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 2011 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/AMS4316A AEROSPACE MATERIAL SPECIFICATION AMS4316 REV. A Issued 2005-07 Revised 2
5、011-11Superseding AMS4316 Aluminum Alloy, Alclad Sheet and Plate 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr 7075: (-T76 Sheet, -T7651 Plate) Solution and Precipitation Heat Treated (Composition similar to UNS R87075) RATIONALE AMS4316A corrects an error in Tables 3A and 3B. 1. SCOPE 1.1 Form This specification
6、covers an aluminum alloy in the form of Alclad sheet and plate. 1.2 Application This product has been used typically for applications requiring a high level of mechanical properties and good resistance to exfoliation corrosion, but usage is not limited to such applications. 1.2.1 Certain design and
7、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 effect on the date of the purchase order forms a part of this specification to t
8、he 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 published issue of that document shall apply. SAE AMS4316A
9、Page 2 of 7 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. AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Alloy, Wrought Pr
10、oducts (Except Forging Stock), and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials ARP823 Minimizing Stress-Corrosion Cracking in Wrought Heat-Treatable Aluminum Alloy Products AS1990 Aluminum Alloy Tempers 2.2 ASTM Publications Available from ASTM Intern
11、ational, 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 Wrought Products for Aerospace Applications ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM B 666/B 666M Identific
12、ation of Aluminum and Magnesium Alloy Products ASTM G 34 Exfoliation Corrosion Susceptibility in 2XXX and 7XXX Series Aluminum Alloys (EXCO Test) ASTM G 47 Determining Susceptibility to Stress-Corrosion Cracking of High Strength Aluminum Alloy Products 2.3 ANSI Publications Available from American N
13、ational Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, 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 t
14、he percentages by weight shown in Tables 1 and 2, determined in accordance with AMS2355. SAE AMS4316A Page 3 of 7 TABLE 1 - COMPOSITION, CORE (7075) Element min max Silicon - 0.40 Iron - 0.50Copper 1.2 2.0 Manganese - 0.30 Magnesium 2.1 2.9 Chromium 0.18 0.28Zinc 5.1 6.1 Titanium - 0.20 Other Elemen
15、ts, 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 Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder 3.2 Condition The product s
16、hall be supplied in the following condition; heat treatments shall be performed in accordance with AMS2772. 3.2.1 Sheet Solution and precipitation heat treated to the T76 temper (See AS1990). 3.2.2 Plate Solution heat treated, stress-relieved by stretching to produce a nominal permanent set of 2% bu
17、t not less than 1-1/2% nor more than 3%, and precipitation heat treated to the T7651 temper (See AS1990). 3.2.2.1 Plate shall receive no straightening operations after stretching. 3.3 Properties Shall conform to the following requirements, determined in accordance with AMS2355 on the mill produced s
18、ize (See 8.2): 3.3.1 Tensile Properties Shall be as specified in Table 3. Tensile properties shall be determined in the long-transverse direction and, when specified, in the longitudinal direction. SAE AMS4316A Page 4 of 7 TABLE 3A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Temper Nominal Thickn
19、ess Inch Tensile Strength ksi Yield Strength at 2% Offset ksi Elongation in 2 inches or 4D %, min T76 0.040 to 0.062, incl 67.0 56.0 8 Over 0.062 to 0.187, incl 68.0 57.0 8 Over 0.187 to 0.249, incl 70.0 59.0 8 T7651 Over 0.249 to 0.499, incl 69.0 58.0 8 Over 0.499 to 1.000, incl 71.0 60.0 6 TABLE 3
20、B - MINIMUM TENSILE PROPERTIES, SI UNITS Temper Nominal Thickness Inch Tensile Strength MPa Yield Strength at 2% Offset MPa Elongation in 2 inches or 4D % T76 1.02 to 1.57, incl 462 386 8 Over 1.57 to 4.75, incl 469 393 8 Over 4.75 to 6.32, incl 483 407 8 T7651 Over 6.32 to 12.67, incl 476 400 8 Ove
21、r 12.67 to 25.40, incl 490 414 6 3.3.2 Electrical Conductivity 3.3.2.1 If the conductivity is 38% IACS or higher, and the tensile properties meet the minimum limits specified herein, the material is acceptable. 3.3.2.2 If the conductivity is at least 36% IACS but less than 38% IACS, the material may
22、 be tested as specified in 3.3.3 and 3.3.4 and accepted if it passes these tests. As alternatives, the product may be given an additional precipitation heat treatment, or entirely reheat treated, and retested. 3.3.2.3 If the conductivity is lower than 36.0% IACS (22.0 MS/m), the product is not accep
