SIST EN ISO 15614-7:2020

Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 7: Overlay welding (ISO 15614-7:2016)

ISO 15614-7:2016 specifies how a preliminary welding procedure specification for overlay welding is qualified by welding procedure tests.
ISO 15614-7:2016 defines the conditions for execution of welding procedure tests and the range of qualification for welding procedures for all practical welding operations within the range of variables listed in Clause 8.
ISO 15614-7:2016 applies to all welding processes suitable for overlay welding. In situations where qualification is carried out on a pre-production test piece, the qualification is performed in accordance with ISO 15613 except that, as far as possible, the testing is according to this part of ISO 15614. Building up and repair of parent metal is covered by ISO 15613 or ISO 15614‑1.
This edition of ISO 15614‑7 is applicable to all new welding procedure qualification tests. It does not invalidate previous welding procedure tests made in accordance with previous editions of this part of ISO 15614. Where additional tests are required by the present edition, it is only necessary that those additional tests be carried out on a test piece made in accordance with the existing WPS and this part of ISO 15614.
If buttering is used for welding between dissimilar materials, the welding procedure is qualified in accordance with ISO 15614‑1. This buttering may be required for weld combining different material structure or properties, e.g. joining martensitic steels or ferritic steels with austenitic steels.
Additional tests may be required by application standards.

Anforderung und Qualifizierung von SchweissŸverfahren für metallische Werkstoffe - SchweissŸverfahrensprüfung - Teil 7: Auftragschweissen (ISO 15614-7:2016)

Dieser Teil der ISO 15614 legt fest, wie eine vorläufige Schweißanweisung für das Auftragschweißen durch Schweißverfahrensprüfungen qualifiziert wird.
Dieser Teil der ISO 15614 definiert die Bedingungen für die Durchführung der Schweißverfahrensprüfungen und den Geltungsbereich der Schweißverfahren bei deren Anwendungen in der Praxis entsprechend den verschiedenen Einflussgrößen nach Abschnitt 8.
Dieser Teil der ISO 15614 gilt für alle Schweißprozesse, die für das Auftragschweißen geeignet sind. In Situationen, wo die Qualifizierung auf einer vorgezogenen Arbeitsprobe beruht, muss die Prüfung in Über-einstimmung mit ISO 15613 erfolgen, ausgenommen, die Prüfung kann soweit wie möglich die Anforde-rungen aus diesem Teil der ISO 15614 erfüllen. Formgebendes Schweißen und Reparatur von Grundwerk-stoffen wird in ISO 15613 oder ISO 15614 1 behandelt.
Diese Ausgabe der ISO 15614 7 gilt für alle neuen Schweißverfahren. Sie setzt jedoch keine bereits bestehen¬den Schweißverfahrensprüfungen außer Kraft, die nach früheren Teilen dieser ISO 15614 durchgeführt wurden. Wenn nach der vorliegenden Ausgabe zusätzliche Prüfungen durchzuführen sind, brauchen diese nur an einem Prüfstück durchgeführt werden, das in Übereinstimmung mit einer vor-handenen WPS und diesem Teil der ISO 15614 hergestellt wurde.
Wenn ein Puffern zum Schweißen zwischen unterschiedlichen Werkstoffen erforderlich ist, ist das Schwei߬verfahren nach ISO 15614 1 zu qualifizieren. Dieses Puffern kann für die Kombination von unterschiedlichen Werkstoffstrukturen oder  eigenschaften beim Schweißen erforderlich sein, z. B. wenn martensitische oder ferritische Stähle mit austenitischen Stählen verbunden werden.
Zusätzliche Prüfungen können durch Anwendungsnormen erforderlich werden.

