the nominal thickness of the product with axis of bend p
20、arallel to the direction of rolling. Table 3 - Bend test factor, “N” Thickness of Material, Inch Thickness of Material, Millimeters N 0.020 to 0.032, incl Over 0.032 to 0.051, incl Over 0.051 to 0.063, incl Over 0.063 to 0.128, incl Over 0.128 to 0.249 0.508 to 0.81, incl Over 0.813 to 1.30, incl Ov
21、er 1.30 to 1.60, incl Over 1.60 to 3.25, incl Over 3.25 to 6.32 4 4 8 8 8 3.3.2.2 Bending requirements for product over 0.249 inch (6.32 mm) in nominal thickness shall be as agreed upon by purchaser and producer 3.3.3 Response to Temper Conversion (-T861) When specified, product in the T361 temper,
22、after precipation heat treatment to the T861 temper (refer to ANSI H35.1/H35.1M) in accordance with AMS2772, shall have the properties shown in Table 4. SAE INTERNATIONAL AMS4269A Page 4 of 6 3.3.3.1 Tensile Properties (-T861) Shall be as shown in Table 4 (see 8.4). Table 4 Table 4A - Minimum tensil
23、e properties, inch/pound units Temper Nominal Thickness, Inch Tensile Strength, ksi Yield Strength at 0.2% Offset, ksi Elongation in 2 Inches or 4D, % -T861 0.020 to 0.062, incl Over 0.062 to 0.249, incl Over 0.249 to 0.500 70.0 71.0 70.0 62.0 66.0 64.0 3 4 4 Table 4B - Minimum tensile properties, S
24、I units Temper Nominal Thickness, Millimeters Tensile Strength, MPa Yield Strength at 0.2% Offset, MPa Elongation in 50.8 mm or 4D, % -T861 0.508 to 1.57, incl Over 1.57 to 6.32, incl Over 6.32 to 12.70 483 490 483 427 455 441 3 4 4 3.3.4 Mechanical property requirements for product outside of the r
25、ange covered by 1.1 shall be agreed upon between purchaser and producer. 3.4 Quality The 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 product. 3.5 Tolerances Shall conform to al
26、l applicable requirements of ANSI H35.2/H35.2M. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of the product shall supply all samples for producers tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to
27、 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), tolerances (3.5), and when specified, tensile properties for response to temper conversi
28、on (3.3.3) are acceptance tests and except for composition, shall be performed on each lot. 4.2.2 Periodic Tests Bend testing (3.3.2) are periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by purchaser. SAE INTERNATIONAL AMS4269A Pa
29、ge 5 of 6 4.3 Sampling and Testing Shall be in accordance with AMS2355. 4.4 Reports The producer of the product 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 requirem
30、ents. This report shall include the purchase order number, lot number, AMS4269A, size, and quantity. The report shall also identify the producer, the product form, and the size of the mill product. 4.4.1 When material produced to this specification is beyond the sizes allowed in the scope of tables,
31、 or other exceptions are taken to the technical requirements listed in Section 3 (see 5.1.1), the report shall contain a statement “This material is certified as AMS4269A(EXC) because of the following exceptions.” and the specific exceptions shall be listed. 4.5 Resampling and Retesting Shall be in
32、accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with ASTM B666/B666M. 5.1.1 When technical exceptions are taken (see 4.4.1), the material shall be marked with AMS4269(EXC). 5.2 Packaging 5.2.1 Product shall be protected from damage during storage and sh
33、ipment by a method determined by the producer 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 B660 and in compliance with ap
34、plicable rules and regulations pertaining to the handling, packaging, and transportation of the product to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A producer shall mention this specification number in all quotations and when acknowledging purchase orders. 7. REJECTIONS Product
35、 not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision Indicator A change bar (I) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have be
36、en made 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. SAE INTERNATI
37、ONAL AMS4269A Page 6 of 6 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 an
38、d are presented only for information. 8.4 The tensile properties in Tables 2 and 4 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: AMS4269A Product form and size of product desired Response to temper conversion for T861 (if required) (see 3.3.3) Property and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1 Quantity of product desired PREPARED BY AMS COMMITTEE “D“
