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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2012 SAE International All rights reserved. No part of this publication m
3、ay 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 (outside U
4、SA) 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/AMS7732D AEROSPACE MATERIAL SPECIFICATION AMS7732 REV. D Issued 1970-11 Stabilized 2012-11 Su
5、perseding AMS7732C Steel Wire, Copper Clad, Round 99Fe - 0.32Mn Annealed RATIONALE AMS7732D is designated as stabilized by AMS Committee E because it is deemed to represent technology that is not expected change in the future. STABILIZED NOTICE This document has been declared “Stabilized“ by the AMS
6、 Committee E, Carbon and Low Alloy Steels, and will not be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability of technical requirements. Newer technology may exist. 1. SCOPE 1.1 Form This specification covers a low-carbon steel in the
7、 form of round wire clad with electrolytic copper. 1.2 Application This wire has been used typically for electronic components requiring soft magnetic properties but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the p
8、urchase 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 publis
9、hed 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. AMS2259 Chemical Check Analysis Limits, Wrought Low-Alloy and Carbon
10、 Steels AMS2370 Quality Assurance Sampling and Testing, Carbon and Low-Alloy Steel Wrought Products and Forging Stock Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS7732D Page 2 of 5 2.2 ASTM
11、 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 A 370 Mechanical Testing of Steel Products ASTM B 5 High Conductivity Tough-Pitch Copper Refinery Shapes ASTM E 350 Chemical Analysis of Carb
12、on Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron 3. TECHNICAL REQUIREMENTS 3.1 Composition 3.1.1 Basis Wire (Core) Shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 350 or by spectrochemical or o
13、ther analytical methods acceptable to purchaser: TABLE 1 - COMPOSITION Element min max Carbon - 0.08 Manganese 0.25 0.40 Phosphorus - 0.04 Sulfur - 0.05 3.1.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2259. 3.1.2 Cladding (Sheath) Shall be electroloytic cop
14、per (not less than 99.90% by weight copper) conforming to ASTM B 5. 3.2 Condition Cold drawn or cold rolled, annealed, cleaned, clad, and annealed. 3.3 Properties Wire shall conform to the following requirements; tensile and bend testing shall be performed in accordance with ASTM A 370: 3.3.1 Tensil
15、e Strength Shall be 50 to 100 ksi (345 to 690 MPa). 3.3.2 Bending Finished wire shall withstand, without evidence of cracking or of separation of the cladding (sheath) from the basis wire when examined under 10X magnification, bending at room temperature through an angle of 180 degrees around a diam
16、eter equal to the nominal diameter of the wire. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS7732D Page 3 of 5 3.4 Quality Wire, as received by purchaser, shall be uniform in quality, condi
17、tion, temper, and cross-section. Surfaces, evaluated at up to 30X magnification shall be free from scale, corrosion, cracks, seams, scratches, slivers, dirt, grease, oil, streaks, stains, pit marks, burns, dents, blisters, laps, grooves, inclusions, and other imperfections detrimental to usage of th
18、e wire. 3.5 Tolerances 3.5.1 Cladding (Sheath) Thickness The completed core-and-sheath cross-section shall be 27 to 35% by weight copper. At any cross-section, the maximum thickness of the sheath shall not exceed twice the minimum thickness of the sheath. 3.5.2 Diameter Wire shall be supplied in the
19、 sizes and to the tolerances shown in Table 2. TABLE 2A - DIAMETER TOLERANCES, INCH/POUND UNITS Nominal Diameter Inch Tolerance, Inch plus and minus 0.012 0.0003 0.014 0.0004 0.016 0.0004 0.020 0.0005 0.025 0.0005 0.032 0.0005 0.040 0.0005 TABLE 2B - DIAMETER TOLERANCES, SI UNITS Nominal Diameter Mi
20、llimeter Tolerance, Millimeter plus and minus 0.30 0.008 0.35 0.010 0.40 0.010 0.50 0.012 0.62 0.012 0.80 0.012 1.00 0.012 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of wire shall supply all samples for vendors tests and shall be responsible for the performance of a
21、ll required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the wire conforms to specified requirements. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted witho
22、ut license from IHS-,-,-SAE AMS7732D Page 4 of 5 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1.1 and 3.1.2), tensile strength (3.3.1), and tolerances (3.5) are classified as acceptance tests and shall be performed on each heat or lot as applicable. 4.2.2 Periodic Tests Bending
23、(3.3.2) is a periodic test and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.3 Sampling Shall be in accordance with AMS2370. 4.4 Reports The vendor of wire shall furnish with each shipment a report showing the results of tests for c
24、omposition of each heat and for tensile strength and cladding thickness of each lot and stating that the wire conforms to the other technical requirements. This report shall include the purchase order number, manufacturers identification, heat and lot numbers, AMS7732D, nominal size, and quantity. 4
25、.5 Resampling and Retesting Shall be in accordance with AMS2370. 5. PREPARATION FOR DELIVERY 5.1 Packaging and Identification 5.1.1 Wire shall be wound on spools, without splicing, in lengths of not less than 100 feet (30 m). Spools shall be packaged in such a manner as to minimize, during shipment
26、and storage, damage from normal hazards. 5.1.2 Each spool and the exterior of each container shall be permanently and legibly marked with not less than the following information: AMS7732D SIZE _ QUANTITY _ PURCHASE ORDER NUMBER _ MANUFACTURERS IDENTIFICATION _ 5.1.3 Containers of wire shall be prepa
27、red for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the wire to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall include this specification number and
28、 its revision letter in all quotations and when acknowledging purchaser orders. 7. REJECTIONS Wire not conforming to this specification or to modifications authorized by purchaser, will be subject to rejection. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reprod
29、uction or networking permitted without license from IHS-,-,-SAE AMS7732D Page 5 of 5 8. NOTES 8.1 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.
30、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 contain editorial changes only. 8.2 Dimensions and properties in inch/pound units and the Fah
31、renheit 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. 8.3 Purchase documents should specify not less than the following: AMS7732D Size of wire desired Quantity of wire desired. PREPARED BY AMS COMMITTEE “E“ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
