1、Specification forFiller Metals forBrazing andBraze WeldingAWS A5.8M/A5.8:2011An American National StandardAWS A5.8M/A5.8:2011An American National StandardApproved by theAmerican National Standards InstituteJune 17, 2011Specification for Filler Metals for Brazing and Braze Welding10th EditionSupersed
2、es AWS A5.8/A5.8M:2004Prepared by theAmerican Welding Society (AWS) A5 Committee on Filler Metals and Allied MaterialsUnder the Direction of theAWS Technical Activities CommitteeApproved by theAWS Board of DirectorsAbstractThis specification prescribes the requirements for the classification of braz
3、ing filler metals for brazing and braze welding.The chemical composition, physical form, and packaging of more than 120 brazing filler metals are specified. The brazingfiller metal groups described include aluminum, cobalt, copper, gold, magnesium, nickel, silver, titanium, and brazing fillermetals
4、for vacuum service. Information is provided concerning the liquidus, the solidus, the brazing temperature range, and general areas of application recommended for each brazing filler metal. Additional requirements are included for manufacture, sizes, lengths, and packaging. A guide is appended to the
5、 specification as a source of information concerningthe classification system employed and the intended use of the brazing filler metals for brazing and braze welding.This specification makes use of both the International System of Units (SI) and U.S. Customary Units. Since these are notequivalent,
6、each must be used independently of the other.International Standard Book Number: 978-0-87171-790-0American Welding Society550 N.W. LeJeune Road, Miami, FL 33126 2011 by American Welding SocietyAll rights reservedPrinted in the United States of AmericaPhotocopy Rights. No portion of this standard may
7、 be reproduced, stored in a retrieval system, or transmitted in anyform, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyrightowner.Authorization to photocopy items for internal, personal, or educational classroom use only or the internal,
8、 personal, or educational classroom use only of specific clients is granted by the American Welding Society provided that the appropriate fee is paid to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 750-8400;Internet: .AWS A5.8M/A5.8:2011iiStatement on the Use of
9、American Welding Society StandardsAll standards (codes, specifications, recommended practices, methods, classifications, and guides) of the AmericanWelding Society (AWS) are voluntary consensus standards that have been developed in accordance with the rules of theAmerican National Standards Institut
10、e (ANSI). When AWS American National Standards are either incorporated in, ormade part of, documents that are included in federal or state laws and regulations, or the regulations of other governmen-tal bodies, their provisions carry the full legal authority of the statute. In such cases, any change
11、s in those AWS standardsmust be approved by the governmental body having statutory jurisdiction before they can become a part of those laws andregulations. In all cases, these standards carry the full legal authority of the contract or other document that invokes theAWS standards. Where this contrac
12、tual relationship exists, changes in or deviations from requirements of an AWS stan-dard must be by agreement between the contracting parties.AWS American National Standards are developed through a consensus standards development process that bringstogether volunteers representing varied viewpoints
13、and interests to achieve consensus. While the AWS administers theprocess and establishes rules to promote fairness in the development of consensus, it does not independently test, evalu-ate, or verify the accuracy of any information or the soundness of any judgments contained in its standards.AWS di
14、sclaims liability for any injury to persons or to property, or other damages of any nature whatsoever, whether spe-cial, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance on thisstandard. AWS also makes no guarantee or warranty as to
15、 the accuracy or completeness of any information published herein.In issuing and making this standard available, AWS is neither undertaking to render professional or other services for oron behalf of any person or entity, nor is AWS undertaking to perform any duty owed by any person or entity to som
16、eoneelse. Anyone using these documents should rely on his or her own independent judgment or, as appropriate, seek theadvice of a competent professional in determining the exercise of reasonable care in any given circumstances. It isassumed that the use of this standard and its provisions are entrus
17、ted to appropriately qualified and competent personnel.This standard may be superseded by the issuance of new editions. This standard may also be corrected through publica-tion of amendments or errata. It may also be supplemented by publication of addenda. Information on the latest editionsof AWS st
18、andards including amendments, errata, and addenda are posted on the AWS web page (www.aws.org). Usersshould ensure that they have the latest edition, amendments, errata, and addenda.Publication of this standard does not authorize infringement of any patent or trade name. Users of this standard accep
19、t anyand all liabilities for infringement of any patent or trade name items. AWS disclaims liability for the infringement of anypatent or product trade name resulting from the use of this standard.The AWS does not monitor, police, or enforce compliance with this standard, nor does it have the power
20、to do so.On occasion, text, tables, or figures are printed incorrectly, constituting errata. Such errata, when discovered, are postedon the AWS web page (www.aws.org).Official interpretations of any of the technical requirements of this standard may only be obtained by sending a request,in writing,
21、to the appropriate technical committee. Such requests should be addressed to the American Welding Society,Attention: Managing Director, Technical Services Division, 550 N.W. LeJeune Road, Miami, FL 33126 (see Annex D).With regard to technical inquiries made concerning AWS standards, oral opinions on
22、 AWS standards may be rendered.These opinions are offered solely as a convenience to users of this standard, and they do not constitute professionaladvice. Such opinions represent only the personal opinions of the particular individuals giving them. These individualsdo not speak on behalf of AWS, no
