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/AMS5646P AEROSPACE MATERIAL SPECIFICATION AMS5646 REV. P Issued 1947-09 Reaffirme
5、d 2007-08 Revised 2014-07 Superseding AMS5646N Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Tubing, and Rings 18Cr - 11Ni - 0.60Cb(Nb) (347) Solution Heat Treated (Composition similar to UNS S34700) RATIONALE AMS5646P results from a Limited Scope Ballot to revise Condition (3.2.1.1.2).
6、 1. SCOPE 1.1 Form This specification covers a corrosion and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings. 1.2 Application These products have been used typically for parts requiring good corrosion resist
7、ance and which will be subjected to elevated temperatures during fabrication or in service and for parts requiring oxidation resistance up to 1500 F (816 C), but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purch
8、ase 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 specified, the last published
9、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 724-776-4970 (outside USA), www.sae.org. AMS2241 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Tita
10、nium, and Titanium Alloy Bars and Wire AMS2243 Tolerances, Corrosion and Heat-Resistant Steel Tubing AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys SAE INTERNATIONAL AMS5646P Page 2 of 7 AMS2371 Qualit
11、y Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging Stock AMS2374 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steel and Alloy Forgings AMS2806 Identification, Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and
12、 Alloy Steels and Corrosion and Heat-Resistant Steels and Alloys AMS2808 Identification, Forgings AMS7490 Rings, Flash Welded, Corrosion and Heat-Resistant Austenitic Steels, Austenitic-Type Iron, Nickel, or Cobalt Alloys, or Precipitation-Hardenable Alloys 2.2 ASTM Publications Available from ASTM
13、International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A 262 Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels ASTM A 370 Mechanical Testing of Steel Products ASTM E 353 Chemical Analysis of Stainless
14、, 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 E 353, by spectrochemical methods, or by other analytical method
15、s acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon - - 0.08 Manganese - - 2.00 Silicon - - 1.00 Phosphorus - - 0.040 Sulfur - - 0.030 Chromium 17.00 19.00 Nickel 9.00 12.00 Columbium (Niobium) 10xC 1.10 Cobalt - - 1.00 Molybdenum - - 0.75 Copper - - 0.75 3.1.1 Check Analysis Com
16、position variations shall meet the applicable requirements of AMS2248. 3.2 Condition The product shall be supplied in the following condition: 3.2.1 Bars, Wire, Forgings, Mechanical Tubing, and Flash Welded Rings Solution heat treated. SAE INTERNATIONAL AMS5646P Page 3 of 7 3.2.1.1 Bars and Wire 3.2
17、.1.1.1 All hexagons regardless of size, other bars 2.75 inches (69.8 mm) and under in nominal diameter or least distance between parallel sides, and wire shall be cold finished. 3.2.1.1.2 Bars, other than hexagons, over 2.75 inches (69.8 mm) in nominal diameter or least distance between parallel sid
18、es shall be hot finished or cold finished. 3.2.1.2 Mechanical Tubing Shall be cold finished. 3.2.1.3 Flash Welded Rings Shall not be supplied unless specified or permitted on purchasers part drawing. When supplied, rings shall be manufactured in accordance with AMS7490. 3.2.2 Stock for Forging or Fl
19、ash Welded Rings As ordered by the forging or flash welded ring manufacturer. 3.3 Properties The product shall conform to the following requirements; hardness and tensile testing shall be performed in accordance with ASTM A 370: 3.3.1 Tensile Properties 3.3.1.1 Bars and Forgings Over 0.50 Inch (12.7
20、 mm) in Nominal Diameter or Least Distance Between Parallel Sides Shall be as Shown in Table 2. TABLE 2 - MINIMUM TENSILE PROPERTIES (SEE 8.5) Property Value Tensile Strength 75 ksi (517 MPa) Yield Strength at 0.2% Offset 30.0 ksi (206.8 MPa) Elongation in 4D 30% Reduction of Area 40% 3.3.1.2 Wire s
21、hall have tensile strength of 85 to 125 ksi (586 to 862 MPa). 3.3.2 Hardness 3.3.2.1 Bars Shall be as shown in Table 3, or equivalent (See 8.2), determined approximately at mid-radius or quarter thickness. TABLE 3 - HARDNESS, HB Nominal Diameter or Least Distance Between Parallel Sides Inches Nomina
22、l Diameter or Least Distance Between Parallel Sides Millimeters min max Up to 2.00, incl Over 2.00 Up to 50.8, incl Over 50.8 140 - 255 255 SAE INTERNATIONAL AMS5646P Page 4 of 7 3.3.2.2 Forgings and Flash Welded Rings Shall be not higher than 187 HB, or equivalent (See 8.2). 3.3.2.3 Mechanical Tubi
