1、_ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSX EOLVKHGE6$(WRDGYDQFHWKHVWDWHRIWHFKQLFDODQGHQJL neering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any SDUWLFXODUXVHLQFOXGLQJDQSDWHQWLQIULQJHPHQWDULVLQJWKHUHIURPLVWKH VROHUHVSRQVLELOLWRIW
2、KHXVHU 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 2017 SAE International All rights reserved. No part of this publication may be reproduced, stored in
3、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) Fax: 724-776-0790 Email:
4、 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/AMS4676F AEROSPACE MATERIAL SPECIFICATION AMS4676 REV. F Issued 1964-01 Reaffirmed 2008-05 Revised 2017-01 Superseding AMS4676E Nickel-
5、Copper Alloy, Corrosion-Resistant, Bars and Forgings 66.5Ni - 3.0Al - 0.62Ti - 28Cu Hot-Finished, Precipitation Hardenable (Composition similar to UNS N05500) RATIONALE AMS4676F revises Composition (3.1), Condition (3.2.2), and Reports (4.4), and is a Five-Year Review and update of this specificatio
6、n. 1. SCOPE 1.1 Form This specification covers a corrosion-resistant nickel-copper alloy in the form of bars, forgings, and forging stock. 1.2 Application These products have been used typically for parts requiring a combination of moderate strength, resistance to corrosion, and low magnetic permeab
7、ility, 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 specified herein. The supplier may work to a subsequent revision of a document unless a spec
8、ific 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 Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-
9、606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2261 Tolerances Nickel, Nickel Alloy, and Cobalt Alloy Bars, Rods, and Wire AMS2269 Chemical Check Analysis Limits Nickel, Nickel Alloys, and Cobalt Alloys AMS2371 Quality Assurance Sampling and Testing Corrosion and
10、Heat-Resistant Steels and Alloys Wrought Products and Forging Stock SAE INTERNATIONAL AMS4676F Page 2 of 6 AMS2374 Quality Assurance Sampling and Testing Corrosion and Heat-Resistant Steel and Alloy Forgings AMS2806 Identification Bars, Wire, Mechanical Tubing, and Extrusions Carbon and Alloy Steels
11、 and Corrosion and Heat-Resistant Steels and Alloys AMS2808 Identification Forgings ARP1917 Clarification of Terms Used in Aerospace Metals Specifications 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-958
12、5, www.astm.org. ASTM E8/E8M Tension Testing of Metallic Materials ASTM E10 Brinell Hardness of Metallic Materials ASTM E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness Rock
13、well Hardness ASTM E1473 Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E1473, by spectrochemical methods, or by other a
14、nalytical methods acceptable to purchaser. Table 1 Composition Element Min Max Carbon - 0.25 Manganese - 1.50 Silicon - 1.00 Phosphorus (3.1.1) - 0.02 Sulfur - 0.010 Copper 27.00 33.00 Aluminum 2.00 4.00 Titanium 0.25 1.00 Iron - 2.00 Zinc (3.1.1) - 0.02 Tin (3.1.1) - 0.006 Lead (3.1.1) - 0.006 Nick
15、el remainder 3.1.1 Determination not required for routine acceptance. 3.1.2 Check Analysis Composition variations shall meet the applicable requirements of AMS2269. 3.2 Condition The product shall be supplied in the following condition: SAE INTERNATIONAL AMS4676F Page 3 of 6 3.2.1 Bars and Forgings
16、Hot finished. 3.2.1.1 Surface finish of bars shall be as ordered. 3.2.2 Bars shall not be cut from plate (also see 4.4.1). 3.2.3 Forging Stock As ordered by the forging manufacturer. 3.3 Properties The product shall conform to the following requirements: 3.3.1 Bars and Forgings 3.3.1.1 As Hot-Finish
17、ed 3.3.1.1.1 Hardness Shall be not higher than 248 HB, or equivalent (see 8.2), determined in accordance with ASTM E10. 3.3.1.2 After Precipitation Heat Treatment The product shall conform to the following requirements after being precipitation heat treated by heating to 1100 to 1125 F (593 to 607 C
18、), holding at heat for 8 to 16 hours, and furnace cooling at a rate of 15 to 25 F (8 to 14 C) per hour to 900 F (482 C). Cooling from 900 F (482 C) may be accomplished without regard to cooling rate. As an alternate method, the precipitation heat treatment may be done by heating to 1100 F (607 C), h
19、olding at heat up to 16 hours, and furnace cooling in steps of 100 F (56 C) to 1000 F (538 C), holding at heat for approximately 6 hours, furnace cooling to 900 F (482 C), holding at heat for approximately 8 hours, and cooling to room temperature at a rate equivalent to air cooling. 3.3.1.2.1 Tensil
20、e Properties Shall be as shown in Table 2, determined in accordance with ASTM E8/E8M. Table 2 - Minimum tensile properties Property Value Tensile Strength 140 ksi (965 MPa) Yield Strength at 0.2% Offset 100 ksi (689 MPa) Elongation in 4D 20% (3.3.1.2.1.1) 3.3.1.2.1.1 Round bars over 4.25 inches (108
