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 2016 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:/standards.sae.org/AMS4174E AEROSPACE MATERIAL SPECIFICATION AMS4174 REV. E Issued 1976-01 Reaffirmed 2010-10 Revi
5、sed 2016-11Superseding AMS4174D Aluminum Alloy, Flash Welded Rings 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T73) Solution and Precipitation Heat Treated (Composition similar to UNS A97075) RATIONALE AMS4174E revises Condition (3.2), Properties (3.3.1.4) and Reports (4.4.2), and is a Five-Year Review and
6、 update of this specification. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of flash welded rings 0.062 to 4.499 inches, incl (1.57 to 114.27 mm incl) in radial thickness, with cross sectional areas up to 32 in2(206 cm2) (see 8.5). 1.2 Application These rings have been u
7、sed typically for parts requiring high strength and resistance to stress-corrosion cracking, but usage is not limited to such applications. 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 the extent specif
8、ied 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. 2.1 SAE Publications Availabl
9、e from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2355 Quality Assurance, Sampling and Testing Aluminum Alloys and Magnesium Alloy Wrought Products (Except Forging Stock), and Rolle
10、d, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials SAE INTERNATIONAL AMS4174E Page 2 of 6 AMS7488 Rings, Flash Welded Aluminum and Aluminum Alloys ARP1917 Clarification of Terms Used in Aerospace Metals Specifications 2.2 ASTM Publications Available from ASTM Int
11、ernational, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B660 Packaging/Packing of Aluminum and Magnesium Products 2.3 ANSI Accredited Publications Copies of these documents are available online at http:/webstore.ansi.org/. ANSI H35.1/
12、H35.1M Alloy and Temper Designation Systems for Aluminum 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 Copper Iron Manganese Magnesium Chromium Zinc Titaniu
13、m Other Elements, each Other Elements, total Aluminum - - 1.2 - 2.1 0.18 5.1 - - - remainder 0.40 0.50 2.0 0.30 2.9 0.28 6.1 0.20 0.05 0.15 3.2 Condition Rings shall be manufactured in accordance with AMS7488 and solution and precipitation heat treated to the T73 temper in accordance with AMS2772 (s
14、ee ANSI H35.1/H35.1M). 3.3 Properties Rings shall conform to the following requirements, determined on the mill produced size in accordance with AMS2355. 3.3.1 Tensile Properties Shall be as follows; longitudinal tensile properties apply to specimens taken in the circumferential direction. Long-tran
15、sverse and short-transverse properties apply to specimens taken in the greater and lesser, respectively, of the axial and radial directions. SAE INTERNATIONAL AMS4174E Page 3 of 6 3.3.1.1 Longitudinal Shall be as specified in Table 2. Table 2A - Minimum longitudinal tensile properties, inch/pound un
16、its Nominal Radial Thickness Inches Nominal Cross-Sectional Area Square Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 4D % 0.062 to 0.249, incl Up to 20, incl 68.0 58.0 7 Over 0.249 to 1.499, incl Up to 25, incl 70.0 61.0 8 Over 1.499 to 2.999, incl Up to 25, incl 69.0
17、59.0 8 Over 2.999 to 4.499, incl Up to 20, incl 68.0 57.0 7 Over 2.999 to 4.499, incl Over 20 to 32, incl 65.0 55.0 7 Table 2B - Minimum longitudinal tensile properties, SI units Nominal Radial Thickness Millimeters Nominal Cross-Sectional Area Square Centimeters Tensile Strength MPa Yield Strength
18、at 0.2% Offset MPa Elongation in 4D % 1.57 to 6.32, incl Up to 129, incl 469 400 7 Over 6.32 to 38.07, incl Up to 161, incl 483 421 8 Over 38.07 to 76.17, incl Up to 161, incl 476 407 8 Over 76.17 to 114.27, incl Up to 129, incl 469 393 7 Over 76.17 to 114.27, incl Over 129 to 206, incl 448 379 7 3.