Descriptif et qualification d'un mode opératoire de soudage pour les matériaux métalliques - Épreuve de qualification d'un mode opératoire de soudage - Partie 7 : Rechargement par soudage (ISO 15614-7:2016)

ISO 15614-7:2016 spécifie comment un descriptif de mode opératoire de soudage préliminaire appliqué au rechargement par soudage est qualifié par des épreuves de qualification du mode opératoire de soudage.
ISO 15614-7:2016 définit les conditions d'exécution des épreuves de qualification du mode opératoire de soudage et le domaine de validité du mode opératoire de soudage, pour toutes les opérations pratiques de soudage englobant les variables mentionnées à l'Article 8.
ISO 15614-7:2016 s'applique à l'ensemble des procédés de soudage adaptés au rechargement par soudage. Dans les situations où la qualification a été effectuée sur la base d'un assemblage soudé de préproduction, la qualification est effectuée en conformité avec l'ISO 15613, excepté que dans la mesure du possible, les essais doivent respecter les exigences de la présente partie de l'ISO 15614. La reconstitution par soudage et la réparation des métaux de base sont couvertes par l'ISO 15613 ou l'ISO 15614‑1.
La présente édition de l'ISO 15614‑7 s'applique à toutes les nouvelles épreuves de qualification d'un mode opératoires de soudage. Elle n'invalide pas les épreuves de qualification antérieures d'un mode opératoire de soudage exécutées selon les précédentes éditions de la présente norme. Si des contrôles, examens et essais complémentaires sont requis par la présente édition, il est seulement nécessaire d'effectuer ces contrôles, examens et essais complémentaires sur un assemblage de qualification préparé conformément au descriptif de mode opératoire de soudage existant et à la présente partie de l'ISO 15614.
Si le beurrage est utilisé pour le soudage de matériaux différents, le mode opératoire de soudage est qualifié conformément à l'ISO 15614‑1. Ce beurrage peut être exigé pour des soudures combinant des matériaux aux structures ou aux propriétés différentes, par exemple dans le cas de l'assemblage d'aciers martensitiques ou ferritiques avec des aciers austénitiques.
Des contrôles, examens et essais complémentaires peuvent être exigés par des normes d'application.

Popis in kvalifikacija varilnih postopkov za kovinske materiale - Preskus varilnega postopka - 7. del: Navarjanje (ISO 15614-7:2016)

Standard ISO 15614-7:2016 določa, kako se predhodna specifikacija varilnega postopka za navarjanje razvrsti na podlagi preskusov varilnih postopkov.
Standard ISO 15614-7:2016 opredeljuje pogoje za izvajanje preskusov varilnih postopkov in razpon razvrščanja za varilne postopke za vse praktične postopke varjenja v obsegu spremenljivk iz točke 8.
Standard ISO 15614-7:2016 se uporablja za vse postopke varjenja, ki so primerni za navarjanje. V primerih, ko se razvrščanje izvaja na predproizvodnem preskušancu, se razvrščanje izvaja v skladu s standardom ISO 15613, vendar se preskušanje, če je le mogoče, izvaja v skladu s tem delom standarda ISO 15614. Navarjanje in popravljanje glavne kovine sta obravnavana v standardu ISO 15613 ali ISO 15614‑1.
Ta izdaja standarda ISO 15614‑7 se uporablja za vse nove preskuse za razvrščanje varilnih postopkov. Ne izničuje prejšnjih preskusov varilnih postopkov, ki so izvedeni v skladu s prejšnjimi izdajami tega dela standarda ISO 15614. Kjer so za trenutno izdajo potrebni dodatni preskusi, je treba dodatne preskuse izvesti samo na preskušancu v skladu z obstoječo specifikacijo varilnega postopka in s tem delom standarda ISO 15614.
Če se za varjenje različnih materialov med seboj uporablja vmesni sloj, se varilni postopek razvrsti skladno s standardom ISO 15614‑1. Ta vmesni sloj je morda potreben za zvar, ki združuje materiale z različnimi strukturami ali lastnostmi, npr. pri združevanju martenzitnega ali feritnega jekla z avstenitnim jeklom.
Standardi uporabe lahko zahtevajo dodatne preskuse.

