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 2014 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/AMS5743J RATIONALE This document has been reaffirmed to comply with the SAE five-
5、year review policy. 1. SCOPE:1.1 Form: This specification covers a corrosion and heat-resistant steel in the form of bars, forgings, and forging stock. 1.2 Application: These products have been used typically for parts requiring oxidation resistance and high strength up to 800 F (427 C) and where su
6、ch parts may require welding during fabrication, 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 subse
7、quent revision of a document unless a specific document issue is specified. When the referenced document has been canceled and no superseding document has been specified, the last published issue of that document shall apply.AEROSPACE MATERIAL SPECIFICATION AMS5743 REV. J Issued 1957-09 Revised 2003
8、-07 Reaffirmed 2014-06 Superseding AMS5743H Steel, Corrosion and Heat-Resistant, Bars and Forgings 15.5Cr - 4.5Ni - 2.9Mo - 0.10N Solution Heat Treated, Sub-Zero Cooled, Equalized, and Over-Tempered (Composition similar to UNS S35500) SAE INTERNATIONAL AMS5743J Page 2 of 7 2.1 SAE Publications: Avai
9、lable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001 or www.sae.org.AMS 2241 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and WireAMS 2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other
10、Highly-Alloyed Steels, and Iron AlloysAMS 2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging StockAMS 2374 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steel and Alloy ForgingsAMS 2806 Identification, Bars
11、, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Corrosion and Heat-Resistant Steels and AlloysAMS 2808 Identification, Forgings2.2 ASTM Publications: Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or www.astm.org.ASTM A 370 Mechanical Testing of S
12、teel ProductsASTM E 353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys3. 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 E 353, by
13、 spectrochemical methods, or by other analytical methods acceptable to purchaser.TABLE 1 - CompositionElement min maxCarbon 0.10 0.15Manganese 0.50 1.25Silicon - 0.50Phosphorus - 0.040Sulfur - 0.030Chromium 15.00 16.00Nickel 4.00 5.00Molybdenum 2.50 3.25Nitrogen 0.07 0.13SAE INTERNATIONAL AMS5743J P
14、age 3 of 7 3.1.1 Check Analysis: Composition variations shall meet the applicable requirements of AMS 2248.3.2 Melting Practice: Steel shall be multiple melted using consumable electrode practice in the remelt cycle.3.3 Condition: The product shall be supplied in the following condition:3.3.1 Bars:
15、Solution heat treated, sub-zero cooled, equalized, over-tempered, and descaled.3.3.1.1 Rounds: Ground, turned, or polished after heat treatment.3.3.1.2 Shapes: Cold finished prior to heat treatment.3.3.1.3 Flats: Hot finished prior to heat treatment.3.3.2 Forgings: Solution heat treated, sub-zero co
16、oled, equalized, and over-tempered.3.3.3 Forging Stock: As ordered by the forging manufacturer.3.4 Heat Treatment: Bars and forgings shall be solution heat treated by heating to 1900 F 25 (1038 C 14), holding at heat for 1 to 3 hours, and cooling as rapidly as possible to room temperature; cooled to
17、 -100 F (-73 C) or colder, held at that temperature for not less than three hours, and warmed in air to room temperature; equalized by heating to 1425 F 50 (774 C 28), holding at heat for not less than three hours, and cooling in air to not higher than 80 F (27 C); and over-tempered by heating to 10
18、75 F 25 (579 C 14), holding at heat for not less than three hours, and cooling in air.3.5 Property: The product shall conform to the following requirements; tensile and hardness testing shall be performed in accordance with ASTM A 370:3.5.1 Bars and Forgings: 3.5.1.1 As Solution Heat Treated, Sub-Ze
19、ro Cooled, Equalized, and Over-Tempered: 3.5.1.1.1 Hardness: Shall be not higher than 363 HB, or equivalent (See 8.2), except that bars 0.625 inch (15.88 mm) and under in nominal diameter may have hardness as high as 375 HB, or equivalent (See 8.2).SAE INTERNATIONAL AMS5743J Page 4 of 7 3.5.1.2 Resp
20、onse to Heat Treatment: The product shall have the properties shown in Table 2, after being austenite conditioned by heating to 1750 F 25 (954 C 14), holding at heat for 10 to 60 minutes, and quenching in water; cooling to not higher than -100 F (-73 C), holding at that temperature for not less than
