1、AWS A5.3/A5.3M:1999 (R2007)An American National StandardSpecification forAluminum andAluminum-AlloyElectrodes forShielded MetalArc Welding550 N.W. LeJeune Road, Miami, FL 33126AWS A5.3/A5.3M:1999 (R2007)An American National StandardApproved by theAmerican National Standards InstituteFebruary 11, 199
2、9Specification forAluminum and Aluminum-AlloyElectrodes for ShieldedMetal Arc WeldingSupersedes ANSI/AWS A5.3-91Prepared by theAmerican Welding Society (AWS) A5 Committee on Filler Metals and Allied MaterialsUnder the Direction of theAWS Technical Activities CommitteeApproved by theAWS Board of Dire
3、ctorsAbstractThis specification prescribes requirements for the classification of covered (flux coated) E1100, E3003, and E4043aluminum-alloy electrodes for shielded metal arc welding. Tests conducted for classification are chemical analysis of thecore wire as well as tensile and bend tests from gro
4、ove weld test assemblies fabricated with each of two sizes of electrodefor each classification. Standard electrode sizes, electrode identification, and chemical composition limits are specified.This specification makes use of both U.S. Customary Units and the International System of Units (SI). Sinc
5、e these arenot equivalent, each system must be used independently of the other.Key WordsCovered aluminum electrodes, aluminum welding electrodes, shielded metal arc welding, filler metal specificationsiiAWS A5.3/A5.3M:1999 (R2007)International Standard Book Number: 0-87171-561-9American Welding Soci
6、ety550 N.W. LeJeune Road, Miami, FL 33126 1999 by American Welding SocietyAll rights reservedPrinted in the United States of AmericaReaffirmed: February 21, 2007Photocopy Rights. No portion of this standard may be reproduced, stored in a retrieval system, or transmitted in anyform, including mechani
7、cal, 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, personal, oreducational classroom use only of specific clients is granted by the American
8、 Welding Society provided that the appropriatefee is paid to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 750-8400; Internet:.iiiAWS A5.3/A5.3M:1999 (R2007)Statement on the Use of American Welding Society StandardsAll standards (codes, specifications, recommended
9、 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 Institute (ANSI). When AWS American National Standards are either incorporated in, ormade p
10、art of, documents that are included in federal 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
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19、s of this standard may only be obtained by sending a request,in writing, 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 B).With rega
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21、dividuals giving them. These individualsdo not speak on behalf of AWS, nor 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 subjec
22、t 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 (recommendations,additions, or deletions) and any pertinent data that may be of use in improving this
23、standard are required and should beaddressed to AWS Headquarters. Such comments will receive careful consideration by the AWS A5 Committee onFiller Metals and Allied Materials and the author of the comments will be informed of the Committees response to thecomments. Guests are invited to attend all
24、meetings of the AWS A5 Committee on Filler Metals and Allied Materials toexpress their comments verbally. Procedures for appeal of an adverse decision concerning all such comments areprovided in the Rules of Operation of the Technical Activities Committee. A copy of these Rules can be obtained fromt
25、he American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.This page is intentionally blank.ivAWS A5.3/A5.3M:1999 (R2007)vAWS A5.3/A5.3M:1999 (R2007)Personnel (Reaffirmation)AWS A5 Committee on Filler Metals and Allied MaterialsD. A. Fink, Chair The Lincoln Electric CompanyJ. S. Lee, 1st Vi
26、ce Chair CB therefore, eachsystem must be used independently of the other withoutcombining in any way. The specification with the desig-nation A5.3 uses U.S. Customary Units. The specifica-tion A5.3M uses SI Units. The latter are shown inappropriate columns in tables or within brackets whenused in t
27、he text.6.2 For the purpose of determining conformance withthis specification, an observed or calculated value shallbe rounded to the nearest 1000 psi 10 MPa for tensilestrength, and to the “nearest unit” in the last right-handplace of figures used in expressing the limiting value forother quantitie
28、s in accordance with the rounding-offmethod given in ASTM E 29, Practice for Using Signifi-cant Digits in Test Data to Determine Conformance withSpecifications.5See Section A4, Certification (in Annex A) for further infor-mation concerning certification and the testing called for tomeet this require
29、ment.Part BTests, Procedures, and Requirements7. Summary of TestsThe tests required for each classification are specifiedin Table 2. The purpose of these tests is to determine thechemical composition of the core wire and the mechani-cal properties of the weldment. The base metal for theweld test ass
30、emblies, the welding and testing proceduresto be employed, and the results required are given in Sec-tions 9 through 12.8. Retest8.1 If the results of any test fail to meet the requirement,that test shall be repeated twice. The results of both testsshall meet the requirement. Specimens or samples fo
31、r re-test may be taken from the original test assembly or sam-ple, or from a new test assembly or sample. For chemicalanalysis, retest need be only for those specific elementsthat failed to meet the test requirement.8.2 If the results of one or both retests fail to meet the re-quirement, the materia
