1、AWS A5.29/A5.29M:2010An American National StandardSpecification forLow-Alloy SteelElectrodes forFlux Cored ArcWelding550 N.W. LeJeune Road, Miami, FL 33126AWS A5.29/A5.29M:2010An American National StandardApproved by theAmerican National Standards InstituteSeptember 18, 2009Specification forLow-Allo
2、y Steel Electrodesfor Flux Cored Arc Welding4th EditionSupersedes AWS A5.29/A5.29M:2005Prepared 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 specifi
3、cation prescribes the requirements for classification of low-alloy steel electrodes for flux cored arc welding.The requirements include chemical composition and mechanical properties of the weld metal and certain usabilitycharacteristics. Optional, supplemental designators are also included for impr
4、oved toughness and diffusible hydrogen.Additional requirements are included for standard sizes, marking, manufacturing, and packaging. A guide is appended tothe specification as a source of information concerning the classification system employed and the intended use of low-alloy steel flux cored e
5、lectrodes.This specification makes use of both U.S. Customary Units and the International System of Units (SI). Since these arenot equivalent, each system must be used independently of the other.AWS A5.29/A5.29M:2010iiInternational Standard Book Number: 978-0-87171-766-5American Welding Society550 N
6、.W. LeJeune Road, Miami, FL 33126 2010 by American Welding SocietyAll rights reservedPrinted in the United States of AmericaPhotocopy Rights. No portion of this standard may be reproduced, stored in a retrieval system, or transmitted in anyform, including mechanical, photocopying, recording, or othe
7、rwise, without the prior written permission of the copyrightowner.Authorization to photocopy items for internal, personal, or educational classroom use only or the internal, personal, oreducational classroom use only of specific clients is granted by the American Welding Society provided that the ap
8、propriatefee is paid to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 750-8400; Internet:.iiiAWS A5.29/A5.29M:2010Statement on the Use of American Welding Society StandardsAll standards (codes, specifications, recommended practices, methods, classifications, and g
9、uides) of the AmericanWelding Society (AWS) are voluntary consensus standards that have been developed in accordance with the rules of theAmerican National Standards Institute (ANSI). When AWS American National Standards are either incorporated in, ormade part of, documents that are included in fede
10、ral or state laws and regulations, or the regulations of other govern-mental bodies, their provisions carry the full legal authority of the statute. In such cases, any changes in those AWSstandards must be approved by the governmental body having statutory jurisdiction before they can become a part
11、ofthose laws and regulations. In all cases, these standards carry the full legal authority of the contract or other documentthat invokes the AWS standards. Where this contractual relationship exists, changes in or deviations from requirementsof an AWS standard must be by agreement between the contra
12、cting parties.AWS American National Standards are developed through a consensus standards development process that bringstogether volunteers representing varied viewpoints and interests to achieve consensus. While the AWS administers theprocess and establishes rules to promote fairness in the develo
13、pment 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 disclaims liability for any injury to persons or to property, or other damages of any nature whatsoever, whetherspecial, indirect,
14、 consequential, or compensatory, directly or indirectly resulting from the publication, use of, or relianceon this standard. AWS also makes no guarantee or warranty as to the accuracy or completeness of any informationpublished herein.In issuing and making this standard available, AWS is neither und
15、ertaking 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 someoneelse. Anyone using these documents should rely on his or her own independent judgment or, as appropriate, seek theadvice of a c
16、ompetent professional in determining the exercise of reasonable care in any given circumstances. It isassumed that the use of this standard and its provisions are entrusted to appropriately qualified and competent personnel.This standard may be superseded by the issuance of new editions. Users shoul
