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 ther
2、efrom, 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 2018 SAE International All rights reserved. No part of this
3、publication 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: +1 724-776-49
4、70 (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/AMS5643V AEROSPACE MATERIAL SPECIFICATION AMS5643 REV. V Issued 1951-10 Revised 2018-01 Supers
5、eding AMS5643U Steel, Corrosion-Resistant, Bars, Wire, Forgings, Mechanical Tubing, and Rings 16Cr - 4.0Ni - 0.30Cb (Nb) - 4.0Cu Solution Heat Treated, Precipitation Hardenable (Composition similar to UNS S17400) RATIONALE AMS5643V results from a limited scope ballot to revise the incorporation date
6、 for compliance with AS6279 (3.7), and incorporates general agreements related to Reports (4.4) and Identification (5.2.1.1). 1. SCOPE 1.1 Form This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings up to 8.0 inches (203 mm) i
7、n diameter or least distance between parallel sides, and stock of any size for forging, flash welded rings, or heading (see 8.8). 1.1.1 For purchase of solution treated and aged product, use the applicable AMS slash specification (see 8.4). If a slash sheet description is not specified, solution ann
8、ealed material shall be supplied. A specific example of a slash specification is: AMS5643/H1025 - Precipitation Hardened to H1025 condition. 1.2 Application These products have been used typically for parts requiring corrosion resistance and high strength up to 600 F (316 C), but usage is not limite
9、d to such applications. 1.2.1 Certain processing procedures and service conditions may cause these products to become susceptible to stress-corrosion cracking; ARP1110 recommends practices to minimize such conditions. 1.2.2 For applications, such as bolting, where stress-corrosion is a possibility,
10、the product should be precipitation heat treated for not less than 4 hours at the highest temperature compatible with the strength requirements but in no case lower than 1025 F (552 C). SAE INTERNATIONAL AMS5643V Page 2 of 9 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on t
11、he 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 specified,
12、 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-Resistant
13、Steel, Iron Alloy, Titanium, 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 AMS2315 Determination of Delta
14、Ferrite Content AMS2371 Quality 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 AMS2750 Pyrometry AMS2806 Identification Bars, Wire
15、, Mechanical Tubing, and Extrusions, Carbon and 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 All
16、oys AMS-H-6875 Heat Treatment of Steel Raw Materials ARP1110 Minimizing Stress Corrosion Cracking in Wrought Forms of Steels and Corrosion Resistant Steels and Alloys ARP1917 Clarification of Terms Used in Aerospace Metals Specifications AS6279 Standard Practices for Production, Distribution, and Pr
17、ocurement of Metal Stock 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 E340 Macroetching Metals and Alloys ASTM E353 Chemical Analys
18、is of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys SAE INTERNATIONAL AMS5643V Page 3 of 9 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 s
19、pectrochemical methods, or by other analytical methods acceptable to purchaser. Table 1 - Composition Element Min Max Carbon - 0.07 Manganese - 1.00 Silicon - 1.00 Phosphorus - 0.040 Sulfur - 0.030 Chromium 15.00 17.50 Nickel 3.00 5.00 Columbium (Niobium) 5xC 0.45 Copper 3.00 5.00 Molybdenum - 0.50
20、3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2248. 3.2 Condition The product shall be supplied in the following condition: 3.2.1 Bars and Wire 3.2.1.1 Rounds Solution heat treated and smooth turned or centerless ground or, when so ordered, centerless groun
21、d and polished or cold drawn, solution heat treated, and descaled. 3.2.1.2 Hexagons Cold drawn, solution heat treated, and descaled. 3.2.1.3 Squares and Flats Hot finished, solution heat treated, and descaled. 3.2.1.4 Bar shall not be cut from plate (see also 4.4.6). 3.2.2 Forgings and Flash Welded
