SAE AMS 4367-2016 Aluminum Alloy Extruded Profiles 8 9Zn - 2 2Cu - 2 2Mg - 0 15Zr (7136-T74511) Solution Heat Treated Stress Relieved by Stretching Straightened and Overaged.pdf

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1、_ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLV 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 therefrom, is

2、the sROHUHVSRQVLELOLWRIWKHXVHU 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 2016 SAE International All rights reserved. No part of this publication may b

3、e 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 USA)

4、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/AMS4367 AEROSPACE MATERIAL SPECIFICATION AMS4367 Issued 2016-09 Aluminum Alloy, Extruded Profiles

5、 8.9Zn - 2.2Cu - 2.2Mg - 0.15Zr (7136-T74511) Solution Heat Treated, Stress Relieved by Stretching, Straightened, and Overaged RATIONALE AMS4367 is a new specification for aluminum alloy 7136-T74511 extruded profiles. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of extru

6、ded rods, bars, and profiles (shapes) produced with maximum cross sectional area of 55.5 in2 (35 806 mm2) and a maximum circumscribing circle diameter (circle size) of 24.4 inches (620 mm) (see 8.4.1). 1.2 Application These extrusions have been used typically for structural aerospace applications re

7、quiring good strength and toughness combined with excellent corrosion resistance but are not limited to these applications. 1.2.1 Certain processing procedures may cause this product to become susceptible to stress-corrosion cracking. ARP823 recommends practices to minimize such conditions. 2. APPLI

8、CABLE DOCUMENTS 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

9、 has been cancelled 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 +1 724-776-4970 (outside U

10、SA), www.sae.org. AMS2355 Quality 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 ARP823 Minimizing Stress-Corrosion Cracking in Wrought Heat-

11、Treatable Aluminum Alloy Products ARP1917 Clarification of Terms Used in Aerospace Metals Specifications SAE INTERNATIONAL AMS4367 Page 2 of 7 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.

12、org. ASTM B594 Ultrasonic Inspection of Aluminum Alloy Wrought Products ASTM B660 Packaging of Aluminum and Magnesium Products ASTM B666/B666M Identification Marking of Aluminum and Magnesium Products ASTM E1004 Electromagnetic (Eddy Current) Measurements of Electrical Conductivity ASTM G34 Exfoliat

13、ion Corrosion Susceptibility in 2xxx and 7xxx Aluminum Alloys (EXCO Test) ASTM G47 Determining Susceptibility to Stress-Corrosion Cracking of 2xxx and 7xxx Aluminum Alloy Products 2.3 ANSI Publications Copies of these documents are available online at http:/webstore.ansi.org/. ANSI H35.1/H35.1M Allo

14、y and Temper Designation Systems for Aluminum ANSI H 35.2 Dimensional Tolerances for Aluminum Mill Products ANSI H 35.2M Dimensional Tolerances for Aluminum Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined in acc

15、ordance with AMS2355. Table 1 - Composition Element min max Silicon - 0.12 Iron - 0.15 Copper 1.9 2.5 Manganese - 0.05 Magnesium Chromium 1.8 - 2.5 0.05 Zinc 8.4 9.4 Titanium Zirconium - 0.10 0.10 0.20 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum Remainder SAE INTERNATIONAL AMS4

16、367 Page 3 of 7 3.2 Condition Extrusions shall be solution heat-treated, stress relieved by stretching after solution treatment to produce a nominal permanent set of 1.5%, but not less than 1% or more than 3%, and overaged to the -T74511 temper (see ANSI H35.1/H35.1M). 3.2.1 Extrusions in the -T7451

17、1 temper may receive minor straightening, after stretching, of an amount necessary to meet tolerance requirements of 3.6. 3.2.2 Extrusions shall be supplied with an as-extruded surface finish. Light polishing to remove minor surface imperfections is permissible provided such imperfections can be rem

18、oved within specified dimensional tolerances. 3.3 Heat Treatment Shall be performed in accordance with the requirements of AMS2772, except as follows: 3.3.1 Solution Heat Treatment Heat to 870 to 890 F (466 to 477 C), hold at heat for a time commensurate with product thickness and rapidly cool in a

19、suitable quenching medium. 3.3.2 Overaging Heat Treatment Overaging shall be performed at the specific time and temperatures necessary to meet the requirements of 3.4 (see 8.2). 3.4 Properties Product shall conform to the following requirements, determined on the mill produced size in accordance wit

20、h AMS2355. 3.4.1 Mechanical property requirements for products outside the range covered by 1.1 and Table 2 shall be agreed upon by the purchaser and producer. 3.4.2 Longitudinal and, when specified, long transverse tensile properties shall be as specified in Table 2. SAE INTERNATIONAL AMS4367 Page

21、4 of 7 Table 2A - Minimum tensile properties, inch/pound units Nominal Thickness Inches Specimen Orientation Tensile Strength ksi Yield Strength At 0.2% Offset ksi Elongation in 2 inches or 4D % 0.040 to 0.249, incl Longitudinal Long-Transverse 85.0 82.0 80.0 76.0 7 4 0.250 to 0.499, incl Longitudin

22、al Long-Transverse 85.0 82.0 80.0 75.0 7 4 0.500 to 0.999, incl Longitudinal Long-Transverse 85.0 81.0 80.0 75.0 7 4 1.000 to 1.499, incl Longitudinal Long-Transverse 85.0 81.0 80.0 74.0 7 4 1.500 to 1.999, incl Longitudinal Long-Transverse 85.0 80.0 80.0 74.0 7 4 2.000 to 2.999, incl Longitudinal L

