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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication m
3、ay 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: +1 724-776-4970 (outside U
4、SA) 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/AMS4048NAEROSPACEMATERIALSPECIFICATIONAMS4048 REV. N Issued 1951-10 Revised 2010-08Supersedin
5、g AMS4048M Aluminum Alloy Sheet and Plate, Alclad 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (Alclad 7075-O) Annealedor when specified, “As Fabricated” (Alclad 7075-F) (Composition similar to UNS A97075) RATIONALE AMS4048N updates the F temper requirement (3.2.2), restricts tensile properties to 1 inch, max (Ta
6、ble 5), and introduces a UT inspection requirement (3.4.1) to facilitate cancellation of AMS-QQ-A-250/13. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of sheet and plate, clad on two sides supplied in the annealed (O) condition. When specified, product shall be supplied
7、in the “as fabricated” (F) temper. 1.2 Application These products have been used typically for formed structural parts which will be subsequently heat treated, 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 issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue o
9、f 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, www.sae.org.AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Alloy, Wrought
10、Products (Except Forging Stock), and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials AS1990 Aluminum Alloy Tempers Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4048N Page 2 of 72.2 ASTM Publicati
11、ons 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 594 Ultrasonic Inspection of Aluminum-Alloy Products for Aerospace Applications ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM B
12、 666/B666M Identification of Aluminum and Magnesium Alloy Products 2.3 ANSI Publications Available 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 Products ANSI H 35.2M Dime
13、nsional Tolerances for Aluminum Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 Components Shall conform to the percentages by weight, shown in Table 1 and Table 2, determined in accordance with AMS2355: TABLE 1 - COMPOSITION, CORE (7075) Element min max Silicon - 0.40 Iron - 0.50 Copper 1.2 2.
14、0 Manganese - 0.30Magnesium 2.1 2.9 Chromium 0.18 0.28 Zinc 5.1 6.1 Titanium - 0.20Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder TABLE 2 - COMPOSITION CLADDING (7072) Element min max Silicon + Iron - 0.7 Copper - 0.10 Manganese - 0.10Magnesium 0.10Zinc 0.8 1.3 Other Ele
15、ments, each - 0.05 Other Elements, total - 0.15 Aluminum remainder Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4048N Page 3 of 73.2 Condition 3.2.1 Annealed in accordance with AMS2772. 3.2.2 When specified, material may be provided in the
16、“as fabricated” (F) temper. Requirements of 3.3.1 do not apply to the F temper. 3.3 Properties The product shall conform to the following requirements, determined in accordance with AMS2355 on the mill produced size. 3.3.1 As Annealed 3.3.1.1 Tensile Properties Shall be as shown in Table 3. TABLE 3A
17、 - TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thickness Inch Tensile Strength ksi, max Yield Strength at 0.2% Offset ksi, maximum Elongation in 2 in. or 4D %, minimum 0.008 to 0.014, incl 36.0 20.0 9 Over 0.014 to 0.062, incl 36.0 20.0 10 Over 0.062 to 0.187, incl 38.0 20.0 10 Over 0.187 to 0.499,
18、 incl 39.0 21.0 10 Over 0.499 to 1.000, incl 40.0 - 10 TABLE 3B - TENSILE PROPERTIES, SI UNITS Nominal Thickness MillimetersTensile Strength MPa, max Yield Strength at 0.2% Offset MPa, maximum Elongation in 50.8 mm or 4D %, minimum 0.20 to 0.36, incl 248 138 9 Over 0.36 to 1.57, incl 248 138 10 Over
19、 1.57 to 4.75, incl 262 138 10 Over 4.75 to 12.67, incl 269 145 10 Over 12.67 to 25.40, incl 276 - 10 3.3.1.2 Bending Product 0.008 to 0.499 inch (0.20 to 12.67 mm) in nominal thickness shall withstand, without cracking, bending at room temperature through an angle of 180 degrees around a diameter e
20、qual to the bend factor (shown in Table 4) times the nominal thickness of the product with axis of bend parallel to the direction of rolling. TABLE 4 - BENDING PARAMETERS Nominal Thickness Inch Nominal Thickness Millimeters Bend Factor 0.008 to 0.032, incl 0.20 to 0.81, incl 1 Over 0.032 to 0.062, i
21、ncl Over 0.81 to 1.57, incl 2 Over 0.062 to 0.125, incl Over 1.57 to 3.18, incl 3 Over 0.125 to 0.249, incl Over 3.18 to 6.32, incl 4 Over 0.249 to 0.499, incl Over 6.32 to 12.67, incl 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4048N Pa
22、ge 4 of 73.3.2 Response to Heat Treatment The product, as received by purchaser, shall have the following properties after solution and precipitation heat treatment in accordance with AMS2772 to -T62 temper (See AS1990). 3.3.2.1 Tensile Properties Shall be as shown in Table 5. TABLE 5A - MINIMUM TEN
23、SILE PROPERTIES, INCH/POUND UNITS Nominal Thickness Inch Tensile Strength ksi, min Yield Strength at 0.2% Offset ksi, minimum Elongation in 2 in. or 4D %, minimum 0.008 to 0.011, incl 68.0 58.0 5 Over 0.011 to 0.039, incl 71.0 61.0 8 Over 0.039 to 0.062, incl 72.0 62.0 9 Over 0.062 to 0.187, incl 74