22、Rings Solution heat treated and descaled. 3.2.2.1 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. 3.2.3 Mechanical Tubing Hot or cold finished, solution heat treated, and descale
23、d. SAE INTERNATIONAL AMS5643V Page 4 of 9 3.2.4 Stock for Forging, Flash Welded Rings, or Heading As ordered by the forging, flash welded ring, or heading manufacturer. 3.3 Solution Heat Treatment Bars, wire, forgings, flash welded rings, and extrusions shall be solution heat treated in accordance w
24、ith AMS-H-6875 by heating to 1900 F 25 F (1038 C 14 C), holding at heat for a time commensurate with section thickness, heating equipment, and procedure used, and cooling as required to below 90 F (32 C). Pyrometry shall be in accordance with AMS2750. 3.3.1 Flash welded rings may be given a homogeni
25、zation heat treatment prior to solution heat treatment when permitted by purchaser. When such treatment is permitted, the rings shall be heated to 2100 F 25 F (1149 C 14 C), held at heat for not less than 90 minutes, and cooled at a rate equivalent to, or faster than, an air cool. 3.4 Properties The
26、 product shall conform to the following requirements; tensile and hardness testing shall be performed in accordance with ASTM A370: 3.4.1 Macrostructure Visual examination of transverse sections etched in hot hydrochloric acid in accordance with ASTM E340 shall show no pipe or cracks. Porosity, segr
27、egation, inclusions, and other imperfections may be specified by macrostructure standards established by the cognizant engineering organization. 3.4.2 Microstructure The product shall contain not more than 5% ferrite, determined in accordance with AMS2315. 3.4.3 Mechanical Properties 3.4.3.1 As Solu
28、tion Heat Treated Hardness shall conform to Table 2. 3.4.3.2 Response to Precipitation Heat Treatment Solution heat treated product up to 8.0 inches (203 mm) in diameter or least distance between parallel sides, precipitation heat treated to a particular condition in accordance with the correspondin
29、g temperatures and times shown in Table 2, and cooled in air, shall have the properties shown in Table 2 for that particular condition. Tensile tests and hardness tests shall be performed in the H900 precipitation heat treated condition, unless otherwise specified by the cognizant engineering organi
30、zation. 3.4.3.2.1 Mechanical property requirements for product outside of the range covered by 1.1 shall be agreed upon between purchaser and producer. SAE INTERNATIONAL AMS5643V Page 5 of 9 Table 2 - Hardness and minimum tensile properties Condition Tensile Strength ksi (MPa) Yield Strength at 0.2%
31、 Offset ksi (MPa) Elongation in 4D % Reduction of Area % Hardness (1) HB Hardness (1) HRC Temperature/ Time F (C)/Hours H900 190 (1310) 170 (1172) 10 40 (2) 388-444 40-47 900 (482)/1 (3) H925 170 (1172) 155 (1069) 10 44 (2) 375-429 38-45 925 (496)/4 (4) H1025 155 (1069) 145 (1000) 12 45 331-401 34-4
32、2 1025 (552)/4 (4) H1075 145 (1000) 125 ( 862) 13 45 311-375 31-38 1075 (579)/4 (4) H1100 140 ( 965) 115 ( 793) 14 45 302-363 30-37 1100 (593)/4 (4) H1150 135 ( 931) 105 ( 724) 16 50 277-352 28-37 1150 (621)/4 (4) Solution Heat Treated 363 (5) 39 (5) 1900 (1038) (6) NOTES: 1. Hardness shall not be t
33、he basis for rejection if tensile properties are acceptable, determined on specimens taken from the same sample as that with nonconforming hardness or from another sample with similar nonconforming hardness. 2. For sizes over 3 inches (76 mm), 35% for H900 condition and 38% for H925 condition. 3. Te
34、mperature tolerance 10 F (6 C); time tolerance 0.1 hour (5 minutes); cool in air. 4. Temperature tolerance 10 F (6 C); time tolerance 0.3 hour (15 minutes); cool in air. 5. Maximum; alternate for wire: 175 ksi (1207 MPa) or equivalent hardness (see 8.3). 6. Temperature tolerance 25 F (14 C); time co
35、mmensurate with thickness, heating equipment, and procedure used, and cooling as required to below 90 F (32 C). 3.4.3.2.2 Alternative Test of Forging Stock A sample of stock, forged to a coupon having a percent reduction not greater than the least reduced portion of the forging and heat treated in a