17、d ensure that they have the latest edition.Publication of this standard does not authorize infringement of any patent or trade name. Users of this standard acceptany and all liabilities for infringement of any patent or trade name items. AWS disclaims liability for the infringement ofany patent or p
18、roduct trade name resulting from the use of this standard.Finally, the AWS does not monitor, police, or enforce compliance with this standard, nor does it have the power to do so.On occasion, text, tables, or figures are printed incorrectly, constituting errata. Such errata, when discovered, are pos
19、tedon 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, inwriting, to the appropriate technical committee. Such requests should be addressed to the American Welding Society,Attention: Managing Dire
20、ctor, Technical Services Division, 550 N.W. LeJeune Road, Miami, FL 33126 (see Annex B).With regard to technical inquiries made concerning AWS standards, oral opinions on AWS standards may be rendered.These opinions are offered solely as a convenience to users of this standard, and they do not const
21、itute professionaladvice. Such opinions represent only the personal opinions of the particular individuals giving them. These individuals donot speak on behalf of AWS, nor do these oral opinions constitute official or unofficial opinions or interpretations ofAWS. In addition, oral opinions are infor
22、mal 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 Allied Materials. It mustbe reviewed every five years, and if not revised, it must be either reaffirmed or withdrawn. Comments (reco
23、mmenda-tions, additions, or deletions) and any pertinent data that may be of use in improving this standard are requiredand should be addressed to AWS Headquarters. Such comments will receive careful consideration by the AWS A5Committee on Filler Metals and Allied Materials and the author of the com
24、ments will be informed of the Committeesresponse to the comments. Guests are invited to attend all meetings of the AWS A5 Committee on Filler Metals andAllied Materials to express their comments verbally. Procedures for appeal of an adverse decision concerning all suchcomments are provided in the Ru
25、les of Operation of the Technical Activities Committee. A copy of these Rules can beobtained from the American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.This page is intentionally blank.ivAWS A5.29/A5.29M:2010vAWS A5.29/A5.29M:2010PersonnelAWS A5 Committee on Filler Metals and Allied M
26、aterialsJ. S. Lee, Chair ChevronH. D. Wehr, 1st Vice Chair Arcos Industries, LLCJ. J. DeLoach Jr., 2nd Vice Chair Naval Surface Warfare CenterR. K. Gupta, Secretary American Welding SocietyT. Anderson ESAB Welding and Cutting ProductsJ. M. Blackburn Naval Sea Systems CommandJ. C. Bundy Hobart Brothe
27、rs CompanyD. D. Crockett Consultant, The Lincoln Electric CompanyR. V. Decker WeldstarD. A. DelSignore ConsultantJ. DeVito ESAB Welding and Cutting ProductsH. W. Ebert Consulting Welding EngineerD. M. Fedor The Lincoln Electric CompanyJ. G. Feldstein Foster Wheeler North AmericaS. E. Ferree ESAB Wel
28、ding and Cutting ProductsD. A. Fink The Lincoln Electric CompanyG. L. Franke Naval Surface Warfare CenterR. D. Fuchs Bhler Welding Group USA, IncorporatedR. M. Henson J. W. Harris Company, IncorporatedS. D. Kiser Special MetalsP. J. Konkol Concurrent Technologies CorporationD. J. Kotecki Damian Kote
29、cki Welding ConsultantsL. G. Kvidahl Northrop Grumman ShipbuildingA. Y. Lau Canadian Welding BureauW. A. Marttila ConsultantT. Melfi The Lincoln Electric CompanyR. Menon Stoody CompanyM. T. Merlo HyperTech Research, IncorporatedB. Mosier Polymet CorporationA. K. Mukherjee Siemens Power Generation, I
30、ncorporatedC. L. Null ConsultantK. C. Pruden Hydril CompanyS. D. Reynolds, Jr. ConsultantP. K. Salvesen Det Norske Veritas (DNV)K. Sampath ConsultantW. S. Severance ESAB Welding and Cutting ProductsM. J. Sullivan NASSCONational Steel therefore, each system must be used inde-pendently of the other, w
31、ithout combining values in any way. In selecting rational metric units, AWS A1.1, Metric Prac-tice Guide for the Welding Industry, and ISO 554, Welding consumablesTechnical delivery conditions for welding fillermaterialsType of product, dimensions, tolerances, and markings, are used where suitable.
