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:/www.sae.org/technical/standards/AMS5762G AEROSPACE MATERIAL SPECIFICATION AMS5762 REV. G Issued 1971-05 Reaffirme
5、d 2006-04 Revised 2016-02 Superseding AMS5762F Steel, Corrosion Resistant, Bars, Wire, and Forgings 5.8Mn - 17Cr - 5.8Ni - 2.0Cu - 0.26S Free Machining, Solution Heat Treated (Composition similar to UNS S20300) RATIONALE AMS5762G revises Condition (3.2.1.3) and Reports (4.4), and is a Five Year Revi
6、ew and update of this specification. 1. SCOPE 1.1 Form This specification covers a free-machining, corrosion-resistant steel in the form of bars, wire, forgings, and forging stock. 1.2 Application This product has been used typically for parts on which the amount of machining warrants use of a free-
7、machining grade of steel, requiring corrosion resistance similar to the 18-8 type steels but not subjected to temperatures exceeding 700 F (371 C) during fabrication or in service, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect o
8、n 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 cancelled and no superseding document has been specifi
9、ed, 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 USA), www.sae.org. AMS2241 Tolerances, Corrosion and Heat-Resista
10、nt Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and Wire AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and A
11、lloys, Wrought Products and Forging Stock SAE INTERNATIONAL AMS5762G Page 2 of 5 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 and Corrosion and Heat-
12、Resistant Steels and Alloys AMS2808 Identification Forgings 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.org. ASTM A370 Mechanical Testing of Steel Products ASTM E353 Chemical Analysis of
13、Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron 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 E353, by spectrochemical methods, or by other analytica
14、l methods acceptable to purchaser. Table 1 - Composition Element min max Carbon - 0.08 Manganese 5.00 6.50 Silicon 0.20 0.70 Phosphorus - 0.04 Sulfur 0.15 0.35 Chromium 16.00 18.00 Nickel 5.00 6.50 Copper 1.75 2.25 Molybdenum - 0.50 3.1.1 Check Analysis Composition variations shall meet the applicab
15、le requirements of AMS2248. 3.2 Condition The product shall be supplied in the following condition: 3.2.1 Bars, Wire, and Forgings Solution heat treated. 3.2.1.1 All hexagons, other bars 2.750 inches (69.85 mm) and under in nominal diameter or least distance between parallel sides, and wire shall be
16、 cold finished. 3.2.1.2 Bars, other than hexagons, over 2.750 inches (69.85 mm) in nominal diameter or least distance between parallel sides shall be hot finished or cold finished. 3.2.1.3 Bars shall not be cut from plate. (Also see 4.4.2). SAE INTERNATIONAL AMS5762G Page 3 of 5 3.2.2 Forging Stock
17、As ordered by the forging manufacturer. 3.3 Properties The product shall conform to the following requirements; hardness and tensile testing shall be performed in accordance with ASTM A370: 3.3.1 Tensile Properties of Wire Shall have tensile strength of 85 to 125 ksi (586 to 862 MPa). 3.3.2 Hardness
18、 3.3.2.1 Bars Shall be 140 to 255 HB, or equivalent (see 8.2), determined approximately midway between surface and center. 3.3.2.2 Forgings Shall be not higher than 187 HB, or equivalent (see 8.2). 3.3.3 Forging Stock As agreed upon by purchaser and producer. 3.4 Quality The product, as received by
19、purchaser, shall be uniform in quality and condition, sound, and, consistent with the type of steel involved, 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
20、 general contour of the forgings showing no evidence of reentrant grain flow. 3.5 Tolerances Bars and wire shall conform to all applicable requirements of AMS2241. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of the product shall supply all samples for producers tes
21、ts 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. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1),
22、tensile properties (3.3.1) or hardness (3.3.2), quality (3.4), and tolerances (3.5) are acceptance tests and shall be performed on each heat or lot as applicable. 4.2.2 Periodic Tests Grain flow of die forgings (3.4.1) is a periodic test and shall be performed at a frequency selected by the producer
23、 unless frequency of testing is specified by purchaser. SAE INTERNATIONAL AMS5762G Page 4 of 5 4.3 Sampling and Testing Shall be as follows: 4.3.1 Bars, Wire, and Forging Stock In accordance with AMS2371. 4.3.2 Forgings In accordance with AMS2374. 4.4 Reports 4.4.1 The producer of the product shall
24、furnish with each shipment a report showing the producers name and the country where the metal was melted (e.g., final melt in the case of metal processed by multiple melting operations) and showing the results of tests for composition of each heat and for tensile properties and hardness of each lot
25、, and stating that the product conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS5762G, product form, size, and quantity. If forgings are supplied, the size and melt source of stock used to make the forgings shall also be incl
26、uded. 4.4.2 Report the nominal metallurgically worked cross sectional size and the cut size, if different (Also see 3.2.1.3). 4.4.3 The producer of stock for forging shall furnish with each shipment a report showing the producers name and the country where the metal was melted (e.g., final melt in t
27、he case of metal processed by multiple melting operations), and the results of tests for composition for each heat. This report shall include the purchase order number, heat number, AMS5762G, product form, size, and quantity. 4.5 Resampling and Retesting Shall be as follows: 4.5.1 Bars, Wire, and Fo
28、rging Stock In accordance with AMS2371. 4.5.2 Forgings In accordance with AMS2374. 5. PREPARATION FOR DELIVERY 5.1 Sizes Except when exact lengths or multiples of exact lengths are ordered, straight bars and wire will be acceptable in mill lengths of 6 to 20 feet (1.8 to 6.1 m) but not more than 10%
29、 of any shipment shall be supplied in lengths shorter than 10 feet (3 m). 5.2 Identification Shall be as follows: 5.2.1 Bars and Wire In accordance with AMS2806. 5.2.2 Forgings In accordance with AMS2808. SAE INTERNATIONAL AMS5762G Page 5 of 5 5.2.3 Forging Stock As agreed upon by purchaser and prod
30、ucer. 5.3 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, and transportation of the product to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A p
31、roducer 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 modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision Indicator A c
32、hange 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 document, includ
33、ing 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 ASTM E140. 8.3 Terms used in AMS are clarified in ARP1917. 8.4 Dimensions and properties in inch/pound
34、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 only for information. 8.5 Purchase documents should specify not less than the following: AMS5762G Product form and size or part number of product desired If forging stock, data required in report (see 3.3.3) Quantity of product desired. PREPARED BY AMS COMMITTEE “F”