36、ccordance with 3.3 and Table 2 shall conform to the requirements of Table 2. 3.5 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. 3.5.1 Grain flow of die forgin
37、gs, except in areas which contain flash-line end grain, shall follow the general contour of the forgings showing no evidence of reentrant grain flow. 3.6 Tolerances Shall conform to all applicable requirements of the following: 3.6.1 Bars and Wire In accordance with AMS2241. 3.6.2 Mechanical Tubing
38、In accordance with AMS2243. 3.7 Production, distribution, and procurement of metal stock shall comply with AS6279. After production and certification to the specified requirements, cutting in a plane perpendicular to the short transverse dimension is permitted. The requirement for compliance with AS
39、6279 becomes effective 04/01/2019. SAE INTERNATIONAL AMS5643V Page 6 of 9 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of the product shall supply all samples for producers tests and shall be responsible for the performance of all required tests. Purchaser reserves
40、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 following requirements are acceptance tests and shall be performed on each heat or lot as applicable: 4.2
41、.1.1 Composition (3.1) and macrostructure (3.4.1) of each heat. 4.2.1.2 Hardness (Table 2) of each lot of bars, wire, forgings, mechanical tubing, and flash welded rings as solution heat treated. 4.2.1.3 Mechanical properties (Table 2) and microstructure (3.4.2) of each lot of bars, wire, forgings,
42、mechanical tubing, and flash welded rings after precipitation heat treatment to the specified condition (3.4.3.2). 4.2.1.4 Tolerances (3.7) of bars, wire, and mechanical tubing. 4.2.2 Periodic Tests The ability of forging stock (3.4.3.2.1) to develop required properties, the ability of other product
43、s to develop required properties in conditions other than that tested in accordance with 3.4.3.2, and grain flow of die forgings (3.5.1) 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 S
44、hall be as follows: 4.3.1 Bars, Wire, Mechanical Tubing, Flash Welded Rings, and Stock for Forging, Flash Welded Rings, or Heading In accordance with AMS2371. 4.3.2 Forgings In accordance with AMS2374. 4.3.3 Stock for Forging, Flash Welded Rings, or Extruding As ordered by the forging, flash welded
45、ring, or extrusion manufacturer. 4.4 Reports The producer of the product shall furnish with each shipment a report showing the producers name and country where the metal was melted (e.g., final melt in the case of metal processed by multiple melting operations) and the results of the following tests
46、: 4.4.1 For each heat. Composition Macrostructure Microstructure SAE INTERNATIONAL AMS5643V Page 7 of 9 4.4.2 For each lot of product as solution heat treated. Hardness 4.4.3 For each lot of product after precipitation heat treatment. Hardness Tensile properties 4.4.4 A statement that the product is
47、 in the solution heat-treated condition and that it conforms to the other technical requirements. 4.4.5 Purchase order number. Heat and lot numbers AMS5643V Product form Size Quantity 4.4.6 If the size being shipped is different from the nominal metallurgically-worked cross-sectional size, the size
48、of the larger product and details of how the shipped size was extracted from the larger product shall be reported. 4.4.7 When the product size is outside the range covered by 1.1, the report shall contain a statement to that effect. 4.4.8 When material produced to this specification is beyond the si
49、zes allowed in the scope or tables, or other exceptions are taken to the technical requirements listed in Section 3 (see 5.2.1.1), the report shall contain a statement “This material is certified as AMS5643V(EXC) because of the following exceptions.” and the specific exceptions shall be listed. 4.4.9 The producer of stock for forging, flash welded rings, or extrusions shall furnish wi
