1、AEROSPACEMATERIAL SPECIFICATIONAMS4555 REV. KIssued 1941-09Reaffirmed 2006-04Revised 2015-01Superseding AMS4555JLeaded Brass, Seamless Tubing66.5Cu - 32.5Zn - 0.48PbLight Annealed (O50)UNS C33000RATIONALEAMS4555K revises the Title, and Composition (3.1.3) and is a Five Year Review and update of this
2、 specification.1. SCOPE1.1 FormThis specification covers a copper alloy (leaded brass) in the form of seamless tubing.1.2 ApplicationThis tubing has been used typically for parts requiring moderate strength and fair ductility, but usage is not limited to such applications.2. APPLICABLE DOCUMENTSThe
3、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 has been cancelled
4、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 724-776-4970 (outside USA), www.sae.org.AMS2223
5、Tolerances, Copper and Copper Alloy Seamless Tubing_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 us
6、e, including 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 Inte
7、rnationalAll 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: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS4555KSAE INTERNATIONAL AMS4555K Page 2
9、of 52.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM B 154 Mercurous Nitrate Test for Copper and Copper AlloysASTM B 251 General Requirements for Wrought Seamless Copper and CopperAllo
10、y TubeASTM B 251M General Requirements for Wrought Seamless Copper and CopperAlloy Tube (Metric)ASTM B 858 Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper AlloysASTM E 8/ E 8M Tension Testing of Metallic MaterialsASTM E 18 Rockwell Hardness of Metallic Materi
11、alsASTM E 112 Determining Average Grain SizeASTM E 478 Chemical Analysis of Copper Alloys3. TECHNICAL REQUIREMENTS3.1 CompositionShall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 478, by spectrochemical methods, or by other anal
12、ytical methods acceptable to purchaser.TABLE 1 - CompositionElement (3.1.2) min maxCopperLead (3.1.1)IronZincSum of Named Elements (3.1.4)65.00.25-99.668.00.70.7(See 3.1.3)-3.1.1 For tubing over 5 inches (127 mm) in OD, lead may be less than 0.25%.3.1.2 These composition limits do not preclude the p
13、resence of other elements. Limits may be established and analysis required for unnamed elements by agreement between the manufacturer or supplier and purchaser.3.1.3 Zinc may be reported as “remainder”, or as the difference between the sum of results for all analyzed elements and 100%, or as the res
14、ult of direct analysis.3.1.4 When all named elements in Table 1 are analyzed, the sum shall be 99.6% minimum, but such determination is not required for routine acceptance of each lot.3.2 ConditionIn light annealed (O50) temper (See 8.2). Tubing shall be either bright-annealed or acid-cleaned after
15、final annealing operation.3.3 FabricationTubing shall be produced by a seamless process. The external and internal surface finishes shall be produced by any method which will result in surfaces free from laps, folds, tears, and extraneous materials and which show no oxide discoloration. Processing s
16、hall not affect limits of wall thickness or corrosion resistance.SAE INTERNATIONAL AMS4555K Page 3 of 53.4 PropertiesTubing shall conform to the following requirements:3.4.1 Tensile PropertiesShall be as shown in Table 2, determined in accordance with ASTM E 8/E 8M:TABLE 2 - Minimum Tensile Properti
17、esProperty ValueTensile StrengthElongation in 2 Inches (50.8 mm)44.0 ksi (303 MPa)35%3.4.2 Average Grain SizeGrain size shall be not larger than 0.035 mm, determined in accordance with ASTM E 112.3.4.3 HardnessShall be as shown in Table 3, or equivalent, determined in accordance with ASTM E 18, but
18、tubing shall not be rejected on the basis of hardness if the tensile property and grain size requirements are met.TABLE 3 - Maximum HardnessNominal WallThicknessInchNominal WallThicknessMillimeter HardnessUp to 0.030, inclOver 0.030Up to 0.76, inclOver 0.7660 HRB90 HRF3.4.4 FlarabilityTubing shall w
19、ithstand flaring at room temperature, without formation of cracks or other visible defects, by being forced axially with steady pressure over a hardened and polished tapered steel pin having a 74 degree included angle to produce a flare having a permanent expanded OD not less than specified in Table