General Information

• Status: Published
• Public Enquiry End Date: 01-Aug-2019
• Publication Date: 04-Feb-2020
• ICS: 25.160.10 - Welding processes
• Technical Committee: VAR - Welding
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 21-Jan-2020
• Due Date: 27-Mar-2020
• Completion Date: 05-Feb-2020
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: EN ISO 15614-7:2019 - Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 7: Overlay welding (ISO 15614-7:2016)

Relations

• Replaces: SIST EN ISO 15614-7:2017 - Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 7: Overlay welding (ISO 15614-7:2016)
• Effective Date: 01-Mar-2020
• Replaces: SIST EN ISO 15614-7:2017 - Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 7: Overlay welding (ISO 15614-7:2016)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 15614-7:2020
01-marec-2020
Nadomešča:
SIST EN ISO 15614-7:2017
Popis in kvalifikacija varilnih postopkov za kovinske materiale - Preskus varilnega
postopka - 7. del: Navarjanje (ISO 15614-7:2016)
Specification and qualification of welding procedures for metallic materials - Welding
procedure test - Part 7: Overlay welding (ISO 15614-7:2016)
Anforderung und Qualifizierung von Schweissverfahren für metallische Werkstoffe -
Schweissverfahrensprüfung - Teil 7: Auftragschweissen (ISO 15614-7:2016)
Descriptif et qualification d'un mode opératoire de soudage pour les matériaux
métalliques - Épreuve de qualification d'un mode opératoire de soudage - Partie 7 :
Rechargement par soudage (ISO 15614-7:2016)
Ta slovenski standard je istoveten z: EN ISO 15614-7:2019
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
SIST EN ISO 15614-7:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 15614-7:2020

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SIST EN ISO 15614-7:2020


EN ISO 15614-7
EUROPEAN STANDARD

NORME EUROPÉENNE

November 2019
EUROPÄISCHE NORM
ICS 25.160.10 Supersedes EN ISO 15614-7:2016
English Version

Specification and qualification of welding procedures for
metallic materials - Welding procedure test - Part 7:
Overlay welding (ISO 15614-7:2016)
Descriptif et qualification d'un mode opératoire de Anforderung und Qualifizierung von
soudage pour les matériaux métalliques - Épreuve de Schweiss¿verfahren für metallische Werkstoffe -
qualification d'un mode opératoire de soudage - Partie Schweiss¿verfahrensprüfung - Teil 7:
7 : Rechargement par soudage (ISO 15614-7:2016) Auftragschweissen (ISO 15614-7:2016)
This European Standard was approved by CEN on 16 September 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15614-7:2019 E
worldwide for CEN national Members.

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SIST EN ISO 15614-7:2020
EN ISO 15614-7:2019 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2014/68/EU (PED) aimed to be covered . 4
2

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SIST EN ISO 15614-7:2020
EN ISO 15614-7:2019 (E)
European foreword
The text of ISO 15614-7:2016 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 15614-7:2019 by Technical Committee CEN/TC 121 “Welding and allied processes” 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 May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 15614-7:2016.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 15614-7:2016 has been approved by CEN as EN ISO 15614-7:2019 without any
modification.

3

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SIST EN ISO 15614-7:2020
EN ISO 15614-7:2019 (E)
Annex ZA
(informative)

Relationship between this European Standard and the essential
requirements of EU Directive 2014/68/EU (PED) aimed to be covered
This European Standard has been prepared under a Commission's standardization request M/071
"Mandate to CEN for standardization in the field of pressure equipment" to provide one voluntary
means of conforming to essential requirements of Directive 2014/68/EU (PED) on the harmonisation of
the laws of the Member States relating to the making available on the market of pressure equipment.
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex I of the Directive
2014/68/EU (PED)
Essential Requirements of Clauses of this EN Remarks/Notes
Directive 2014/68/EU (PED)
For pressure resistant
components of pressure
equipment in the categories II, III
3.1.2 Clauses 4 to 9 and IV the examiner/examining
body (clause 6.2 and 9 of the
standard) is a competent third
party.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) and services falling within
the scope of this standard.