32、Tables and figures make useof both U.S. Customary and SI Units, which, with the application of the specified tolerances, provides for interchange-ability of products in both the U.S. Customary and SI Units.This is the third revision of A5.29 that was issued initially in 1980. In this revision, the q
33、uantity of “Mn + Ni” has beencorrected from 1.5% to 1.50% in Note “d” of Table 7.Historical BackgroundANSI/AWS A5.29-80 Specification for Low-Alloy Steel Electrodes for Flux Cored Are WeldingANSI/AWS A5.29:1998 Specification for Low-Alloy Steel Electrodes for Flux Cored Arc WeldingAWS A5.29/A5.29M:2
34、005 Specification for Low-Alloy Steel Electrodes for Flux Cored Arc WeldingComments and suggestions for the improvement of this standard are welcome. 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
35、 33126.This page is intentionally blank.viiiAWS A5.29/A5.29M:2010ixAWS A5.29/A5.29M:2010Table of ContentsPage No.Personnel iiiForeword.viiList of Tables.xList of Figures.x1. Scope.12. Normative References .13. Classification24. Acceptance .55. Certification .56. Rounding-Off Procedure 57. Summary of
36、 Tests 108. Retest 109. Test Assemblies 1110. Chemical Analysis .1711. Radiographic Test1712. Tension Test2013. Impact Test.2014. Fillet Weld Test 2115. Diffusible Hydrogen Test 2116. Method of Manufacture2317. Standard Sizes .2318. Finish and Uniformity.2319. Standard Package Forms2620. Winding Req
37、uirements .2621. Electrode Identification.2722. Packaging .2823. Marking of Packages.29Annex A (Informative)Guide to AWS Specification for Low-Alloy Steel Electrodes for Flux CoredAnnex A (Informative)Arc Welding.31Annex B (Informative)Guidelines for Preparation of Technical Inquiries for AWS Techni
38、cal Committees.45AWS Filler Metal Specifications by Material and Welding Process 47AWS Filler Metal Specifications and Related Documents.49xAWS A5.29/A5.29M:2010List of TablesTable Page No.1U A5.29 Mechanical Property Requirements 31M A5.29M Mechanical Property Requirements.72 Electrode Usability Re
39、quirements .93 Tests Required for Classification .104 Base Metal for Test Assemblies.145 Heat Input Requirements and Suggested Pass and Layer Sequence for Multiple Pass ElectrodeClassifications 156 Preheat, Interpass, and PWHT Temperatures 167 Weld Metal Chemical Composition Requirements for Classif
40、ication to A5.29/A5.29M188 Dimensional Requirements for Fillet Weld Usability Test Specimens229 Diffusible Hydrogen Limits for Weld Metal2510 Standard Sizes and Tolerances of Electrodes.2511 Packaging Requirements26A.1 Comparison of Approximate Equivalent Classifications for ISO/DIS 17632 .34A.2 Com
41、parison of Approximate Equivalent Classifications for ISO/DIS 17634 .35A.3 Comparison of Approximate Equivalent Classifications for ISO/DIS 18276 .36List of FiguresFigure Page No.1 A5.29/A5.29M Classification System62 Pad for Chemical Analysis of Deposited Weld Metal113 Test Assembly for Mechanical
42、Properties and Soundness of Weld Metal.124 Fillet Weld Test Assembly .135 Dimensions of Fillet Welds226 Alternate Methods for Facilitating Fillet Weld Fracture237 Radiographic Standards for Test Assembly in Figure 3.248 Standard SpoolsDimensions of 4, 8, 12, and 14 in 100, 200, 300, and 350 mm Spool
43、s.279 Standard SpoolsDimensions of 22, 24, and 30 in 560, 610, and 760 mm Spools.28AWS A5.29/A5.29M:201011. Scope1.1 This specification prescribes requirements for the classification of low-alloy steel electrodes for flux cored arcwelding (FCAW) either with or without shielding gas. Iron is the only
44、 element whose content exceeds 10.5 percent inundiluted weld metal deposited by these electrodes. Metal cored low-alloy steel electrodes are not classified under thisspecification but are classified according to AWS A5.28/A5.28M.11.2 Safety and health issues and concerns are beyond the scope of this
45、 standard and, therefore, are not fully addressedherein. Some safety and health information can be found in the nonmandatory Annex Sections A5 and A9. Safety andhealth information is available from other sources, including, but not limited to, ANSI Z49.12and applicable federal andstate regulations.1
46、.3 This specification makes use of both U.S. Customary Units and the International System of Units (SI). The measure-ments are not exact equivalents; therefore, each system must be used independently of the other without combining inany way when referring to weld metal properties. The specification
47、with the designation A5.29 uses U.S. CustomaryUnits. The specification A5.29M uses SI Units. The latter are shown within brackets ( ) or in appropriate columns intables and figures. Standard dimensions based on either system may be used for the sizing of electrodes or packaging orboth under the A5.2
48、9 and A5.29M specifications.2. Normative ReferencesThe following standards contain provisions which, through reference in this text, constitute provisions of this AWS stan-dard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However,parties t
49、o agreement based on this AWS standard are encouraged to investigate the possibility of applying the mostrecent editions of the documents shown below. For undated references, the latest edition of the standard referred toapplies.2.1 The following AWS standards are referenced in the mandatory sections of this document:(1) AWS A4.3, Standard Methods for Determination of the Diffusible Hydrogen Content of Martensitic, Bainitic,and Ferritic Steel Weld Metal Produced by Arc Welding(2) AWS A5.01, Filler Metal Procurement Guidelines(3) AWS A5.32/A5.32M, Specification for Welding Shie