20、 4.TABLE 4 - Flaring ParametersNominal ODInchesNominal ODMillimetersPermanentExpanded ODUp to 0.750, inclOver 0.750 to 4.000, inclUp to 19.05, inclOver 19.05 to 101.60, incl1.20 X nominal OD1.15 X nominal OD3.4.5 EmbrittlementSpecimens of tubing, approximately 6 inches (152 mm) in length, shall with
21、stand, without cracking, immersion in mercurous nitrate in accordance with ASTM B 154, Procedure A, or the Ammonia Vapor Test in accordance with ASTM B 858.3.5 QualityTubing, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfec
22、tions detrimental to usage of the tubing.SAE INTERNATIONAL AMS4555K Page 4 of 53.6 TolerancesShall conform to AMS2223 as applicable to nonrefractory alloys.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe vendor of tubing shall supply all samples for vendors tests and shall be res
23、ponsible for the performance of all requiredtests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the tubing conforms to specified requirements.4.2 Classification of Tests4.2.1 Acceptance TestsComposition (3.1), tensile properties (3.4.
24、1), average grain size (3.4.2), hardness (3.4.3), flarability (3.4.4), and tolerances (3.6) are acceptance tests and shall be performed on each lot.4.2.2 Periodic TestsEmbrittlement (3.4.5) is a periodic test and shall be performed at a frequency selected by the vendor unless frequency of testing is
25、 specified by purchaser.4.3 Sampling and TestingShall be in accordance with ASTM B 251 or ASTM B 251M and the following:4.3.1 Specimens for flarability test (3.4.4) shall be full tubes or sections cut from a tube. The end of the specimen to be flared shall be cut square, with the cut end smooth and
26、free from burrs, but not rounded.4.4 ReportsThe vendor of tubing shall furnish with each shipment a report showing the results of tests for chemical composition, tensile properties, average grain size, hardness, and flarability of each lot, and stating that the tubing conforms to the other technical
27、 requirements. This report shall include the purchase order number, lot number, AMS4555K, nominal size, and quantity.4.5 Resampling and RetestingIf any specimen used in the above tests fails to meet the specified requirements, disposition of the tubing may be based onthe results of testing three add
28、itional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the tubing represented. Results of all tests shall be reported.5. PREPARATION FOR DELIVERY5.1 IdentificationIndividual tubes or bundles shall
29、have attached a durable tag legibly marked with not less than the purchase order number, AMS4555K, lot number, and nominal size or shall be boxed and the box marked with the same information.5.2 PackagingTubing shall be prepared for shipment in accordance with commercial practice and in compliance w
30、ith applicable rules and regulations pertaining to the handling, packaging, and transportation of the tubing to ensure carrier acceptance and safe delivery.SAE INTERNATIONAL AMS4555K Page 5 of 56. ACKNOWLEDGMENTA vendor shall include this specification number and its revision letter in all quotation
31、s and when acknowledging purchase orders.7. REJECTIONSTubing not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.8. NOTES8.1 A change bar (|) located in the left margin is for the convenience of the user in locating areas where technical re
32、visions, 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 of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contai
33、n editorial changes only.8.2 Copper temper designations are defined in ASTM B 601.8.3 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
34、 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:AMS4555KSize of tubing requiredQuantity of tubingrequired.8.6 Similar SpecificationsFederal WWT791, Grade B, ASTM B135 (C33000) and MILT46072, Alloy C33000, are listed for information only and shall not be construed as acceptable alternates unless all requirements of this AMS are met.PREPARED BY AMS COMMITTEE “D“