23、table and may be given an additional precipitation heat treatment, or entirely reheat treated, and retested. 3.3.3 Exfoliation Resistance Plate shall not exhibit exfoliation corrosion at the T/10 plane greater than that illustrated by Photo B, Figure 2 of ASTM G 34. 3.3.4 Stress-Corrosion Test Speci
24、mens, cut from plate 0.750 inch (19.05 mm) and over in nominal thickness, shall show no evidence of stress-corrosion cracking when tested in accordance with ASTM G 47 and stressed in the short-transverse direction to 25.0 ksi (172 MPa). 3.3.5 Cladding Thickness After rolling, the average cladding th
25、ickness on each side shall be as shown in Table 4. SAE AMS4316A Page 5 of 7 TABLE 4 - CLADDING THICKNESS Total Thickness of Composite Product Inch (Millimeters) Average Cladding Thickness Each Side % Total Thickness, Minimum Average Cladding Thickness Each Side % Total Thickness, Nominal Up to 0.062
26、 (1.57 ) incl 3.2 4 Over 0.062 (1.57) to 0.187 (4.750) incl 2 2.5 Over 0.187 1.2 1.5 (3.3.5.1) 3.3.5.1 For plate 0.500 inch and over, the average cladding thickness per side shall have a maximum value of 3% of the plate thickness. 3.4 Quality Product, as received by purchaser, shall be uniform in qu
27、ality 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 inch (12.70 mm) to 1.000 inch (25.40 mm) in nominal thickness weighing less than 2000 pounds (907 kg), shall be ultrasonically inspected in
28、accordance with ASTM B 594 and shall meet ultrasonic Class B. 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 product shall supply all samples for vendors tests and shall be resp
29、onsible 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 product conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties (
30、3.3.1), electrical conductivity (3.3.2), quality (3.4), and tolerances (3.5) are acceptance tests and, except for composition, shall be performed on each lot. 4.2.2 Periodic Tests 4.2.2.1 Exfoliation resistance (3.3.3) and stress-corrosion resistance (3.3.4) are periodic tests and shall be performed
31、 at a frequency of at least one sample per month for each size range of plate produced during that month unless frequency of testing is specified by purchaser. 4.2.2.2 Cladding thickness (3.3.5) is a periodic test and shall be performed at a frequency selected by the vendor unless frequency of testi
32、ng is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355 and the following: SAE AMS4316A Page 6 of 7 4.3.1 Specimens for conductivity testing shall be the tensile specimens. 4.3.2 One or more samples shall be taken from each inspection lot for exfoliation-resistance
33、 testing and for stress-corrosion resistance testing, when the conductivity is between 36.0% and 38.0% IACS (See 3.3.2.2). 4.4 Reports The vendor of product shall furnish with each shipment a report stating that the product conforms to the chemical composition, tolerances, and ultrasonic testing whe
34、n specified, showing the numerical results of tests on each inspection lot to determine conformance to the other acceptance test requirements, and stating that the product conforms to the other specified requirements. This report shall include the purchase order number, inspection lot number(s), AMS
35、4316A, size, and quantity. The report shall also identify the producer, the mill product form, and the mill produced size. 4.5 Resampling and Retesting 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 Protective T
36、reatment Product shall be protected from damage during 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. 5.3 Packaging The product shall be prepa
37、red 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 carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number in all qu
38、otations and when acknowledging purchase orders. 7. REJECTIONS Sheet not conforming to this specification, or to modifications authorized 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 te
39、chnical revisions, not editorial changes, have been 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 t
40、hat contain editorial changes only. 8.2 These mechanical properties have been taken from QQ-A-250/25 and have not been substantiated by AMS statistical procedures. 8.3 Terms used in AMS are clarified in ARP1917. SAE AMS4316A Page 7 of 7 8.4 Dimensions and properties in inch/pound units and the Fahre
41、nheit 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. 8.5 Purchase documents should specify not less than the following: AMS4316A Ultrasonic Testing when desired (See 3.4.1) Size of product desired Quantity of product desired. PREPARED BY AMS COMMITTEE “D“