19、3.1.2 Long-Transverse Shall be as specified in Table 3. Table 3A - Minimum long-transverse tensile properties, inch/pound units Nominal Radial Thickness Inches Nominal Cross-Sectional Area Square Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 4D % 0.062 to 0.249, incl Up
20、 to 20, incl 66.0 55.0 3 Over 0.249 to 0.499, incl Up to 20, incl 67.0 56.0 4 Over 0.499 to 0.749, incl Up to 25, incl 67.0 56.0 4 Over 0.749 to 1.499, incl Up to 25, incl 66.0 55.0 4 Over 1.499 to 2.999, incl Up to 25, incl 65.0 54.0 4 Over 2.999 to 4.499, incl Up to 20, incl 60.0 49.0 3 Over 2.999
21、 to 4.499, incl Over 20 to 32, incl 60.0 47.0 3 Table 3B - Minimum long-transverse tensile properties, SI units Nominal Radial Thickness Millimeters Nominal Cross-Sectional Area Square Centimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % 1.57 to 6.32, incl Up to 129,
22、 incl 455 379 3 Over 6.32 to 12.67, incl Up to 129, incl 462 386 4 Over 12.67 to 19.02, incl Up to 161, incl 462 386 4 Over 19.02 to 38.07, incl Up to 161, incl 455 379 4 Over 38.07 to 76.17, incl Up to 161, incl 448 372 4 Over 76.17 to 114.27, incl Up to 129, incl 414 338 3 Over 76.17 to 114.27, in
23、cl Over 129 to 206, incl 414 324 3 SAE INTERNATIONAL AMS4174E Page 4 of 6 3.3.1.3 Short-Transverse Shall be as specified in Table 4. Table 4A - Minimum short-transverse tensile properties, inch/pound units Nominal Radial Thickness Inches Nominal Cross-Sectional Area Square Inches Tensile Strength ks
24、i Yield Strength at 0.2% Offset ksi Elongation in 4D % 1.500 to 2.999, incl Up to 25, incl 60.0 48.0 2 Over 2.999 to 4.499, incl Up to 20, incl 57.0 44.0 2 Over 2.999 to 4.499, incl Over 20 to 32, incl 54.0 41.0 2 Table 4B - Minimum short-transverse tensile properties, SI units Nominal Radial Thickn
25、ess Millimeters Nominal Cross-Sectional Area Square Centimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % 38.10 to 76.17, incl Up to 161, incl 414 331 2 Over 76.17 to 114.27, incl Up to 129, incl 393 303 2 Over 76.17 to 114.27, incl Over 129 to 206, incl 372 283 2 3.3
26、.1.4 Mechanical property requirements for product outside of the range covered by 1.1 shall be agreed upon between purchaser and producer. 3.3.2 Conductivity Shall be as follows, determined on the surface of test specimens: 3.3.2.1 If the conductivity is 40.0% IACS (International Annealed Copper Sta
27、ndard) (23.2 MS/m) or higher and longitudinal tensile properties meet specified requirements, rings are acceptable. 3.3.2.2 If the conductivity is 38.0 to 39.9% IACS (22.0 to 23.1 MS/m), if the longitudinal tensile properties meet specified requirements, and if the longitudinal yield strength does n
28、ot exceed the specified minimum by more than 11.9 ksi (82 MPa), rings are acceptable. 3.3.2.3 If the conductivity is below 40.0% IACS and the longitudinal yield strength exceeds the specified minimum value by more than 11.9 ksi (82 MPa), rings shall be given additional precipitation heat treatment.
29、If after such treatment, rings meet the requirements of 3.3.1.1 and 3.3.2.1 or 3.3.2.2, rings are acceptable. 3.3.2.4 If the conductivity is below 38.0% IACS (22.0 MS/m), rings are not acceptable, but may be re-heat treated or given additional precipitation heat treatment to meet the requirements of
30、 3.3.1.1 and 3.3.2.1 or 3.3.2.2. 3.3.3 Stress-Corrosion Cracking Resistance Specimens, cut from a ring so that the axis of loading of the specimen is parallel to the short-transverse direction of the ring, shall show no evidence of stress-corrosion cracking when stressed to 75% of the specified mini
31、mum longitudinal yield strength. 3.4 Quality Rings, 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 rings. SAE INTERNATIONAL AMS4174E Page 5 of 6 4. QUALITY ASSURANCE PROVISIONS 4.1 Respons
32、ibility for Inspection The producer of rings shall supply all samples for producers 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 rings conform to specified
33、requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), longitudinal tensile properties (3.3.1.1), and conductivity (3.3.2) are acceptance tests and, except for composition, shall be performed on each lot. 4.2.2 Periodic Tests Transverse tensile properties (3.3.1.2 and 3.
34、3.1.3) and stress-corrosion resistance (3.3.3) are periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355. 4.4 Reports 4.4.1 The producer of rings shall furnish
35、with each shipment a report stating that the product conforms to the composition, tolerances, and nondestructive tests, and showing the numerical results of tests on each inspection lot to determine conformance to the other acceptance test requirements. This report shall include the purchase order n
36、umber, inspection lot number(s), AMS4174E, size, and quantity. The report shall also identify the producer, the product form, and the size of the mill product. 4.4.2 When the product size is outside the range covered by 1.1, the report shall contain a statement to that effect. 4.5 Resampling and Ret
37、esting Shall be in accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be as agreed upon by purchaser and producer. 5.2 Packaging Rings shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules and regulations pertaining to the hand
38、ling, packaging, and transportation of the rings to ensure carrier acceptance and safe delivery. SAE INTERNATIONAL AMS4174E Page 6 of 6 6. ACKNOWLEDGMENT A producer shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS
39、 Rings not conforming to this specification, or to modifications authorized by purchaser, will be subject to 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, h
40、ave 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 that contain editorial changes only. 8.2 Har
41、dness of Solution and Precipitation Heat Treated Rings: 8.2.1 Hardness should be 125 HB/10/500 or 130 HB/10/1000. Hardness has been used to verify that rings have been properly processed, but an out-of-range hardness number is not always indicative of rings with out-of-specification tensile strength
42、. 8.2.2 Further analysis including material composition verification, heat treat process parameter review, and/or tensile property measurement of rings with out-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 t
43、he 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. 8.5 Purchase documents should specify not less than the following: AMS4174E Size or part number of rings desired Quantity of rings desired Property and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1. PREPARED BY AMS COMMITTEE “D”
