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/AMS5225F AEROSPACE MATERIAL SPECIFICATION AMS5225 REV. F Issued 1955-08Revised 20
5、09-04 Reaffirmed 2014-06 Superseding AMS5225E Iron-Nickel Alloy, Strip 49Fe - 5.3Cr - 42Ni - 2.5Ti - 0.55Al Solution Heat Treated, Cold Rolled, 50% Reduction (Composition similar to UNS N09902) RATIONALE This document has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE 1.1 F
6、orm This specification covers an iron-nickel alloy in the form of strip. 1.2 Application This strip has been used typically for diaphragms, leaf springs, and helical springs, requiring a precipitation-hardenable alloy with a temperature coefficient of modulus of elasticity of -20 to +20 x 10-6per de
7、gree Fahrenheit from -50 to +150 F (-36 to +36 x 10-6per degree Celsius from -46 to +66 C) after suitable heat treatment, 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 speci
8、fication 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 issue of that document shall apply.
9、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. AMS2242 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Sheet, Stri
10、p, and Plate 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 Alloys, Wrought Products and Forging Stock AMS2750 Py
11、rometry AMS2807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet, Strip, Plate, and Aircraft Tubing SAE INTERNATIONAL AMS5225F Page 2 of 5 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocke
12、n, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E 8/E 8M Tension Testing of Metallic Materials ASTM E 18 Rockwell Hardness of Metallic Materials ASTM E 112 Determining Average Grain Size ASTM E 354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, a
13、nd Cobalt Alloys ASTM E 384 Microindentation Hardness of Materials 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 354, by spectrochemical methods, or by other analytical methods accep
14、table to purchaser. TABLE 1 - COMPOSITION Element min max Carbon Manganese Silicon Phosphorus Sulfur Chromium Nickel Titanium Aluminum Chromium + (Titanium - 4x Carbon) Iron - - - - - 4.90 41.00 2.20 0.30 7.10 remainder 0.06 0.80 1.00 0.04 0.04 5.75 43.50 2.75 0.80 8.10 3.1.1 Check Analysis Composit
15、ion variations shall meet the applicable requirements of AMS2248. 3.2 Condition Solution heat treated, cold rolled with approximately 50% reduction in thickness, and descaled. 3.3 Solution Heat Treatment Except as specified in 3.3.1, strip shall be solution heat treated by heating to 1750 F 25 (954
16、C 14), holding at heat for a time commensurate with section thickness, and cooling as required. Pyrometry shall be in accordance with AMS2750. 3.3.1 Continuous Heat Treating: Process parameters (e.g., furnace temperature set points, heat input, travel rate, etc.) for continuous heat treating lines s
17、hall be established by the material producer and validated by testing of product to the other requirements of this specification. SAE INTERNATIONAL AMS5225F Page 3 of 5 3.4 Properties Strip shall conform to the following requirements: 3.4.1 As Solution Heat Treated 3.4.1.1 Average Grain Size Shall b
18、e ASTM No. 5 or finer, determined in accordance with ASTM E 112. 3.4.2 As Solution Heat Treated and Cold Rolled 3.4.2.1 Tensile Properties Shall be as shown in Table 2, determined in accordance with ASTM E 8/E 8M; these requirements apply to strip 0.020 to 0.250 inch (0.51 to 6.35 mm), inclusive, in
19、 nominal thickness. TABLE 2 - TENSILE PROPERTIES Properties Value Tensile Strength Elongation in 2 inches (50.8 mm), minimum 125 to 140 ksi (862 to 965 MPa) 3% 3.4.2.2 Hardness Shall be 24 to 32 HRC, or equivalent (See 8.2), determined in accordance with ASTM E 18. For thin gages where superficial h
20、ardness testing is impractical, microhardness testing in accordance with ASTM E 384 may be used. Strip shall not be rejected on the basis of hardness if the tensile property requirements of 3.4.2.1 are acceptable, determined on specimens taken from the same sample as that with nonconforming hardness
21、 or from another sample with similar nonconforming hardness 3.4.3 After Precipitation Heat Treatment Strip 0.020 to 0.250 inch (0.51 to 6.35 mm), inclusive, in nominal thickness shall conform to the following requirements after being precipitation heat treated by heating to 1300 F 15 (704 C 8), hold
22、ing at heat for 3 hours 0.10, and cooling in air: 3.4.3.1 Tensile Properties Shall be as shown in Table 3, determined in accordance with ASTM E 8/E 8M: TABLE 3 - Minimum Tensile Properties After Precipitation Heat Treatment Property Value Tensile Strength Yield Strength at 0.2% Offset Elongation in
23、2 Inches (50.8 mm) 190 ksi (1310 MPa) 165 ksi (1138 MPa) 5% 3.4.3.2 Hardness Shall be 39 to 46 HRC, or equivalent (See 8.2), determined in accordance with ASTM E 18. For thin gages where superficial hardness testing is impractical, microhardness testing in accordance with ASTM E 384 may be used. Str
24、ip shall not be rejected on the basis of hardness if the tensile properties of 3.4.3.1 are acceptable., determined on specimens taken from the same sample as that with the nonconforming hardness or from another sample with similar nonconforming hardness. SAE INTERNATIONAL AMS5225F Page 4 of 5 3.5 Qu
25、ality Strip, 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 strip. 3.6 Tolerances Shall conform to all applicable requirements of AMS2242. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibilit
26、y for Inspection The vendor of strip 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 strip conforms to specified requireme
27、nts. 4.2 Classification of Tests All technical requirements are acceptance tests and shall be performed on each heat or lot as applicable. 4.3 Sampling and Testing Shall be in accordance with AMS2371. 4.4 Reports The vendor of strip shall furnish with each shipment a report showing the results of te
28、sts for composition of each heat and for average grain size solution heat treated, tensile properties after solution treated and cold rolled, tensile properties and hardness after precipitation heat treatment, and stating that the product conforms to the other technical requirements. This report sha
29、ll include the purchase order, heat and lot numbers, AMS5225F, size, and quantity. 4.5 Resampling and Retesting Shall be in accordance with AMS2371. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with AMS2807. 5.2 Packaging Strip shall be prepared for shipment in accordance wi
30、th commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the strip to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quot
31、ations and when acknowledging purchase orders. 7. REJECTIONS Strip not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. SAE INTERNATIONAL AMS5225F Page 5 of 5 8. NOTES 8.1 A change bar (|) located in the left margin is for the convenience o
32、f the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of a document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revision. Change bars and (R) are not used in original
33、 publications, nor in documents that contain editorial changes only. 8.2 Hardness conversion tables 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 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: AMS5225F Size of strip desired Quantity of strip desired PREPARED BY AMS COMMITTEE “E”
