SAE AMS 4122L-2012 Aluminum Alloy Bars Rods and Wire Rolled or Cold Finished and Rings 5 6Zn - 2 5Mg - 1 6Cu - 0 23Cr (7075-T6 7075-T651)Solution and Precipitation Heat Treated (UN.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 2012 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/AMS4122L AEROSPACE MATERIAL SPECIFICATION AMS4122 REV. L Issued 1945-10 Revised 2012-05 Super

5、seding AMS4122K Aluminum Alloy Bars, Rods, and Wire Rolled or Cold Finished, and Rings 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T6, 7075-T651) Solution and Precipitation Heat Treated (Composition similar to UNS A97075) RATIONALE AMS4122L adds coverage for T651 temper (Title, 3.2.1) to facilitate future

6、cancellation of AMS-QQ-A-225/9. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of rolled or cold finished bars, rods, and wire, and of flash welded rings. 1.2 Application These products have been used typically for parts requiring high strength where limited formability is

7、 acceptable. 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 effect on the date of the purchase order f

8、orms 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 published issue of th

9、at 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. AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Allo

10、y, Wrought Products (Except Forging Stock), and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials SAE AMS4122L Page 2 of 5 AMS4186 Aluminum Alloy Bars, Rods, and Wire, Rolled or Cold Finished, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-F), As Fabricated AMS7488 R

11、ings, Flash Welded, Aluminum and Aluminum Alloys 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 19428-2959

12、, 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 2.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036, Tel: 212

13、-642-4900, www.ansi.org. ANSI H35.2/H35.2M Dimensional Tolerances for Aluminum Mill Products 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 max Silicon - 0.40 Iron - 0.50

14、Copper 1.2 2.0 Manganese - 0.30 Magnesium 2.1 2.9 Chromium 0.18 0.28 Zinc 5.1 6.1 Titanium - 0.20 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder SAE AMS4122L Page 3 of 5 3.3 Condition The product shall be supplied in the following condition: 3.3.1 Bar and Rod Rolled or c

15、old finished, solution heat treated, stress-relieved by stretching to produce a nominal permanent set of 1-1/2%, but not less than 1% nor more than 3%, and overaged to the T651 temper (See AS1990). Heat treatments shall be performed in accordance with AMS2772. 3.3.1.1 When T6 is specified, the stres

16、s relief by stretching may be omitted and the T6 temper supplied. 3.3.2 Wire Rolled or cold finished, as ordered, and solution and precipitation heat treated to the T6 temper in accordance with AMS2772 (See AS1990). 3.3.3 Flash Welded Rings Shall be manufactured in accordance with AMS7488 and soluti

17、on and precipitation heat treated in accordance with AMS2772 from stock conforming to AMS4186, as ordered. 3.4 Properties Rods 4 inches (102 mm) and under in diameter; square, hexagonal, and octagonal bar 3-1/2 inches (89 mm) and under in thickness; rectangular bar 3 inches (76 mm) and under in thic

18、kness and 6 inches (152 mm) and under in width or 10 inches (254 mm) and under in width when thickness is less than 3 inches (76 mm); and flash welded rings within the above limits of radial thickness, as applicable to the stock used, shall conform to the requirements presented in Table 2, determine

19、d on the mill produced size in accordance with AMS2355. TABLE 2 - MINIMUM TENSILE PROPERTIES Property Value Tensile Strength 77.0 ksi (531 MPa) Yield Strength at 0.2% Offset 66.0 ksi (455 MPa) Elongation in 4D 7% 3.5 Quality The product, as received by purchaser, shall be uniform in quality and cond

20、ition, sound, and free from foreign materials and from imperfections detrimental to usage of the product. 3.6 Tolerances Bars, rods, and wire 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

21、 product shall supply all samples for vendors tests 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 product conforms to specified requirements. SAE AMS4122L Page 4 o

22、f 5 4.2 Classification of Tests 4.2.1 Acceptance Tests The following requirements are acceptance tests and except for composition, shall be performed on each lot: 4.2.1.1 Composition (3.1) of each heat. 4.2.1.2 Tensile properties (3.3) of each lot of bars, rods, wire, and flash welded rings. 4.2.1.3

23、 Tolerances (3.5) of bars, rods, and wire. 4.2.2 Periodic Tests Tests of stock for flash welded rings to determine ability to develop required properties (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 S

24、ampling and Testing Shall be in accordance with AMS2355. 4.4 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 determine conformance to

25、the other acceptance test requirements. This report shall include the purchase order number, inspection lot number(s), AMS4122L, 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 wi

26、th AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be identified as follows: 5.1.1 Bars, Rod, and Wire In accordance with ASTM B 666/B 666M. 5.1.2 Flash Welded Rings As agreed upon by purchaser and vendor. 5.2 Packaging 5.2.1 When specified, the product shall be oiled, prior to shipmen

27、t, with a light corrosion-inhibiting oil. The 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 transportation of the product to ensure carrier acceptance and safe delivery. SAE AMS4

28、122L Page 5 of 5 6. ACKNOWLEDGMENT A vendor shall note this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Product not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8.

29、 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 document title indicates a complete revision of the do

30、cument, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. 8.2 Product should have hardness of 135 HB/10/500 or 140 HB/10/1000, determined in accordance with ASTM E 10. Hardness has been used to verify that

31、product is properly processed, but an “out-of-range hardness number” is not always indicative of product with “out-of-specified tensile strength”. Further analysis, including material composition verification, heat treat process parameter review, and/or tensile property measurement on product with o

32、ut-of-range hardness, may be necessary. 8.3 Terms used in AMS are clarified in ARP1917. 8.4 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 pr

33、imary units and are presented only for information. 8.5 Purchase documents should specify not less than the following: AMS4122L Product form, size, or part number of product desired Quantity of product desired. 8.6 Similar Specifications AMS-QQ-A-225/9 Temper -T6, is listed for information only and shall not be construed as an acceptable alternate unless all requirements of this AMS are met. PREPARED BY AMS COMMITTEE “D”