4

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SIST EN ISO 15614-7:2020
INTERNATIONAL ISO
STANDARD 15614-7
Second edition
2016-10-15
Specification and qualification of
welding procedures for metallic
materials — Welding procedure test —
Part 7:
Overlay welding
Descriptif et qualification d’un mode opératoire de soudage pour
les matériaux métalliques — Épreuve de qualification d’un mode
opératoire de soudage —
Partie 7: Rechargement par soudage
Reference number
ISO 15614-7:2016(E)
©
ISO 2016

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SIST EN ISO 15614-7:2020
ISO 15614-7:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

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SIST EN ISO 15614-7:2020
ISO 15614-7:2016(E)

Contents Page
Foreword .v
Introduction .vii
1 Scope .1
2 Normative references .1
3 Terms and definitions . 2
4 Preliminary welding procedure specification (pWPS) .3
4.1 Corrosion resistant overlay welding . 3
4.2 Hardfacing . 3
5 Welding procedure qualification test .3
6 Test piece .3
6.1 Shape and dimensions of test pieces . 3
6.1.1 General. 3
6.1.2 Corrosion resistant overlay welding and hardfacing . 3
6.1.3 Intermediate layer . 3
6.2 Welding of test pieces . 5
7 Examination and testing .5
7.1 Extent of examination and testing . 5
7.2 Non-destructive testing (NDT) . 6
7.3 Location and taking of test specimens . 6
7.4 Destructive testing . 8
7.4.1 General. 8
7.4.2 Macroscopic examination . 9
7.4.3 Hardness testing . 9
7.4.4 Side bend testing . . . 9
7.4.5 Chemical analysis .10
7.4.6 Delta ferrite content/ferrite number (FN) .10
7.5 Acceptance criteria .11
7.5.1 Acceptance criteria for non-destructive testing (NDT) .11
7.5.2 Destructive testing .11
7.6 Re-testing .12
8 Range of qualification .12
8.1 General .12
8.2 Qualification related to the manufacturer .12
8.3 Qualification related to the material .13
8.3.1 Parent metal .13
8.3.2 Parent metal thickness .13
8.4 Qualification related to the filler material/overlay .13
8.4.1 Filler material designation .13
8.4.2 Thickness of the overlay .13
8.5 Common to welding procedures .14
8.5.1 Welding process .14
8.5.2 Welding position .14
8.5.3 Type of current .14
8.5.4 Arc energy .14
8.5.5 Preheating temperature .14
8.5.6 Interpass temperature .14
8.5.7 Post-heating for hydrogen release .15
8.5.8 Post-weld heat-treatment (PWHT) .15
8.5.9 Number of layers .15
8.6 Specific to welding processes .15
© ISO 2016 – All rights reserved iii

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SIST EN ISO 15614-7:2020
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8.6.1 Process 111 [manual metal arc welding (metal arc welding with covered
electrode)] .15
8.6.2 Processes 12 (submerged arc welding) and 72 (electroslag overlay welding) .15
8.6.3 Processes 13 [gas-shielded metal arc welding and 14 (gas-shielded arc
welding with non-consumable tungsten electrode)] .16
8.6.4 Process 15 (plasma arc welding) .16
8.6.5 Process 153 (plasma transferred arc) .16
8.6.6 Process 311 (oxy-acetylene welding) .16
9 Welding procedure qualification record (WPQR) .17
Annex A (informative) Welding procedure qualification record form (WPQR) .18
Bibliography .22
iv © ISO 2016 – All rights reserved

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SIST EN ISO 15614-7:2020
ISO 15614-7:2016(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee
SC 10, Quality management in the field of welding.
This second edition cancels and replaces the first edition (ISO 15614-7:2007), which has been technically
revised.
ISO 15614 consists of the following parts, under the general title Specification and qualification of
welding procedures for metallic materials — Welding procedure test:
— Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
— Part 2: Arc welding of aluminium and its alloys
— Part 3: Fusion welding of non-alloyed and low-alloyed cast irons
— Part 4: Finishing welding of aluminium castings
— Part 5: Arc welding of titanium, zirconium and their alloys
— Part 6: Arc and gas welding of copper and its alloys
— Part 7: Overlay welding
— Part 8: Welding of tubes to tube-plate joints
— Part 10: Hyperbaric dry welding
— Part 11: Electron and laser beam welding
— Part 12: Spot, seam and projection welding
— Part 13: Upset (resistance butt) and flash welding
— Part 14: Laser-arc hybrid welding of steels, nickel and nickel alloys
© ISO 2016 – All rights reserved v