21、 mm) in diameter and over 12 feet (3.7 m) in length may have elongation as low as 17%. 3.3.1.2.2 Hardness Shall be not lower than 262 HB, or equivalent (see 8.2), determined in accordance with ASTM E10. Product shall not be rejected on the basis of hardness if the tensile property requirements are a
22、cceptable, determined on specimens taken from the same sample as that with nonconforming hardness or from another sample with similar nonconforming hardness. SAE INTERNATIONAL AMS4676F Page 4 of 6 3.3.2 Forging Stock When a sample of stock is forged to a test coupon, and heat treated as in 3.3.1.2,
23、specimens taken from the heat-treated coupon shall conform to the requirements of 3.3.1.2.1 and 3.3.1.2.2. If specimens taken from the stock and heat treated as in 3.3.1.2 conform to the requirements of 3.3.1.2.1 and 3.3.1.2.2, the tests shall be accepted as equivalent to tests of a forged coupon. 3
24、.4 Quality The product, 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 product. 3.4.1 Grain flow of die forgings, except in areas which contain flash-line end grain, shall follow the gener
25、al contour of the forgings showing no evidence of reentrant grain flow. 3.5 Tolerances 3.5.1 Bars Shall conform to all applicable requirements of AMS2261. 3.5.2 Forging Stock Shall be as agreed upon by purchaser and producer. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection 7KHSURGX
26、FHURIWKHSURGXFWVKDOOVXSSODOOVDPSOHVIRUSURGXFHUVWHVWVDQGVKDOOEH UHVSRQVLEOHIRUWKHSHUIRUPDQFHRIDOO 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
27、4.2.1 Acceptance Tests The following requirements are acceptance tests and shall be performed on each heat or lot as applicable: 4.2.1.1 Composition (3.1) of each heat. 4.2.1.2 Hardness (3.3.1.1.1) of each lot of bars and forgings as hot finished. 4.2.1.3 Tensile properties (3.3.1.2.1) and hardness
28、(3.3.1.2.2) of each lot of bars and forgings after precipitation heat treatment. 4.2.1.4 Tolerances (3.5) of bars. 4.2.2 Periodic Tests Tests of forging stock (3.3.2) to demonstrate ability to develop required properties and of grain flow of die forgings (3.4.1) are periodic tests and shall be perfo
29、rmed at a frequency selected by the producer unless frequency of testing is specified by purchaser. SAE INTERNATIONAL AMS4676F Page 5 of 6 4.3 Sampling and Testing Shall be as follows: 4.3.1 Bars and Forging Stock In accordance with AMS2371. 4.3.2 Forgings In accordance with AMS2374. 4.4 Reports 7KH
30、SURGXFHURIWKHSURGXFWVKDOOIXUQLVKZLWKHDFKVKLSPHQWDUHSRUWVKRZLQJWKHWKHSURGXFHUVQDPHDQGFRXQWUZKHUHthe metal was melted (e.g., final melt in the case of metal processed by multiple melting operations) and the composition of each heat, and the as hot-finished hardness, and the tensile properties and hard
31、ness after precipitation heat treatment of each lot, and stating that the product conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS4676F, size, and quantity. If forgings are supplied, the size and melt source of stock used to
32、 make the forgings shall also be included. 4.4.1 Report the nominal metallurgically worked cross sectional size and the cut size, if different (also see 3.2.2). 4.4.2 7KHSURGXFHURIIRUJLQJVWRFNVKDOOIXUQLVKZLWKHDFKVKLSPHQWDUHSRUWVKRZLQJWKHSURGXFHUV QDPHDQGFRXQWUwhere the metal was melted (e.g., final
33、melt in the case of metal processed by multiple melting operations) and the results of tests for composition, and of any additional property requirements imposed by 8.5. This report shall include the purchase order number, heat and lot numbers, AMS4676F, product form and size or part number, and qua
34、ntity. 4.5 Resampling and Retesting Shall be as follows: 4.5.1 Bars and Forging Stock In accordance with AMS2371. 4.5.2 Forgings In accordance with AMS2374. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be as follows: 5.1.1 Bars In accordance with AMS2806. 5.1.2 Forgings In accordance with AM
35、S2808. 5.1.3 Forging Stock As agreed upon by purchaser and producer. SAE INTERNATIONAL AMS4676F Page 6 of 6 5.2 Packaging The product shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, a
36、nd transportation of the product to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A producer shall mention 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 mo
37、difications 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, have been made to the previous issue of this document.
38、 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 Hardness conversion tables for metals are presented in A
39、STM E140. 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 primary units and are presented
40、only for information. 8.5 Purchase documents should specify not less than the following: AMS4676F Form and size or part number of product desired Quantity of product desired If forging stock, specify any additional property requirements beyond those reported in 4.4.2 and provide details of how to obtain the desired samples. 8.6 Similar Specifications Federal QQ-N-286 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 COMM,77()
