1、AEROSPACE MATERIAL SPECIFICATION AMS4520 REV. L Issued 1940-01 Revised 2015-01 Superseding AMS4520K Leaded Phosphor Bronze Strip 88.5Cu - 4.0Sn - 4.0Pb - 3.0Zn - 0.26P Cold Rolled, Half Hard (HO2) (Composition similar to UNS C54400) RATIONALE AMS4520L revises Composition (Table 1, 3.1.2) and is a Fi
2、ve Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a copper alloy in the form of strip. 1.2 Application This strip has been used typically for rolled, split bushings, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue of the fol
3、lowing 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 has been cancelled and no supersedi
4、ng document has been specified, 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 724-776-4970 (outside USA, www.sae.org. AMS2222 Tolerances, Co
5、pper and Copper Alloy Sheet, Strip, and Plate _ 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, i
6、ncluding any patent infringement arising therefrom, 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 Intern
7、ational All rights reserved. No part of this 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: 877-606-73
8、23 (inside USA and Canada) Tel: +1 724-776-4970 (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/AMS4520L SAE INTERNATIONAL AMS4520L
9、 Page 2 of 5 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 B248 General Requirements for Wrought Copper and CopperAlloy Plate, Sheet, Strip, and Rolled Bar ASTM B248M General Requ
10、irements for Wrought Copper and CopperAlloy Plate, Sheet, Strip, and Rolled Bar (Metric) ASTM E8/E8M Tension Testing of Metallic Materials 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
11、 wet chemical methods in accordance with ASTM E478, by spectrochemical methods, or by other analytical methods acceptable to purchaser. Table 1 - Composition Element min max Tin 3.5 4.5 Lead 3.0 4.0 Zinc 1.5 4.5 Phosphorus 0.01 0.50 Iron - 0.10 Copper (3.1.2) remainder - Sum of Named Elements (3.1.3
12、) 99.5 - 3.1.1 These composition limits do not preclude the presence of other elements. Limits may be established and analysis required for unnamed elements by agreement between the manufacturer or supplier and purchaser. 3.1.2 Copper may be reported as “remainder”, or as the difference between the
13、sum of results for all analyzed elements and 100%, or as the result of direct analysis. 3.1.3 When all the elements in the table are analyzed, the sum shall be 99.5% minimum, but such determination is not required for routine acceptance of each lot. 3.2 Condition Cold rolled, half hard (H02) temper
14、(See 8.3). 3.3 Properties Strip shall conform to the following requirements: 3.3.1 Tensile Strength, Ultimate Shall be 55.0 to 70.0 ksi (379 to 483 MPa). 3.3.2 Elongation Shall not be lower than 16% in 2 inches (50.8 mm), determined in accordance with ASTM E8/E8M. SAE INTERNATIONAL AMS4520L Page 3 o
15、f 5 3.4 Quality 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. 3.5 Tolerances Shall conform to AMS2222 as applicable to nonrefractory alloys. 4. QUALITY ASSURANCE PROVISIONS
16、4.1 Responsibility 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 sp
17、ecified requirements. 4.2 Classification of Tests All technical requirements are acceptance tests and shall be performed on each lot. 4.3 Sampling and Testing Shall be in accordance with ASTM B248 or ASTM B248M. 4.4 Reports The vendor of strip shall furnish with each shipment a report showing the re
18、sults of tests to determine conformance to the technical requirements. This report shall include the purchase order number, lot number, AMS4520L, size, and quantity. 4.5 Resampling and Retesting If any specimen used in the above tests fails to meet the specified requirements, disposition of the stri
19、p may be based on the results of testing two additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the strip represented. Results of all tests shall be reported. 5. PREPARATION FOR DELIVERY 5.1
20、 Identification Each strip shall be identified as in 5.1.1 unless line marking as in 5.1.2 is specified by purchaser. 5.1.1 Each strip shall be legibly marked near one end, coils being marked near the outside end, with AMS4520L, lot number, manufacturers identification, and nominal thickness, using
21、any suitable marking fluid. As an alternate method, individual pieces or bundles shall have attached a durable tag marked with the above information or shall be boxed and the box marked with the same information. 5.1.2 When specified by purchaser, each strip shall be legibly marked on one face, in t
22、he respective location indicated below, with AMS4520L, lot number, manufacturers identification, and nominal thickness. The characters shall be applied using a suitable marking fluid removable in hot alkaline cleaning solution without rubbing. The markings shall have no deleterious effect on the str
23、ip or its performance and shall be sufficiently stable to withstand normal handling. The specification number, manufacturers identification, and nominal thickness shall be continuously line marked; the lot number may be included in the line marking or may be marked at one location on each piece. 5.1
24、.2.1 Flat Strip 6 Inches (152 mm) and Under in Width Shall be marked in one or more lengthwise rows of characters recurring at intervals not greater than 3 feet (914 mm). SAE INTERNATIONAL AMS4520L Page 4 of 5 5.1.2.2 Flat Strip Over 6 Inches (152 mm) in Width Shall be marked in lengthwise rows of c
25、haracters recurring at intervals not greater than 3 feet (914 mm), the rows being spaced not more than 6 inches (152 mm) apart and alternately staggered. 5.1.2.3 Coiled Strip Shall be marked near both the outside and inside ends of the coil; the markings shall be applied as in 5.1.2 or shall appear
26、on a durable tag or label attached to the coil and marked with the information of 5.1.2. When the strip is wound on cores, the tag or label may be attached to the core. 5.2 Packaging Strip shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules a
27、nd regulations pertaining to the handling, packaging, and transportation of the strip to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall include this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Str
28、ip not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 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 pr
29、evious issue of this document. 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 Hardness should be as indi
30、cated in Table 2, determined in accordance with ASTM E18. Hardness has been used to verify that product is properly processed, but an out-of-specification hardness number is not always indicative of product with out-of-specification tensile strength. Table 2 - Hardness Nominal Thickness Inch Nominal
31、 Thickness Millimeters Approximate Hardness Over 0.010 to 0.029, incl Over 0.25 to 0.74, incl 52-71 HR30T Over 0.020 to 0.039, incl Over 0.50 to 0.99, incl 53-78 HRB Over 0.029 Over 0.74 57-73 HR30T Over 0.039 Over 0.99 60-81 HRB 8.2.1 Further analysis including material composition verification, he
32、at treat process parameter review, and/or tensile property measurement of product with out of range hardness may be necessary. 8.3 Copper temper designations are defined in ASTM B601. 8.4 Terms used in AMS are clarified in ARP1917. SAE INTERNATIONAL AMS4520L Page 5 of 5 8.5 Dimensions and properties
33、 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. 8.6 Purchase documents should specify not less than the following: AMS4520L Size of strip required Quantity of strip required. 8.7 Similar Specifications ASTM B103/B103M is listed for information only and shall not be construed as an acceptable alternate unless all requirements of this AMS are met. PREPARED BY AMS COMMITTEE “D”