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SIST EN ISO 15614-7:2020
ISO 15614-7:2016(E)

Requests for official interpretations of any aspect of this part of ISO 15614 should be directed to the
secretariat if ISO/TC 44/SC 10 via your national standards body, a complete listing which can be found
at www.iso.org.
vi © ISO 2016 – All rights reserved

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SIST EN ISO 15614-7:2020
ISO 15614-7:2016(E)

Introduction
This part of ISO 15614 is one of a series of International Standards, the details of which are given in
ISO 15607:2003, Annex A.
All new welding procedure tests are intended to be carried out in accordance with this edition of
ISO 15614-7 from the date of its publication. However, qualifications performed in accordance with the
previous editions of this part of ISO 15614 are still valid and it is not considered necessary to perform
additional tests to fulfil its requirements for any application with reference to previous editions.
Nevertheless, in order to comply with the requirements of the present edition it may be necessary to
perform additional tests for previously qualified WPS.
© ISO 2016 – All rights reserved vii

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SIST EN ISO 15614-7:2020

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SIST EN ISO 15614-7:2020
INTERNATIONAL STANDARD ISO 15614-7:2016(E)
Specification and qualification of welding procedures for
metallic materials — Welding procedure test —
Part 7:
Overlay welding
1 Scope
This part of ISO 15614 specifies how a preliminary welding procedure specification for overlay welding
is qualified by welding procedure tests.
This part of ISO 15614 defines the conditions for execution of welding procedure tests and the range of
qualification for welding procedures for all practical welding operations within the range of variables
listed in Clause 8.
This part of ISO 15614 applies to all welding processes suitable for overlay welding. In situations where
qualification is carried out on a pre-production test piece, the qualification is performed in accordance
with ISO 15613 except that, as far as possible, the testing is according to this part of ISO 15614. Building
up and repair of parent metal is covered by ISO 15613 or ISO 15614-1.
This edition of ISO 15614-7 is applicable to all new welding procedure qualification tests. It does not
invalidate previous welding procedure tests made in accordance with previous editions of this part of
ISO 15614. Where additional tests are required by the present edition, it is only necessary that those
additional tests be carried out on a test piece made in accordance with the existing WPS and this part
of ISO 15614.
If buttering is used for welding between dissimilar materials, the welding procedure is qualified in
accordance with ISO 15614-1. This buttering may be required for weld combining different material
structure or properties, e.g. joining martensitic steels or ferritic steels with austenitic steels.
Additional tests may be required by application standards.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references the latest edition of the referenced document (including any amendments) applies.
ISO 3452-1, Non-destructive testing — Penetrant testing — Part 1: General principles
ISO 5173, Destructive tests on welds in metallic materials — Bend tests
ISO 9015-1, Destructive tests on welds in metallic materials — Hardness testing — Part 1: Hardness test on
arc welded joints
ISO 13916, Welding — Guidance on the measurement of preheating temperature, interpass temperature
and preheat maintenance temperature
ISO 14174, Welding consumables — Fluxes for submerged arc welding and electroslag welding —
Classification
ISO 14175, Welding consumables — Gases and gas mixtures for fusion welding and allied processes
ISO 15607:2003, Specification and qualification of welding procedures for metallic materials — General rules
© ISO 2016 – All rights reserved 1

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SIST EN ISO 15614-7:2020
ISO 15614-7:2016(E)