23、ng Shall be not higher than 90 HRB, or equivalent (See 8.2), determined approximately midway between outer and inner surfaces. 3.3.3 Susceptibility to Intergranular Attack Specimens from the product, after sensitizing treatment, shall pass the intergranular corrosion test performed in accordance wit
24、h ASTM A 262, Practice E. 3.4 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 gr
25、ain, shall follow the general contour of the forgings showing no evidence of reentrant grain flow. 3.5 Tolerances Shall be as follows: 3.5.1 Bars and Wire In accordance with AMS2241. 3.5.2 Mechanical Tubing In accordance with AMS2243. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection
26、 The vendor of the product shall supply all samples 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
27、 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties (3.3.1.1 or 3.3.1.2, as applicable), hardness (3.3.2), susceptibility to intergranular attack (3.3.3), and tolerances (3.5) are acceptance tests and shall be performed on each heat or lot as applicable. 4.2.2 Perio
28、dic Tests Grain flow of die forgings (3.4.1) is a periodic test and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. SAE INTERNATIONAL AMS5646P Page 5 of 7 4.3 Sampling and Testing Shall be as follows: 4.3.1 Bars, Wire, Mechanical Tubing
29、, Flash Welded Rings, and Stock for Forging or Flash Welded Rings In accordance with AMS2371. 4.3.2 Forgings In accordance with AMS2374. 4.4 Reports 4.4.1 The vendor of the bars, wire, forgings, tubing and rings shall furnish with each shipment a report showing the following results of tests and rel
30、evant information: 4.4.1.1 For each heat: Composition. 4.4.1.2 For each lot of bars, wire, forgings, mechanical tubing, and flash welded rings: Tensile properties, if bars, wire, or forgings Hardness, if not wire Susceptability to intergranular attack. 4.4.1.3 A statement that the product conforms t
31、o the other technical requirements. 4.4.1.4 Purchase order number, heat and lot numbers, AMS5646P, product form, size, quantity. 4.4.1.5 If forgings are supplied, the size and melt source of the stock used to make the forgings. 4.4.2 The vendor of forging stock shall furnish with each shipment a rep
32、ort showing the results of tests for composition, and the results of any additional property requirements imposed by the purchase order (See 8.6). This report shall include the purchase order number, heat and lot numbers, AMS5646P, product form and size or part number, and quantity. 4.5 Resampling a
33、nd Retesting Shall be as follows: 4.5.1 Bars, Wire, Mechanical Tubing, Flash Welded Rings, and Stock for Forging or Flash Welded Rings 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
34、are ordered, straight bars, wire, and mechanical tubing will be acceptable 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). SAE INTERNATIONAL AMS5646P Page 6 of 7 5.2 Identification Shall be as follows: 5.2.
35、1 Bars, Wire, and Mechanical Tubing In accordance with AMS2806. 5.2.2 Forgings In accordance with AMS2808. 5.2.3 Flash Welded Rings and Stock for Forging or Flash Welded Rings As agreed upon by purchaser and vendor. 5.3 Packaging The product shall be prepared for shipment in accordance with commerci
36、al 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 vendor shall mention this specification number and its revision letter in all quotations an
37、d 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 A change bar (|) located in the left margin is for the convenience of the user in locating areas where technical r
38、evisions, 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, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that conta
39、in 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 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 tempe
40、ratures are shown as the approximate equivalents of the primary units and are presented only for information. 8.5 Tensile properties shown in Table 2 for bars and forgings have been taken directly from ASTM A 276, and have not been statistically substantiated in accordance with the SAE Aerospace Mat
41、erials Systems Group policy. 8.6 Purchase documents should specify not less than the following: AMS5646P Product 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 detai
42、ls of how to obtain the desired samples. SAE INTERNATIONAL AMS5646P Page 7 of 7 8.7 Similar Specifications Federal QQ-S-763/AMS-QQ-S-763, Class 347, Condition A, 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 COMMITTEE “F”