23、r do these oral opinions constitute official or unofficial opinions or interpretations ofAWS. In addition, oral opinions are informal and should not be used as a substitute for an official interpretation.This standard is subject to revision at any time by the AWS A5 Committee on Filler Metals and Al
24、lied Materials. It mustbe reviewed every five years, and if not revised, it must be either reaffirmed or withdrawn. Comments (recommendations,additions, or deletions) and any pertinent data that may be of use in improving this standard are required and should beaddressed to AWS Headquarters. Such co
25、mments will receive careful consideration by the AWS A5 Committee on FillerMetals and Allied Materials and the author of the comments will be informed of the Committees response to the com-ments. Guests are invited to attend all meetings of the AWS A5 Committee on Filler Metals and Allied Materials
26、toexpress their comments verbally. Procedures for appeal of an adverse decision concerning all such comments are pro-vided in the Rules of Operation of the Technical Activities Committee. A copy of these Rules can be obtained from theAmerican Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.A
27、WS A5.8M/A5.8:2011iiiAWS A5.8M/A5.8:2011ivThis page is intentionally blank.PersonnelAWS A5 Committee on Filler Metals and Allied MaterialsH. D. Wehr, Chair Arcos Industries LLCJ. J. DeLoach, Jr., 1st Vice Chair Naval Surface Warfare CenterR. D. Fuchs, 2nd Vice Chair Bohler Welding Group USA, Incorpo
28、ratedR. Gupta, Secretary American Welding SocietyT. Anderson Miller Electric Manufacturing CompanyJ. M. Blackburn Naval Sea Systems CommandJ. C. Bundy Hobart Brothers CompanyD. D. Crockett ConsultantR. V. Decker WeldstarD. A. Del Signore ConsultantJ. DeVito ESAB Welding and Cutting ProductsH. W. Ebe
29、rt ConsultantD. M. Fedor The Lincoln Electric CompanyJ. G. Feldstein Foster Wheeler North AmericaS. E. Ferree ESAB Welding and Cutting ProductsD. A. Fink The Lincoln Electric CompanyG. L. Franke Naval Surface Warfare CenterR. M. Henson Harris Products GroupS. D. Kiser Special Metals Welding Products
30、 CompanyP. J. Konkol Concurrent Technologies CorporationD. J. Kotecki Damian Kotecki Welding ConsultantsL. G. Kvidahl Ingalls ShipbuildingA. Y. Lau Canadian Welding BureauJ. S. Lee ChevronT. Melfi The Lincoln Electric CompanyK. M. Merlo Edison Welding InstituteM. T. Merlo RevWires LLCB. Mosier Polym
31、et CorporationA. K. Mukherjee Siemens Power Generation, IncorporatedT. C. Myers Oceaneering Intervention EngineeringC. L. Null ConsultantB. A. Pletcher CB therefore, each system must beused independently of the other without combining values in any way. In selecting rational metric units, AWS A1.1,M
32、etric Practice Guide for the Welding Industry, and International Standard ISO 544, Welding ConsumablesTechnicalDelivery Conditions for Welding Filler MaterialsType of Product, Dimensions, Tolerances, and Markings, are usedwhere suitable. Tables and figures make use of both SI Units and U.S. Customar
33、y Units, which with the application ofthe specified tolerances provides for interchangeability of products in both the SI Units and U.S. Customary Units.The current document is the tenth revision of the initial joint ASTM/AWS document issued in 1952. The practice of issu-ing filler metal specificati
34、ons as joint AWS/ASTM documents was discontinued shortly after the original version of thisspecification was issued. The 1969 revision and all subsequent versions, developed and published by AWS, have beencertified by the American National Standards Institute (ANSI). The evolution of AWS A5.8M/A5.8,
35、 Specification forFiller Metals for Brazing and Braze Welding, is shown below:ASTM B260-52T, AWS A5.8-52T Tentative Specification for Brazing Filler Metal;ASTM B260-56T, AWS A5.8-56T Tentative Specification for Brazing Filler Metal;AWS A5.8-62T, ASTM B260-62T Tentative Specification for Brazing Fill
36、er Metal;AWS A5.8-69, Specification for Brazing Filler Metal;ANSI/AWS A5.8-76, Specification for Brazing Filler Metal;ANSI/AWS A5.8-81, Specification for Brazing Filler Metal;ANSI/AWS A5.8-89, Specification for Filler Metals for Brazing;ANSI/AWS A5.8-92, Specification for Filler Metals for Brazing a
37、nd Braze Welding; andAWS A5.8/A5.8M:2004, Specification for Filler Metals for Brazing and Braze Welding.The present edition, which supersedes AWS A5.8/A5.8M:2004, includes the following updates:(1) Seven new brazing filler metals: BTi-1, BTi-2, BTi-3, BTi-4, BTi-5, BCuP-10, and BNi-14(2) The chemica
38、l composition range of zinc (Zn) for brazing filler metal BAg-33 is now 26.528.5(3) The International System of Units (SI) is used as the primary unit of measurement(4) All substantive updates within this document are italicized.Comments and suggestions for the improvement of this standard are welco
39、me. They should be sent to the Secretary,AWS A5 Committee on Filler Metals and Allied Materials, American Welding Society, 550 N.W. LeJeune Road, Miami,FL 33126.AWS A5.8M/A5.8:2011viiAWS A5.8M/A5.8:2011viiiThis page is intentionally blank.Table of ContentsPage No.Personnel . . . . . . . . . . . . .
40、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vForeword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41、. . . . . . . . . viiList of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xList of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x1. General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12. Normative References . . . . . . . . . . . . . . . . . . . .
43、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13. Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24. Acceptance. . . . . . . . .
44、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25. Certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45、 . . . . 36. Rounding-Off Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37. Summary of Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46、. . . . . . . . . . . . . . . . 38. Retest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39. Chemical Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310. Sieve Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511. Melt Cleanliness Test . . . . . . . . . . . . . . . .
48、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512. Spatter Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613. Binder Content of
49、 Transfer Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1214. Method of Manufacture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1315. Standard Forms, Sizes, and Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1316. Brazing Filler Metal Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