ISO 15609-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 1: Arc welding
ISO 15609-2, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 2: Gas welding
ISO 15609-3, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 3: Electron beam welding
ISO 15609-4, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 4: Laser beam welding
ISO 15613, Specification and qualification of welding procedures for metallic materials — Qualification
based on pre-production welding test
ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 17405, Non-destructive testing — Ultrasonic testing — Technique of testing claddings produced by
welding, rolling and explosion
ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints
ISO 17638, Non-destructive testing of welds — Magnetic particle testing
ISO 17639, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination
of welds
ISO 23277, Non-destructive testing of welds — Penetrant testing — Acceptance levels
ISO 23278, Non-destructive testing of welds — Magnetic particle testing — Acceptance levels
ISO/TR 15608, Welding — Guidelines for a metallic materials grouping system
ISO/TR 18491, Welding and allied processes — Guidelines for measurement of welding energies
ISO/TR 25901 (all parts), Welding and related processes — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15607, ISO/TR 25901 and the
following apply.
3.1
overlay welding
surfacing by means of welding
3.2
cladding
material deposited on the parent metal in order to produce a clad material
3.3
cladding process
surfacing used for cladding (3.2)
3.4
clad steel
combination of two or more dissimilar metals bonded inseparably together by a cladding process (3.3)
3.5
buttering
overlay welding (3.1) to provide a suitable transition between the parent metal and subsequent weld
2 © ISO 2016 – All rights reserved

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SIST EN ISO 15614-7:2020
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3.6
build up
overlay welding (3.1) to obtain or restore required dimensions
4 Preliminary welding procedure specification (pWPS)
4.1 Corrosion resistant overlay welding
The prelimin
...

SLOVENSKI STANDARD
oSIST prEN ISO 15614-7:2019
01-julij-2019
Specifikacija in kvalifikacija varilnih postopkov za kovinske materiale - Preskus
varilnega postopka - 7. del: Navarjanje (ISO 15614-7:2016)
Specification and qualification of welding procedures for metallic materials - Welding
procedure test - Part 7: Overlay welding (ISO 15614-7:2016)
Anforderung und Qualifizierung von SchweiÃverfahren für metallische Werkstoffe -
SchweiÃverfahrensprüfung - Teil 7: AuftragschweiÃen (ISO 15614-7:2016)
Descriptif et qualification d'un mode opératoire de soudage pour les matériaux
métalliques - Épreuve de qualification d'un mode opératoire de soudage - Partie 7:
Rechargement par soudage (ISO 15614-7:2016)
Ta slovenski standard je istoveten z: prEN ISO 15614-7
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
oSIST prEN ISO 15614-7:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 15614-7:2019

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oSIST prEN ISO 15614-7:2019
INTERNATIONAL ISO
STANDARD 15614-7
Second edition
2016-10-15
Specification and qualification of
welding procedures for metallic
materials — Welding procedure test —
Part 7:
Overlay welding
Descriptif et qualification d’un mode opératoire de soudage pour
les matériaux métalliques — Épreuve de qualification d’un mode
opératoire de soudage —
Partie 7: Rechargement par soudage
Reference number
ISO 15614-7:2016(E)
©
ISO 2016

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oSIST prEN ISO 15614-7:2019
ISO 15614-7:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

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oSIST prEN ISO 15614-7:2019
ISO 15614-7:2016(E)

