1、BRITISH STANDARDBS EN ISO 15792-2:2008Welding consumables Test methods Part 2: Preparation of single-run and two-run technique test specimens in steelICS 25.160.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48
2、g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 15792-2:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2008 BSI 2008ISBN 978 0 580 59116 7National forewordThis British Standard is the UK implementation of
3、 EN ISO 15792-2:2008. It is identical to ISO 15792-2:2000. It supersedes BS EN 1597-2:1997 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee WEE/39, Welding consumables.A list of organizations represented on this committee can be obtained on request to i
4、ts secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN
5、 STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15792-2May 2008ICS 25.160.20 Supersedes EN 1597-2:1997 English VersionWelding consumables - Test methods - Part 2: Preparation ofsingle-run and two-run technique test specimens in steel (ISO15792-2:2000)Produits consommables pour le soudage - Mthodesdess
6、ai - Partie 2: Prparation dprouvettes en une oudeux passes en acier (ISO 15792-2:2000)Schweizustze - Prfverfahren - Teil 2: Vorbereitungeines Prfstcks zur Prfung von Einlagen- undLage/Gegenlage-Schweiungen an Stahl (ISO 15792-2:2000)This European Standard was approved by CEN on 5 April 2008.CEN memb
7、ers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application
8、 to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the s
9、ame status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Rom
10、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedwo
11、rldwide for CEN national Members.Ref. No. EN ISO 15792-2:2008: EForeword The text of ISO 15792-2:2000 has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 15792-2:2008 by Techni
12、cal Committee CEN/TC 121 “Welding” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2008, and conflicting national standards shall be withdrawn at
13、the latest by November 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1597-2:1997. According to the
14、 CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuani
15、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 15792-2:2000 has been approved by CEN as a EN ISO 15792-2:2008 without any modification. iiBS EN ISO 15792-2:2008iiiIntroduc
16、tionConsumables for both submerged arc welding and metal arc welding with tubular cored electrodes can be suitablefor welding by the single- or two-run technique and the methods for testing and classification are specified. When awelding consumable is offered for use by these techniques, it should b
17、e noted that all-weld metal test pieces maynot be required by the consumable classification standard.Test conditions prescribed and results required should not be considered to be requirements or expectations for aprocedure qualification.BS EN ISO 15792-2:2008blank1Welding consumables Test methods P
18、art 2:Preparation of single-run and two-run technique test specimens insteel1 ScopeThis part of ISO 15792 specifies the preparation of butt weld test pieces and specimens. The purpose is to definetest methods in order to determine strength and impact strength of the welded joint when testing welding
19、consumables with single-run and two-run technique, not suitable for electro-slag or electro-gas welding.This part of ISO 15792 is applicable to welding consumables for arc welding of steel.2 Normative referencesThe following normative documents contain provisions which, through reference in this tex
20、t, constitute provisions ofthis part of ISO 15792. For dated references, subsequent amendments to, or revisions of, any of these publicationsdo not apply. However, parties to agreements based on this part of ISO 15792 are encouraged to investigate thepossibility of applying the most recent editions
21、of the normative documents indicated below. For undatedreferences, the latest edition of the normative document referred to applies. Members of ISO and IEC maintainregisters of currently valid International Standards.ISO 4136:2000, Fusion-welded butt joints in steel Transverse tensile test.ISO 9016:
22、2000, Destructive tests on welds in metallic materials Impact tests Test specimen location, notchorientation and examination.ISO 13916, Welding Guidance on the measurement of preheating temperature, interpass temperature andpreheat maintenance temperature.3 General requirementsWelding consumables to
23、 be tested shall be representative of the manufacturers products to be classified or tested.Test pieces shall be prepared as described below.4 Test plate materialThe material to be used shall be in accordance with the material defined in the appropriate consumableclassification standard.BS EN ISO 15