32、l under test shall be considered asnot meeting the requirements of this specification for thatclassification.Table 1Chemical Composition Requirements for Core WireAWS ClassificationfUNS DesignationcWeight Percenta,bSi Fe Cu Mn Mg Zn Ti BeOther ElementsAlEach TotalE1100 A91100 (d) (d) 0.050.20 0.05 0
33、.10 0.0008 0.05 0.15 99.00 mineE3003 A93003 0.6 0.7 0.050.20 1.01.5 0.10 0.0008 0.05 0.15 RemainderE4043 A94043 4.56.0 0.8 0.30 0.05 0.05 0.10 0.20 0.0008 0.05 0.15 RemainderaThe core wire, or the stock from which it is made, shall be analyzed for the specific elements for which values are shown in
34、this table. If the presenceof other elements is indicated in the course of work, the amount of those elements shall be determined to ensure that they do not exceed the limitsspecified for “Other Elements.”bSingle values are maximum, except where otherwise specified.cSAE/ASTM Unified Numbering System
35、 for Metals and Alloys.dSilicon plus iron shall not exceed 0.95 percent.eThe aluminum content for unalloyed aluminum is the difference between 100.00 percent and the sum of all other metallic elements present inamounts of 0.010 percent or more each, expressed to the second decimal before determining
36、 the sum.fRefer to Table A1 for Proposed ISO Designations.AWS A5.3/A5.3M:1999 (R2007)38.3 In the event that, during preparation or after comple-tion of any test, it is clearly determined that prescribed orproper procedures were not followed in preparing theweld test assembly or test specimens or in
37、conducting thetest, the test shall be considered invalid, without regardto whether the test was actually completed, or whetherthe test results met, or failed to meet, the requirement.That test shall be repeated, following the proper pre-scribed procedures. In this case the requirement for dou-bling
38、the number of test specimens does not apply.9. Weld Test Assembly9.1 One weld test assembly is required as specified inTable 2. It is the groove weld in Figure 1 for mechanicalproperties.9.2 Preparation of the weld test assembly shall be as pre-scribed in 9.3, Figure 1, and Table 2 (Notes e and f) u
39、singbase metal of the appropriate type specified in Table 3.Testing of the assembly shall be as specified in Sections11, Tension Test, and 12, Bend Test. The assembly shallbe tested in the as-welded condition.9.3 The test assembly shall be preheated to a temperaturebetween 350 and 400F 175 and 200C,
40、 and shieldedmetal arc (SMA) welded from one side, in the flat posi-tion. The test assembly should be precambered or re-strained so that warping due to welding will not cause thefinished test assembly to be out-of-plane by more than5 degrees. If the completed test assembly is more than5 degrees out-
41、of-plane it shall be straightened at roomtemperature.10. Chemical Analysis10.1 A sample of the core wire, or the stock from whichit is made, shall be prepared for chemical analysis.10.2 The sample shall be analyzed by accepted analyticalmethods. The referee method shall be ASTM E 34, Stan-dard Metho
42、ds for Chemical Analysis of Aluminum andAluminum Alloys.10.3 The results of the analysis shall meet the require-ments of Table 1 for the classification of electrode undertest.11. Tension Test11.1 Two transverse rectangular tension test specimensshall be machined from the groove weld described inSect
43、ion 9, Weld Test Assembly, and shown in Figure 1.Table 2Required TestsAWS ClassificationElectrode SizeChemical AnalysisaTension TestbBend Testcin. mmE1100, E3003, and E40433/321/85/322.42.53.24.0RequiredRequiredRequiredRequiredNot RequireddNot RequireddNot RequireddRequiredeNot RequireddNot Required
44、dNot RequireddRequirede3/161/45/163/84.85.06.06.48.09.5RequiredRequiredRequiredRequiredRequiredRequiredNot RequireddNot RequireddRequiredfRequiredfNot RequireddNot RequireddNot RequireddNot RequireddRequiredfRequiredfNot RequireddNot RequireddaChemical analysis of the core wire or the stock from whi
45、ch it is made.bSee Section 11.cSee Section 12.dIf the product is not produced in the sizes listed for required tensile tests and bend tests, then the size closest but not greater than the size specified tobe tested, shall be subject to the required tests.eElectrodes 5/32 in. 4.0 mm and smaller shall
46、 be classified on the basis of the results obtained with the 5/32 in. 4.0 mm size of the sameclassification.fElectrodes 3/16 in. 4.8 mm and larger shall be classified on the basis of the results obtained with the 1/4 in. 6.0 or 6.4 mm size of the sameclassification.AWS A5.3/A5.3M:1999 (R2007)4Figure
47、 1Groove Weld Test Assembly for Mechanical PropertiesAWS A5.3/A5.3M:1999 (R2007)5The dimensions of the specimens shall be as specified inthe tension test section of AWS B4.0, Standard Methodsfor Mechanical Testing of Welds. All dimensions shall bethe same as shown in the AWS B4.0 figure for transver
48、serectangular tension test specimens (plate) except the re-duced section radius shall be 2 in. 50 mm.11.2 The specimens shall be tested in the manner de-scribed in the tension test section of ANSI/AWS B4.0,Standard Methods for Mechanical Testing of Welds.11.3 The results of the tension test shall me
49、et the require-ments specified in Table 4.12. Bend Test12.1 One transverse face and one transverse root bendspecimen, as required in Table 2, shall be machined fromthe groove weld test assembly described in Section 9 andshown in Figure 1. The dimensions of these bend speci-mens shall be the same as those shown in the bend testsection of AWS B4.0 in the figure for transverse face andtransverse root-bend specimens (plate).12.2 The specimens shall be tested in the manner de-scribed in the guided bend test section of ANSI/AWSB4.0 by bending them uniformly thro