Contents Page
Foreword .v
Introduction .vii
1 Scope .1
2 Normative references .1
3 Terms and definitions . 2
4 Preliminary welding procedure specification (pWPS) .3
4.1 Corrosion resistant overlay welding . 3
4.2 Hardfacing . 3
5 Welding procedure qualification test .3
6 Test piece .3
6.1 Shape and dimensions of test pieces . 3
6.1.1 General. 3
6.1.2 Corrosion resistant overlay welding and hardfacing . 3
6.1.3 Intermediate layer . 3
6.2 Welding of test pieces . 5
7 Examination and testing .5
7.1 Extent of examination and testing . 5
7.2 Non-destructive testing (NDT) . 6
7.3 Location and taking of test specimens . 6
7.4 Destructive testing . 8
7.4.1 General. 8
7.4.2 Macroscopic examination . 9
7.4.3 Hardness testing . 9
7.4.4 Side bend testing . . . 9
7.4.5 Chemical analysis .10
7.4.6 Delta ferrite content/ferrite number (FN) .10
7.5 Acceptance criteria .11
7.5.1 Acceptance criteria for non-destructive testing (NDT) .11
7.5.2 Destructive testing .11
7.6 Re-testing .12
8 Range of qualification .12
8.1 General .12
8.2 Qualification related to the manufacturer .12
8.3 Qualification related to the material .13
8.3.1 Parent metal .13
8.3.2 Parent metal thickness .13
8.4 Qualification related to the filler material/overlay .13
8.4.1 Filler material designation .13
8.4.2 Thickness of the overlay .13
8.5 Common to welding procedures .14
8.5.1 Welding process .14
8.5.2 Welding position .14
8.5.3 Type of current .14
8.5.4 Arc energy .14
8.5.5 Preheating temperature .14
8.5.6 Interpass temperature .14
8.5.7 Post-heating for hydrogen release .15
8.5.8 Post-weld heat-treatment (PWHT) .15
8.5.9 Number of layers .15
8.6 Specific to welding processes .15
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8.6.1 Process 111 [manual metal arc welding (metal arc welding with covered
electrode)] .15
8.6.2 Processes 12 (submerged arc welding) and 72 (electroslag overlay welding) .15
8.6.3 Processes 13 [gas-shielded metal arc welding and 14 (gas-shielded arc
welding with non-consumable tungsten electrode)] .16
8.6.4 Process 15 (plasma arc welding) .16
8.6.5 Process 153 (plasma transferred arc) .16
8.6.6 Process 311 (oxy-acetylene welding) .16
9 Welding procedure qualification record (WPQR) .17
Annex A (informative) Welding procedure qualification record form (WPQR) .18
Bibliography .22
iv © ISO 2016 – All rights reserved

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oSIST prEN ISO 15614-7:2019
ISO 15614-7:2016(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee
SC 10, Quality management in the field of welding.
This second edition cancels and replaces the first edition (ISO 15614-7:2007), which has been technically
revised.
ISO 15614 consists of the following parts, under the general title Specification and qualification of
welding procedures for metallic materials — Welding procedure test:
— Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
— Part 2: Arc welding of aluminium and its alloys
— Part 3: Fusion welding of non-alloyed and low-alloyed cast irons
— Part 4: Finishing welding of aluminium castings
— Part 5: Arc welding of titanium, zirconium and their alloys
— Part 6: Arc and gas welding of copper and its alloys
— Part 7: Overlay welding
— Part 8: Welding of tubes to tube-plate joints
— Part 10: Hyperbaric dry welding
— Part 11: Electron and laser beam welding
— Part 12: Spot, seam and projection welding
— Part 13: Upset (resistance butt) and flash welding
— Part 14: Laser-arc hybrid welding of steels, nickel and nickel alloys
© ISO 2016 – All rights reserved v

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oSIST prEN ISO 15614-7:2019
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Requests for official interpretations of any aspect of this part of ISO 15614 should be directed to the
secretariat if ISO/TC 44/SC 10 via your national standards body, a complete listing which can be found
at www.iso.org.
vi © ISO 2016 – All rights reserved