24、.0 64.0 9 Over 0.187 to 0.249, incl 76.0 65.0 9 Over 0.249 to 0.499, incl 75.0 65.0 9 Over 0.499 to 1.000, incl 78.0 68.0 7 TABLE 5B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Thickness MillimetersTensile Strength MPa, min Yield Strength at 0.2% Offset MPa, minimum Elongation in 50.8 mm or 4D %,
25、 minimum 0.20 to 0.28, incl 469 400 5 Over 0.28 to 0.99, incl 490 421 8 Over 0.99 to 1.57, incl 496 427 9 Over 1.57 to 4.75, incl 510 441 9 Over 4.75 to 6.32, incl 524 448 9 Over 6.32 to 12.67, incl 517 448 9 Over 12.67 to 25.40, incl 538 469 7 3.3.2.2 Bending Product shall withstand, without cracki
26、ng, bending at room temperature through an angle of 180 degrees around a diameter equal to the bend factor (shown in Table 6) times the nominal thickness of the product with axis of bend parallel to the direction of rolling. TABLE 6 - BENDING PARAMETERS Nominal Thickness Inch Nominal Thickness Milli
27、metersBend Factor 0.008 to 0.020, incl 0.20 to 0.51 incl 6 Over 0.020 to 0.062, incl Over 0.51 to 1.57 incl 7 Over 0.062 to 0.091, incl Over 1.57 to 2.31 incl 8 Over 0.091 to 0.125, incl Over 2.31 to 3.18 incl 9 Over 0.125 to 0.249, incl Over 3.18 to 6.32 incl 10 Over 0.249 to 0.499, incl Over 6.32
28、to 12.67 incl 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4048N Page 5 of 73.3.3 Cladding Thickness After rolling, the average cladding thickness per side shall be as shown in Table 7. TABLE 7 - MINIMUM AVERAGE CLADDING THICKNESS Total
29、Thickness of Composite Product Inch Total Thickness of Composite Product MillimetersAverage Cladding Thickness Per Side % of Total Thickness min max 0.008 to 0.062, incl 0.20 to 1.57, incl 3.2 - Over 0.062 to 0.187, incl Over 1.57 to 4.75, incl 2.0 - Over 0.187 to 0.499, incl Over 4.75 to 12.67, inc
30、l 1.2 - Over 0.499 to 1.000, incl Over 12.67 to 25.40, incl 1.2 3.0 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. 3.4.1 When specified, each plate 0.500
31、to 1.000 inches (12.70 to 25.40 mm) shall be ultrasonically inspected in accordance with ASTM B 594 and shall meet the requirements of 3.4.1.1 (See 8.4). 3.4.1.1 Plates shall meet the requirement for ultrasonic class B for plate 0.500 to 1.000 inches (12.70 to 25.40 mm) in nominal thickness. 3.5 Tol
32、erances Shall conform to all applicable requirements of ANSI H 35.2 or ANSI H 35.2M. 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 performance of all required tests. Purchaser re
33、serves 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 as annealed (3.3.1.1) (not applicable to F temper) and after res
34、ponse to heat treatment to the T62 temper (3.3.2), and tolerances (3.5) and when specified by purchaser, the ultrasonic quality (3.4.1) are acceptance tests and except for composition, shall be performed on each inspection lot. 4.2.2 Periodic Tests Bending as annealed (3.3.1.2) and after response to
35、 heat treatment (3.3.2.2) and cladding thickness (3.3.3) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355. Provided by IHSNot for ResaleNo reproduction o
36、r networking permitted without license from IHS-,-,-SAE AMS4048N Page 6 of 74.4 Reports The vendor of the 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 determ
37、ine conformance to the technical requirements. This report shall include the purchase order number, inspection lot number, AMS4048N, size, and quantity. The report shall also identify the producer, the product form, the producer lot number, and the size of the mill product. 4.5 Resampling and Retest
38、ing Shall be in accordance with AMS2355. 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 during shipment and/or storage by a method determined by the vendor unless specified by the purchaser. Typ
39、ical examples of protective measures include, but are not limited to, interleaving with paper or oiling of the surfaces. 5.2.2 Product 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 transp
40、ortation of the sheet to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall include this specification number and its revision letter in a quotations and when acknowledging purchase orders. 7. REJECTIONS Product not conforming to this specification, or to modifications aut
41、horized by purchaser, 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
42、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 inch/pound un
43、its 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. Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
44、se from IHS-,-,-SAE AMS4048N Page 7 of 78.4 Purchase documents should specify not less than the following: AMS4048N Product form and size of the product required. Quantity of product required Requirements for ultrasonic inspection (See 3.4.1), if any. 8.5 Similar Specifications AMS-QQ-A-250/13, Tempers O and F, and ASTM B 209 are listed for information only and shall not be construed as acceptable alternates unless all requirements of this AMS are met. PREPARED BY AMS COMMITTEE “D” Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