21、 three hours, and warming in air to room temperature; and tempered by heating to 1000 F 25 (538 C 14), holding at heat for not less than three hours, and cooling in air.3.5.1.2.1 Tensile Properties: Shall be as shown in Table 2:3.5.1.2.2 Hardness: Shall be 37 to 44 HRC, or equivalent (See 8.2). Prod
22、uct shall not be rejected on the basis of hardness if the tensile properties of 3.5.1.2.1 are acceptable determined on specimens taken from the same sample as that with nonconforming hardness or from another sample with similar nonconforming hardness.3.5.2 Forging Stock: When a sample of stock is fo
23、rged to a test coupon and heat treated as in 3.4 and 3.5.1.2, specimens taken from the heat treated coupon shall conform to the requirements of 3.5.1.2.1 and 3.5.1.2.2. If specimens taken from the stock after heat treatment as in 3.4 and 3.5.1.2 conform to the requirements of 3.5.1.2.1 and 3.5.1.2.2
24、, the tests shall be accepted as equivalent to tests of a forged coupon.3.6 Quality: The product, as received by purchaser, shall be uniform in quality and condition, essentially free of grain boundary carbides, sound, and free from foreign materials and from imperfections detrimental to usage of th
25、e product.3.6.1 Grain flow of die forgings, except in areas which contain flash-line end grain, shall follow the general contour of the forgings showing no evidence of re-entrant grain flow.3.7 Tolerances: Bars shall conform to all applicable requirements of AMS 2241.TABLE 2 - Minimum Tensile Proper
26、tiesProperty ValueTensile Strength 170 ksi (1172 MPa)Yield Strength at 0.2% Offset 155 ksi (1069 MPa)Elongation in 4D 12%Reduction of Area 25%SAE INTERNATIONAL AMS5743J Page 5 of 7 4. QUALITY ASSURANCE PROVISIONS: 4.1 Responsibility for Inspection: The vendor of the product shall supply all samples
27、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.4.2 Classification of Tests: 4.2.1 Acceptance Tests: The
28、 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 (3.5.1.1.1) of each lot of bars and forgings as solution heat treated, sub-zero cooled, equalized, and over-tempered.4.2.1.3 Tensile propertie
29、s (3.5.1.2.1) and hardness (3.5.1.2.2) of each lot of bars and forgings after austenite conditioning, sub-zero cooling, and tempering.4.2.1.4 Tolerances (3.7) of bars.4.2.2 Periodic Tests: Tests of forging stock (3.5.2) to demonstrate ability to develop required properties and grain flow of die forg
30、ings are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser.4.3 Sampling and Testing: Shall be as follows:4.3.1 Bars, and Forging Stock: In accordance with AMS 2371.4.3.2 Forgings: In accordance with AMS 2374.4.4 Reports:
31、 The vendor of the product shall furnish with each shipment a report showing the results of tests for composition of each heat and for hardness of each lot as received and tensile properties and hardness of each lot after austenite conditioning, sub-zero cooling, and tempering, and stating that the
32、product conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS 5743J, size, and quantity. If forgings are supplied, the size and melt source of stock used to make the forgings shall also be included.SAE INTERNATIONAL AMS5743J Page
33、 6 of 7 4.5 Resampling and Retesting: Shall be as follows:4.5.1 Bars and Forging Stock: In accordance with AMS 2371.4.5.2 Forgings: In accordance with AMS 2374.5. PREPARATION FOR DELIVERY: 5.1 Sizes: Except when exact lengths or multiples of exact lengths are ordered, straight bars will be acceptabl
34、e in mill lengths of 6 to 20 feet (1.8 to 6.1 m) but not more than 10% 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: In accordance with AMS 2806.5.2.2 Forgings: In accordance with AMS 2808.5.2.3 Forging Stock: As agreed up
35、on by purchaser and vendor.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.
36、6. ACKNOWLEDGMENT: A vendor 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.SAE INTERNATIONA
37、L AMS5743J Page 7 of 7 8. NOTES:8.1 A change bar (|) 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 specification. An (R) symbol to the left of the document title indicates
38、 a complete revision of the specification, including technical revisions. Change bars and (R) are not used in original publications, nor in specifications that contain editorial changes only.8.2 Hardness conversion tables for metals are presented in ASTM E 140.8.3 Terms used in AMS are clarified in
39、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 only for information.8.5 Procurement documents should specify not less than the following: AMS 5743JForm and size or part number of product desiredQuantity of product desired.PREPARED UNDER THE 3JURSDICTION OF AMS COMMITTEE “F”
