SAE AMS 4078J-2011 Aluminum Alloy Sheet and Plate 5 6Zn C 2 5Mg-1 6Cu-0 23Cr 7075 (-T73 Sheet -T7351 Plate) Solution Heat Treated and Overaged (UNS A97075)《经溶液热处理的含有5 6Zn 2 5Mg 1 6.pdf

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 2011 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/AMS4078J AEROSPACE MATERIAL SPECIFICATION AMS4078 REV. J Issued 1967-04 Revised 2011-10Supers

5、eding AMS4078H Aluminum Alloy Sheet and Plate 5.6Zn 2.5Mg-1.6Cu-0.23Cr 7075: (-T73 Sheet, -T7351 Plate) Solution Heat Treated and Overaged (Composition similar to UNS A97075) RATIONALE AMS4078J adds tensile strength values for sheet to Table 2 and corrects the metric equivalent for conductivity in 3

6、.3.2.1. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of sheet and plate. 1.2 Application This product has been used typically for parts requiring high strength and resistance to stress-corrosion cracking, but usage is not limited to such applications. 2. APPLICABLE DOCUM

7、ENTS 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 document issue is specified. When the referenced document has been c

8、ancelled 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 (inside USA and Canada) or 724-776-4970, www.sae.org. AMS2355 Qu

9、ality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Alloy, Wrought Products (Except Forging Stock), and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials AS1990 Aluminum Alloy Tempers SAE AMS4078J Page 2 of 5 2.2 ASTM Publications Available

10、 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 Wrought Products for Aerospace Applications ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM B 666

11、/B 666M Identification Marking of Aluminum Products 2.3 ANSI Publications Available from American National Standards Institute, 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 fo

12、r Aluminum Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined in accordance with AMS2355. TABLE 1 - COMPOSITION Element min maxSilicon - 0.40Iron - 0.50Copper 1.2 2.0 Manganese - 0.30Magnesium 2.1 2.9 Chromium 0.18

13、 0.28Zinc 5.1 6.1 Titanium - 0.20Other Elements, each - 0.05Other Elements, total - 0.15Aluminum remainder 3.2 Condition 3.2.1 Sheet - Solution heat treated, and precipitation heat treated to T73 temper (See AS1990). Heat treatment shall be performed in accordance with AMS2772. 3.2.2 Plate - Solutio

14、n heat treated, stretched to produce a nominal permanent set of 2%, but not less than 1-1/2% nor more than 3%, and precipitation heat treated to T7351 temper (See AS1990). Heat treatment shall be performed in accordance with AMS2772. 3.2.2.1 Plate shall receive no straightening operations after stre

15、tching. SAE AMS4078J Page 3 of 5 3.3 Properties Sheet and plate shall conform to the following requirements, determined in accordance with AMS2355 on the mill produced size: 3.3.1 Tensile Properties Shall be as specified in Table 2. TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thi

16、ckness Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 Inches or 4D % Over 0.039 to 0.249, incl 67.0 56.0 8 Over 0.250 to 1.000, incl 69.0 57.0 7 Over 1.000 to 2.000, incl 69.0 57.0 6 Over 2.000 to 2.500, incl 66.0 52.0 6 Over 2.500 to 3.000, incl 64.0 49.0 6 Over 3.000

17、 to 3.500, incl 63.0 49.0 6 Over 3.500 to 4.000, incl 61.0 48.0 6 TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Thickness Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % Over 0.991 to 6.32, incl 462 386 8 Over 6.35 to 25.40, incl 476 393 7 O

18、ver 25.40 to 50.80, incl 476 393 6 Over 50.80 to 63.50, incl 455 359 6 Over 63.50 to 76.20, incl 441 338 6 Over 76.20 to 88.90, incl 434 338 6 Over 88.90 to 101.60, incl 421 331 6 3.3.2 Corrosion Resistance Resistance to stress corrosion cracking and to exfoliation-corrosion shall be acceptable if t

19、he product conforms to 3.3.2.1 or 3.3.2.2. 3.3.2.1 If electrical conductivity is not lower than 40.0% IACS (International Annealed Copper Standard) (23.2 MS/m), determined on the surface of specimens used for tensile testing. 3.3.2.2 If electrical conductivity is 38.0 to 39.9% (22.0 to 23.1 MS/m) in

20、clusive, and yield strength does not exceed the specified minimum by more than 11.9 ksi (82 MPa). 3.3.2.3 If the requirements of 3.3.2.1 or 3.3.2.2 are not met, the product may be given additional precipitation heat treatment or re-heat treated. If, after such treatment, all specified properties are

21、 met, the product is acceptable. 3.3.2.4 If the conductivity is below 38.0% IACS (22.0 MS/m), the product is not acceptable and must be reprocessed, regardless of tensile properties. SAE AMS4078J Page 4 of 5 3.3.3 Stress-Corrosion Resistance Specimens cut from plate 0.750 inches (19.05 mm) and over

22、in nominal thickness shall show no evidence of stress-corrosion cracking when stressed in the short-transverse direction to 75% of the applicable minimum yield strength specified in 3.3.1. 3.4 Quality Sheet and plate, as received by purchaser, shall be uniform in quality and condition, sound, and fr

23、ee from foreign materials and from imperfections detrimental to usage of the plate. 3.4.1 When specified, each plate 0.500 inch (12.70 mm) and over in nominal thickness shall be ultrasonically inspected in accordance with ASTM B 594 and shall meet the requirements of 3.4.1.1 as applicable. 3.4.1.1 P

24、lates weighing 2000 pounds (907 kg) and under shall meet the requirements for ultrasonic class shown in Table 3. TABLE 3 - ULTRASONIC CLASS Nominal Thickness Inches Nominal Thickness Millimeters Ultrasonic Class Over 0.500 to 1.500, excl Over 12.70 to 38.10, excl B Over 1.500 to 3.000, incl Over 38.

25、10 to 76.20, incl A Over 3.000 to 4.000, incl Over 76.20 to 101.60, incl 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 sheet and plate shall supply all samples for vendors te

26、sts 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 plate conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), t

27、ensile properties (3.3.1), conductivity (3.3.2), tolerances (3.5), and, when specified, ultrasonic soundness (3.4.1) are acceptance tests and, except for composition, shall be performed on each lot. 4.2.2 Periodic Tests Stress-corrosion resistance (3.3.3) is a periodic test and shall be performed at

28、 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. SAE AMS4078J Page 5 of 5 4.4 Reports The vendor of product shall furnish with each shipment a report stating that the product conforms to the compo

29、sition, tolerances and ultrasonic inspection, when required, and showing numerical results of tests for the other acceptance test requirements and periodic test requirements when performed. This report shall include the purchase order number, inspection lot number(s), AMS4078J, size, and quantity. T

30、he 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 DELIVERY 5.1 Identification Shall be in accordance with ASTM B 666/B 666M. 5.2 Packaging Sheet and plate shall be prepa

31、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 plate to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its rev

32、ision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Sheet and plate 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

33、 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 indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original

34、publications, nor in documents that contain editorial changes only. 8.2 Some of the MMPDS “A” values for tensile and yield strengths are either higher or lower than specification values. 8.3 Terms used in AMS are clarified in ARP1917. 8.4 Dimensions and properties in inch/pound units and Fahrenheit

35、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. 8.5 Purchase documents should specify not less than the following: AMS4078J Size of sheet or plate desired Quantity of sheet or plate desired Ultrasonic soundness, if required (See 3.4.1). PREPARED BY AMS COMMITTEE “D”