1、 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRU t 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 therefrom, is
2、the sole rHVSRQVLELOLWRIWKHXVHU 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 2016 SAE International All rights reserved. No part of this publication may
3、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 USA)
4、 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/AMS4720H AEROSPACE MATERIAL SPECIFICATION AMS4720 REV. H Issued 1940-03 Revised 2016-08 Supersed
5、ing AMS4720G Wire, Phosphor Bronze 94Cu - 5.0Sn - 0.19P Cold Drawn, Spring Temper (H08) (Composition similar to UNS C51000) RATIONALE AMS4720H results from a limited scope ballot to revise Composition (Table 1). 1. SCOPE 1.1 Form This specification covers one type of bronze in the form of round wire
6、 0.500 inch (12.70 mm) and under in nominal diameter (see 8.4). 1.2 Application This wire has been used typically for springs, 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
7、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 issue of that document shall ap
8、ply. 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. AMS2224 Tolerances Copper and Copper Alloy Wire SAE INTERNATIONAL AMS4720H Page 2 of 5 2.2 ASTM Publ
9、ications 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 B250/B250M General Requirements for Wrought Copper-Alloy Wire ASTM E8/E8M Tension Testing of Metallic Materials ASTM E290 Bend Testing of Material
10、 for Ductility ASTM E478 Chemical Analysis of Copper 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 E478, by spectrochemical methods, or by other analytical methods acceptable t
11、o purchaser. Table 1 - Composition Element (3.1.1) min max Tin 4.2 5.8 Phosphorus 0.03 0.35 Zinc - 0.30 Iron - 0.10 Lead - 0.05 Copper (3.1.2) + Sum of Named Elements (3.1.3) 99.5 - 3.1.1 These composition limits do not preclude the presence of other elements. Limits may be established and analysis
12、required for unnamed elements by agreement between the manufacturer or supplier and purchaser. 3.1.2 boxes or drums shall be marked with the same information. 5.2.2 Straight Lengths Shall have attached to each bundle or enclosed in each box a durable tag or label marked with the information of 5.2.1
13、 when boxed, the box shall be marked with the same information. 5.3 Packaging 5.3.1 Spools and Coils Coils shall be individually wrapped with waterproof paper or packed in waterproof drums. Spools, when ordered, shall be boxed. 5.3.2 Straight Lengths Shall be bundled or boxed. 5.3.3 Packages of wir
14、e 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 wire to ensure carrier acceptance and safe delivery. Packaging shall conform to carrier rules and regulatio
15、ns applicable to the mode of transportation. 6. ACKNOWLEDGMENT A vendor shall include this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Wire not conforming to this specification, or to modifications authorized by purchaser, will
16、 be subject to rejection. SAE INTERNATIONAL AMS4720H Page 5 of 5 8. NOTES 8.1 Revision Indicator 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. A
17、n (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 Copper temper designations are defined in ASTM B601. 8.2.1
18、 Terms used in AMS are clarified in ARP1917. 8.3 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 info
19、rmation. 8.4 Purchase documents should specify not less than the following: AMS4720H Size and form (spools, coils, or straight lengths) of wire required Property and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1 Quantity of wire required. 8.5 Similar Specifications SAE J463, Alloy C51000, Spring Temper, and ASTM B159/B159M, Alloy C51000, Spring Temper, are listed for information only and shall not be construed as acceptable alternates unless all requirements of this AMS are met. PREPARED BY AMS COMM,77(
