NF EN ISO 15614-8
Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 8 : welding of tubes to tube-plate joints
This European Standard specifies requirements for the qualification testing of welding procedures for the arc welding of tube to tube-plate joints in metallic materials by manual, partly mechanized, mechanized or automatic processes. This standard is a part of a series of standards. Details of this series are given in prEN ISO 15607, Annex A. Qualification by tube to tube-plate joint tests can be used for all joints even if they are fully loaded or only seal welded as required in application standards. In such cases, one or more special test pieces should be made to simulate the production joint in all essential features, e.g. dimensions, restraint, heat sink effects. The test should be carried out prior to and under the conditions to be used in production. This standard applies to fusion welding of metallic materials for tube to tube-plate joints with gap. This standard does not apply to tube-sheets with forged end connections with welded tubes (external/internal bore welds). For welding of tube to tube-plate joints without gap welding procedure test should be defined in the specification. For other applications and/or requirements the standard can be used if required by the specification. Repair welding should be considered in the welding procedure test.
This European Standard specifies requirements for the qualification testing of welding procedures for the arc welding of tube to tube-plate joints in metallic materials by manual, partly mechanized, mechanized or automatic processes.
This standard is a part of a series of standards. Details of this series are given in prEN ISO 15607, Annex A. Qualification by tube to tube-plate joint tests can be used for all joints even if they are fully loaded or only seal welded as required in application standards.
In such cases, one or more special test pieces should be made to simulate the production joint in all essential features, e.g. dimensions, restraint, heat sink effects. The test should be carried out prior to and under the conditions to be used in production.
This standard applies to fusion welding of metallic materials for tube to tube-plate joints with gap. This standard does not apply to tube-sheets with forged end connections with welded tubes (external/internal bore welds). For welding of tube to tube-plate joints without gap welding procedure test should be defined in the specification.
For other applications and/or requirements the standard can be used if required by the specification.
Repair welding should be considered in the welding procedure test.
<p>ISO 15614-8:2016 specifies requirements for the qualification testing of welding procedures for the arc welding of tube to tube-plate joints in metallic materials by manual, partly mechanized, fully mechanized, or automatic processes.</p> <p>ISO 15614-8:2016 is a part of a series of standards. Details of this series are given in ISO 15607, Annex A.</p> <p>Qualification by tube to tube-plate joint tests can be used for all joints even if they are fully loaded or only seal welded as required in application standards.</p> <p>ISO 15614-8:2016 applies to fusion welding of metallic materials for tube to tube-plate joints with a remaining gap between the tube and the tube-plate for some length of the tube-plate thickness. This part of ISO 15614 does not apply to tube-sheets with forged end connections with welded tubes (external/internal bore welds).</p> <p>For welding of tube to tube-plate joints with mechanical expansion which is load bearing, welding procedure test is to be defined.</p> <p>For other applications and/or requirements, this part of ISO 15614 can be used if required by the specification.</p> <p>Repair welding is to be considered in the welding procedure test.</p>
- Avant-propos3
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1 Domaine d'application4
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2 Références normatives4
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3 Termes, définitions et symboles5
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3.1 Termes et définitions5
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3.2 Symboles5
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4 Descriptif d'un mode opératoire de soudage préliminaire (DMOS-P)6
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4.1 Généralités6
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4.2 Informations concernant tous les procédés de soudage6
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4.3 Informations concernant des procédés de soudage particuliers7
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5 Qualification du mode opératoire de soudage7
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6 Soudage des assemblages de qualification8
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6.1 Généralités8
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6.2 Type de l'assemblage de qualification8
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7 Examens, contrôles et essais9
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7.1 Exécution9
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7.2 Critères d'acceptation11
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8 Domaine de validité13
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8.1 Généralités13
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8.2 Par rapport au constructeur13
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8.3 Par rapport au matériau14
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8.4 Dispositions communes à tous les modes opératoires de soudage14
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9 Procès-verbal de qualification de mode opératoire de soudage (PV-QMOS)16
- Annexe A (informative) Procès-verbal de qualification de mode opératoire de soudage de tubes sur plaque tubulaire (PV-QMOS)17
- Annexe ZA (informative) Articles de la présente norme européenne concernant les exigences essentielles ou d'autres dispositions des Directives UE22
- Bibliographie23
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