24、792-2:200825 Preparation of the test pieceThe plates of the test piece shall be preset or restrained in such a way that a sufficiently flat test piece is producedfor extraction of specimens. The welded test piece shall not be straightened. A suitable backing system for single-run technique may be us
25、ed. Run-on and run-off plates may be used. See Table 1.6 Welding conditionsThe test piece shall be welded in the flat position. The welding shall be started at room temperature or afterapplying any preheating if required by the welding consumable standard. The interpass temperature shall be inaccord
26、ance with the welding consumable standard.The preheating and interpass temperatures shall be measured using temperature indicator crayons, surfacethermometers or thermocouples, see ISO 13916.The welding conditions used, such as current, voltage, travel speed, weld bead size, shall be within the rang
27、erecommended by the manufacturer and where the test is performed for classification purposes in accordance withthe limits specified in the relevant consumable standard.7 Heat treatmentAll heat treatments required for the butt weld, except hydrogen removal treatment shall be carried out on thecomplet
28、ed test piece, or on sections thereof with a machining allowance.The heat treatments are specified in standards relating to welding consumables.Hydrogen removal treatment may be carried out on the test piece for tensile testing before or after final machining.The test piece may be held at a temperat
29、ure not exceeding 250 C for up to 16 h.8 Position of specimens, specimen dimensions and testingFigures 1 and 2 show the position of the tensile test specimen and of the notched impact specimens. The test piecemust be divided by cutting (machining) or by thermal cutting. In the case of thermal cuttin
30、g, machining allowancesof 10 mm at least on either side shall be provided for the subsequent machining of the specimens.The specimens for transverse tensile tests and testing shall be in accordance with ISO 4136. Table 2 ofISO 4136:2000 shall be used for specimen dimensions.When applicable, the spec
31、imens for the impact test and testing shall be in accordance with ISO 9016. The impactspecimen shall be in accordance with the designation VWT 0/b in ISO 9016:2000. The position of the impactspecimens shall be at the midline of the plate thickness for types 2.1 and 2.2 and from the last welded run a
32、sshown in Figure 2 for type 2.5. Impact specimens are not applicable for type 2.3 and 2.4.The size of impact specimens shall be 10 mm Gb4 10 mm. If impact testing is required for types 2.3 and 2.4 subsizespecimens 5 mm Gb4 10 mm shall be used.NOTE It is recommended that the test piece be subjected t
33、o radiographic and/or macrographic examination of theprepared and etched surface to ascertain if there are any defects in the weld prior to the preparation of test specimens.9 RetestsIf any test fails, repeat tests shall be performed in accordance with relevant requirements.BS EN ISO 15792-2:20083Di
34、mensions in millimetresTable 1 Butt weld test piece for single-run or two-run techniqueType Plate thickness PreparationDiameter of wireelectrode for submergedarcweldingaDiameter of tubularcored electrodea2.1 12 single-runtechnique4 2.2 12 two-runtechnique4 2.3 6 single-runtechnique See classificatio
35、nstandard2.4 6 single-runtechnique1,6b2.5 20 two-runtechnique5baOther diameters may be used for tests other than classification tests.bOr largest diameter offered by the manufacturer for single run technique.BS EN ISO 15792-2:20084Dimensions in millimetresKey1 Tensile specimens2 Impact specimensaEff
36、ective weld lengthFigure 1 Position of specimensDimensions in millimetresFigure 2 Position of impact specimensBS EN ISO 15792-2:2008510 Test reportThe following data shall be reported:a) test piece and welding consumables:Gbe test piece type and unique identification;Gbe test plate material and back
37、ing strip material, if applicable;Gbe standard designation and trade name of the welding consumables;Gbe redrying conditions for welding consumables;Gbe heat or lot number of the welding consumables;Gbe diameter of the welding electrode;b) welding conditions as applicable:Gbe welding process;Gbe pow
38、er source;Gbe current type and polarity;Gbe current (and/or wire feed speed), voltage, travel speed;Gbe distance from contact tube to surface of plate (stick-out);Gbe type and flow rate of shielding gas;Gbe preheating temperature;Gbe interpass temperature;c) heat treatment (including hydrogen remova
39、l treatment):Gbe temperature;Gbe holding time;Gbe cooling conditions;d) deviations from this part of ISO 15792;e) test results, as applicable:Gbe testing temperatures;Gbe radiographic and/or macrographic examination;Gbe tensile strength;Gbe impact strength;Gbe location of fracture;Gbe imperfections.
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