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 theref
2、rom, 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 2015 SAE InternationalAll rights reserved. No part of this publi
3、cation 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: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS7717EAEROSPACEMATERIAL SPECIFICATIONAMS7717 REV. EIssued 1961-01Reaffirmed 2011-11Revised
5、2015-08Superseding AMS7717DNickel-Iron Alloy, Magnetic, Sheet and Strip50Ni - 50FeAnnealed, Forming Grade(Composition similar to UNS K95000)RATIONALEAMS7717E results from a Five Year Review and update of this specification.1. SCOPE1.1 FormThis specification covers a magnetically soft nickel-iron all
6、oy in the form of sheet and strip.1.2 ApplicationThese products have been used typically for parts in magnetic circuits requiring high magnetic permeability and high saturation induction with the fabricated parts to be annealed in dry hydrogen, but usage is not limited to such applications.2. APPLIC
7、ABLE DOCUMENTSThe 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 subsequent revision of a document unless a specific document issue is specified. When the referenced document h
8、as been cancelled and no superseding document has been specified, the last published issue of that document shall apply.2.1 SAE PublicationsAvailable 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),
9、 www.sae.org.AMS2242 Tolerances, Corrosion and Heat Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Sheet, Strip, and PlateAMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging StockAMS2807 Identification, Carbon and Lo
10、w-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet, Strip, Plate, and Aircraft TubingSAE INTERNATIONAL AMS7717E Page 2 of 42.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.or
11、g.ASTM A596/A596M Direct-Current Magnetic Properties of Materials Using the Ballistic Method and Ring SpecimensASTM A773/A773M D-C Magnetic Properties of Materials Using Ring and Permeameter Procedures with dc Electronic Hysteresigraphs.ASTM E18 Rockwell Hardness of Metallic Materials3. TECHNICAL RE
12、QUIREMENTS3.1 CompositionShall be an alloy containing approximately 50% nickel and 50% iron with other alloying elements in such proportions as required to provide a product meeting the requirements of 3.3.3.2 ConditionHot rolled with subsequent cold reduction, annealed, and descaled having a surfac
13、e appearance comparable to the following commercial corrosion-resistant steel finishes as applicable (See 8.2).3.2.1 SheetNo. 2D finish.3.2.2 StripNo. 1 strip finish.3.3 PropertiesThe product shall conform to the following requirements:3.3.1 HardnessShall be not higher than shown in Table 1, or equi
14、valent (See 8.3), determined in accordance with ASTM E18.Table 1 - Maximum hardnessNominal ThicknessInchNominal ThicknessMillimetersHardnessHRB0.006 to 0.059, incl 0.15 to 1.50, incl 75Over 0.059 Over 1.50 853.3.2 Magnetic PropertiesShall be as shown in Table 2, determined in accordance with ASTM A5
15、96/A596M or ASTM A773/A773M on specimens as in 4.3.1 annealed by heating to 2150 F 25 (1177 C 14) in a dry hydrogen atmosphere having a dew point of -60 F (- 1 C) or lower, holding at heat for 4 hours 0.25, and cooling in a non-contaminating atmosphere at a rate not greater than 100 F (56 C) degrees
16、 per hour to 1100 F (593 C) or lower, unless another cooling rate is recommended by the alloy producer (See 8.4).SAE INTERNATIONAL AMS7717E Page 3 of 4Table 2 - Annealed minimum magnetic propertiesNominal ThicknessInchNominal ThicknessMillimetersMaximumDCPermeabilityPermeability atB = 100 Gauss(0.01
17、T)Induction atH = 100 Oersteds(7958 A/m)Up to 0.020, excl Up to 0.51, excl 60 000 8000 15 000 gauss (1.5T)0.020 and over 0.51 and over 40 000 6000 15 000 gauss (1.5T)3.4 QualityThe product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials an
18、d from imperfections detrimental to usage of the product.3.5 TolerancesShall conform to all applicable requirements of AMS2242.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe producer of the product shall supply all samples for producers tests and shall be responsible for the per
19、formance 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 TestsAll technical requirements are acceptance tests and shall be performed on each heat
20、 or lot as applicable.4.3 Sampling and TestingShall be in accordance with AMS2371 and the following:4.3.1 For magnetic property tests, one or more samples shall be selected at random from each lot.4.4 ReportsThe producer of the product shall furnish with each shipment a report showing the producer i
21、dentity, the results of tests for hardness and magnetic properties of each lot, and stating that the product conforms to the other technical requirements.This report shall include the purchase order number, heat and lot numbers, AMS7717E, cooling rate if other than 100 F (56 C) degrees per hour, met
22、hod of testing and specimen thickness used for magnetic properties, size, and quantity.4.5 Resampling and RetestingShall be in accordance with AMS2371.SAE INTERNATIONAL AMS7717E Page 4 of 45. PREPARATION FOR DELIVERY5.1 IdentificationShall be in accordance with AMS2807.5.2 Protective TreatmentProduc
23、t shall be protected from corrosion prior to shipment.5.3 PackagingThe 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 acce
24、ptance and safe delivery.6. ACKNOWLEDGMENTA producer shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders.7. REJECTIONSProduct not conforming to this specification, or to modifications authorized by purchaser, will be subject to rej
25、ection.8. NOTES8.1 A change 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 o
26、f the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only.8.2 Commercial corrosion-resistant steel finishes are defined in ASTM A480/A480M and AS4194.8.3 Hardness conversion tables for metals are pre
27、sented in ASTM E140.8.4 Annealing of fabricated parts is required to produce the required magnetic properties. Dry hydrogen atmosphere is typically recommended. Vacuum or other protective atmospheres may produce magnetic properties that are not equivalent to those produced in dry hydrogen.8.5 Terms
28、used in AMS are clarified in ARP1917.8.6 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.8.7 Purchase documents should specify not less than the following:AMS7717EForm and size of product desiredQuantity of product desired.PREPARED BY AMS COMMITTEE “E“
