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 2012 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/AMS4296B AEROSPACE MATERIAL SPECIFICATION AMS4296 REV. B Issued 1997-09 Revised 2
5、007-03 Reaffirmed 2012-02 Superseding AMS4296A Aluminum Alloy, Alclad Sheet and Plate 4.3Cu - 1.4Mg - 0.60Mn (Alclad 2524-T3) Solution Heat Treated and Cold Worked (Composition similar to UNS A82524)RATIONALE AMS4296B has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE 1.1 F
6、orm This specification covers an aluminum alloy in the form of sheet and plate clad on both sides. 1.2 Application These products have been used typically for formed structural aircraft parts requiring improved resistance to fatigue crack growth and high toughness with strength similar to Alclad 202
7、4-T3, but usage is not limited to such applications. 1.2.1 Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking; ARP823 recommends practices to minimize such conditions. 2. APPLICABLE DOCUMENTS The issue of the following documents in ef
8、fect on the date of the purchase order forms a part of this specification to the extent supplied 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 sp
9、ecified, 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 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS 2355 Quality Assurance Sampling and Test
10、ing, Aluminum Alloys and Magnesium Alloys, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded Rings AMS 2772 Heat Treatment of Aluminum Alloy Raw Materials Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted
11、 without license from IHS-,-,-SAE AMS4296B Page 2 of 5 ARP823 Minimizing Stress-Corrosion Cracking in Wrought Heat-Treatable Aluminum Alloy Products AS1990 Aluminum Alloy Tempers 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 1942
12、8-2959, Tel: 610-832-9585, 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 ASTM E 647 Measurement of Fatigue Crack Growth Rates 2.3 ANSI Publications Available from American National Standards I
13、nstitute, 25 West 43rd 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
14、 shown in Tables 1 and 2, determined in accordance with AMS 2355. TABLE 1 - COMPOSITION, CORE (2524) Element min maxSilicon - 0.06Iron - 0.12Copper 4.0 4.5 Manganese 0.45 0.7 Magnesium 1.2 1.6 Chromium - 0.05Zinc - 0.15Titanium - 0.10Other Elements, each - 0.05Other Elements, total - 0.15Aluminum re
15、mainder TABLE 2 - COMPOSITION, CLADDING (1230) Element min maxSilicon + Iron - 0.7 Copper - 0.10Manganese - 0.05Magnesium - 0.05Zinc - 0.10Titanium - 0.03Vanadium - 0.05Other Elements, each - 0.03Aluminum, by difference 99.3 - 3.2 Condition Solution heat treated in accordance with AMS 2772 and cold
16、worked to T3 temper (See AS1990). Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4296B Page 3 of 5 3.3 Properties Product shall conform to the following requirements, determined in accordance
17、 with AMS 2355 on the mill product: 3.3.1 Long-Transverse Tensile Properties Shall be as shown in Table 3. TABLE 3A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thickness Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 inches or 4D % 0.032 to 0.062, incl 59.0
18、39.0 15 Over 0.062 to 0.128, incl 61.0 40.0 15 Over 0.128 to 0.310, incl 62.0 40.0 15 TABLE 3B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Thickness Millimeters Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 inches or 4D % 0.81 to 1.57, incl 407 269 15 Over 1.57 to 3.25, i
19、ncl 421 276 15 Over 3.25 to 7.87, incl 427 276 15 3.3.2 Fatigue Crack Growth Rate (FCGR) Shall be not higher than the rate (da/dN) shown in Table 4, determined in the T-L orientation in accordance with ASTM E 647, and using the center-cracked tension M(T) specimen, a DK of 30 ksi inch (33 MPa m ), a
20、 K gradient of zero, a stress ratio (R) of plus 0.1, and a testing frequency between 2 to 10 Hertz. TABLE 4 - MAXIMUM FATIGUE CRACK GROWTH RATE Nominal Thickness Inch Nominal Thickness Millimeters da/dN inch/cycle da/dN mm/cycle 0.032 to 0.310, incl 0.81 to 7.87, incl 1.2 x 10-43.05 x 10-33.3.3 Bend
21、ing Product shall withstand, without cracking, bending at room temperature through an angle of 180 degrees around a diameter equal to the bend factor shown in Table 5 times the nominal thickness of the product with axis of bend parallel to the direction of rolling. TABLE 5 - BENDING PARAMETERS Nomin
22、al Thickness Inch Nominal Thickness Millimeters Bend Factor 0.032 to 0.040, incl 0.81 to 1.02, incl 4 Over 0.040 to 0.128, incl Over 1.02 to 3.25, incl 5 Over 0.128 to 0.249, incl Over 3.25 to 6.32, incl 8 Over 0.249 to 0.310, incl Over 6.32 to 7.87, incl 10 Copyright SAE International Provided by I
23、HS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4296B Page 4 of 5 3.3.4 Minimum Average Cladding Thickness Shall be as shown in Table 6. TABLE 6 - MINIMUM AVERAGE CLADDING THICKNESS Nominal Thickness Inch Nominal Thickness Millimeter
24、s Cladding Thickness Per Side % of Total Thickness 0.032 to 0.062, incl 0.81 to 1.57, incl 4.0 Over 0.062 to 0.310, incl Over 1.57 to 7.87, incl 2.0 3.4 Quality Product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections
25、 detrimental 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 product shall supply all samples for vendors tests and shall be responsible for the perf
26、ormance 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), fatigue-crac
27、k growth rate (3.3.2), and tolerances (3.5) are acceptance tests and, except for composition, shall be performed on each inspection lot. 4.2.2 Periodic Tests Bending (3.3.3) and cladding thickness (3.3.4) are periodic tests and shall be performed at a frequency selected by the vendor unless frequenc
28、y of testing is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS 2355. One chemical composition analysis shall be determined for each ingot casting drop and one fatigue crack growth test shall be performed on each inspection lot. 4.4 Reports The vendor of the product
29、shall furnish with each shipment a report stating that the product conforms to the composition and tolerances and showing the numerical results of tests for tensile properties and fatigue crack growth of each inspection lot and stating that the product conforms to the other technical requirements. T
30、his report shall include the purchase order number, inspection lot number, AMS 4296B, size, 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 AMS 2355. Copyright SAE International Pr
31、ovided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4296B Page 5 of 5 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with ASTM B 666/B 666M. 5.2 Packaging 5.2.1 Product shall be protected from damage dur
32、ing storage and shipment by a method determined by 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 Product shall be prepared for shipment in accordance with ASTM B 660 and in complianc
33、e with applicable rules and regulations pertaining to the handling, packaging, and transportation of the product to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchas
34、e orders. 7. REJECTIONS Product 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 left margin is for the convenience of the user in locating areas where technical revisions, not editorial chan
35、ges, 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. Change bars and (R) are not used in original publications, nor in specifications that contain editorial changes only. 8.2 Terms used in AM
36、S 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 Purc
37、hase documents should specify not less than the following: AMS 4296B Size of sheet or plate desired Quantity of sheet or plate 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-,-,-