23、ong-Transverse 85.0 79.0 80.0 72.0 7 4 3.000 to 3.999, incl Longitudinal Long-Transverse 85.0 77.0 80.0 71.0 7 4 4.000 to 4.500, incl Longitudinal Long-Transverse 85.0 77.0 80.0 70.0 7 4 Table 2B - Minimum tensile properties, SI units Nominal Thickness Millimeters Specimen Orientation Tensile Streng

24、th MPa Yield Strength At 0.2% Offset MPa Elongation in 50.8 mm or 5D % 1.02 to 6.32, incl Longitudinal Long-Transverse 586 565 552 524 7 4 6.35 to 12.67, incl Longitudinal Long-Transverse 586 565 552 517 7 4 12.70 to 25.37, incl Longitudinal Long-Transverse 586 558 552 517 6 3 25.40 to 38.07, incl L

25、ongitudinal Long-Transverse 586 558 552 510 6 3 38.10 to 50.77, incl Longitudinal Long-Transverse 586 552 552 510 6 3 50.80 to 76.17, incl Longitudinal Long-Transverse 586 545 552 496 6 3 76.20 to 101.57, incl Longitudinal Long-Transverse 586 531 552 490 6 3 101.60 to 114.30, incl Longitudinal Long-

26、Transverse 586 531 552 483 6 3 SAE INTERNATIONAL AMS4367 Page 5 of 7 3.4.3 Corrosion Resistance 3.4.3.1 Exfoliation Corrosion Resistance Specimens cut from extrusions shall not exhibit exfoliation corrosion at a T/10 plane greater than that illustrated by Photograph EB, Figure 2, of ASTM G34. 3.4.3.

27、2 Stress-Corrosion Cracking Specimens cut from extrusions 0.750 inches (19.04 mm) and over in diameter or thickness shall show no evidence of stress corrosion cracking when stressed in the short-transverse direction (perpendicular to grain flow) to 35.0 ksi (240 MPa) for a minimum 20 day exposure, a

28、s determined in accordance with ASTM G47. 3.4.4 Electrical Conductivity (EC) Shall be determined in accordance with ASTM E1004, on the surface of the test coupon prior to turning, but shall not be cause for rejection of the extrusions (see 8.3). 3.5 Quality Products, as received by purchaser, shall

29、be uniform in quality and condition, sound, and free from foreign materials and from conditions detrimental to usage of the extrusions. 3.5.1 When specified, each extrusion shall be subjected to ultrasonic inspection in accordance with ASTM B594. Extrusions with section thicknesses 0.500 to 1.499 in

30、ches shall meet ultrasonic Class B requirements, as described in ASTM B594. Extrusions with section thickness 1.500 and over shall meet ultrasonic Class A requirements, as described in ASTM B594. 3.6 Tolerances Shall conform to all applicable requirements of ANSI H35.2 or ANSI H35.2M. 4. QUALITY ASS

31、URANCE PROVISIONS 4.1 Responsibility for Inspection 7KHSURGXFHURIWKHSURGXFWVVKDOOVXSSODOOVDPSOHVIRUSURGXFHUVWH 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 pr

32、oducts conform to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), longitudinal and long transverse (when specified) tensile properties (3.4.2), ultrasonic inspection (when specified) (3.5.1), and tolerances (3.6) are acceptance tests and, except for comp

33、osition, shall be performed on each inspection lot. 4.2.2 Periodic Tests Exfoliation corrosion resistance (3.4.3.1) and stress-corrosion cracking resistance (3.4.3.2) are periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by the pur

34、chaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355. SAE INTERNATIONAL AMS4367 Page 6 of 7 4.4 Reports The producer of the product shall furnish with each shipment a report stating that the product conforms to the composition, ultrasonic inspection when specified, and tolerances and

35、 showing the numerical results of tests on each inspection lot for electrical conductivity, and to determine conformance to the other acceptance test requirements. This report shall include the purchase order number, inspection lot number, AMS4367, size or section identification number, and quantity

36、. This report shall also identify the producer, the product form, and the size of the mill product. 4.4.1 When the product size is outside the range covered by 1.1 and Table 2, the report shall contain a statement to that affect. 4.5 Resampling and Retesting Shall be in accordance with AMS2355. 5. P

37、REPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with ASTM B666/B666M. 5.2 Packaging Products shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the product

38、to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGEMENT A producer shall mention this specification number in all quotations and when acknowledging purchase orders. 7. REJECTIONS Products not conforming to this specification, or to modifications authorized by purchaser, will be subject to

39、 rejection. 8. NOTES 8.1 Revision Indicator 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 indica

40、tes 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 Extrusions produced to this specification exhibit a thin recrystallized surface layer similar to other high str

41、ength 2xxx alloys. Limits on the thickness of the recrystallized surface layer can be guaranteed for specific profiles if requested by purchaser. 8.3 Electrical conductivity should be not lower than 37.5% IACS (International Annealed Copper Standard) (21.8 MS/m). 8.4 Terms used in AMS are clarified

42、in ARP1917. 8.4.1 The circumscribing circle diameter is the diameter of the smallest circle which completely encloses the cross section of the as-extruded product. SAE INTERNATIONAL AMS4367 Page 7 of 7 8.5 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dim

43、ensions 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. 8.6 Purchase documents should specify not less than the following: AMS4367 Product form and size or section identification of extrusio

44、ns desired Quantity of extrusions desired Property and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1 Ultrasonic inspection standards of extrusions when specified Longitudinal transvers tensile testing when specified Compressive yield strength testing when specified. PREPARED BY AMS COMM,77(