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oSIST prEN ISO 15614-7:2019
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Introduction
This part of ISO 15614 is one of a series of International Standards, the details of which are given in
ISO 15607:2003, Annex A.
All new welding procedure tests are intended to be carried out in accordance with this edition of
ISO 15614-7 from the date of its publication. However, qualifications performed in accordance with the
previous editions of this part of ISO 15614 are still valid and it is not considered necessary to perform
additional tests to fulfil its requirements for any application with reference to previous editions.
Nevertheless, in order to comply with the requirements of the present edition it may be necessary to
perform additional tests for previously qualified WPS.
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oSIST prEN ISO 15614-7:2019
INTERNATIONAL STANDARD ISO 15614-7:2016(E)
Specification and qualification of welding procedures for
metallic materials — Welding procedure test —
Part 7:
Overlay welding
1 Scope
This part of ISO 15614 specifies how a preliminary welding procedure specification for overlay welding
is qualified by welding procedure tests.
This part of ISO 15614 defines the conditions for execution of welding procedure tests and the range of
qualification for welding procedures for all practical welding operations within the range of variables
listed in Clause 8.
This part of ISO 15614 applies to all welding processes suitable for overlay welding. In situations where
qualification is carried out on a pre-production test piece, the qualification is performed in accordance
with ISO 15613 except that, as far as possible, the testing is according to this part of ISO 15614. Building
up and repair of parent metal is covered by ISO 15613 or ISO 15614-1.
This edition of ISO 15614-7 is applicable to all new welding procedure qualification tests. It does not
invalidate previous welding procedure tests made in accordance with previous editions of this part of
ISO 15614. Where additional tests are required by the present edition, it is only necessary that those
additional tests be carried out on a test piece made in accordance with the existing WPS and this part
of ISO 15614.
If buttering is used for welding between dissimilar materials, the welding procedure is qualified in
accordance with ISO 15614-1. This buttering may be required for weld combining different material
structure or properties, e.g. joining martensitic steels or ferritic steels with austenitic steels.
Additional tests may be required by application standards.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references the latest edition of the referenced document (including any amendments) applies.
ISO 3452-1, Non-destructive testing — Penetrant testing — Part 1: General principles
ISO 5173, Destructive tests on welds in metallic materials — Bend tests
ISO 9015-1, Destructive tests on welds in metallic materials — Hardness testing — Part 1: Hardness test on
arc welded joints
ISO 13916, Welding — Guidance on the measurement of preheating temperature, interpass temperature
and preheat maintenance temperature
ISO 14174, Welding consumables — Fluxes for submerged arc welding and electroslag welding —
Classification
ISO 14175, Welding consumables — Gases and gas mixtures for fusion welding and allied processes
ISO 15607:2003, Specification and qualification of welding procedures for metallic materials — General rules
© ISO 2016 – All rights reserved 1

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ISO 15609-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 1: Arc welding
ISO 15609-2, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 2: Gas welding
ISO 15609-3, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 3: Electron beam welding
ISO 15609-4, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 4: Laser beam welding
ISO 15613, Specification and qualification of welding procedures for metallic materials — Qualification
based on pre-production welding test
ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 17405, Non-destructive testing — Ultrasonic testing — Technique of testing claddings produced by
welding, rolling and explosion
ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints
ISO 17638, Non-destructive testing of welds — Magnetic particle testing
ISO 17639, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination
of welds
ISO 23277, Non-destructive testing of welds — Penetrant testing — Acceptance levels
ISO 23278, Non-destructive testing of welds — Magnetic particle testing — Acceptance levels
ISO/TR 15608, Welding — Guidelines for a metallic materials grouping system
ISO/TR 18491, Welding and allied processes — Guidelines for measurement of welding energies
ISO/TR 25901 (all parts), Welding and related processes — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15607, ISO/TR 25901 and the
following apply.
3.1
overlay welding
surfacing by means of welding
3.2
cladding
material deposited on the parent metal in order to produce a clad material
3.3
cladding process
surfacing used for cladding (3.2)
3.4
clad steel
combination of two or more dissimilar metals bonded inseparably together by a cladding process (3.3)
3.5
buttering
overlay welding (3.1) to provide a suitable transition between the parent metal and subsequent weld
2 © ISO 2016 – All rights reserved

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oSIST prEN ISO 15614-7:2019
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3.6
build up
overlay welding (3.1) to obtain or restore required dimensions
4 Preliminary welding procedure specification (pWPS)
4.1 Corrosion resistant overlay welding
The preliminary welding procedure specification shall be in accordance with ISO 15609-1, ISO 15609-3
or ISO 15609-4 as appropriate. It shall specify the tolerances/ranges for all the relevant parameters.
4.2 Hardfacing
The preliminary welding procedure specification shall be in accordance with ISO 15609-1, ISO 15609-2,
ISO 15609-3 or ISO 15609-4 as appropriate. It shall specify the tolerances/ranges for all the relevant
parameters.
5 Welding procedure qualification test
A test piece shall be welded using the same welding processes or process combinations as those to be
used in production.
The welding and testing of test pieces shall be in accordance with Clauses 6 and 7.
6 Test piece
6.1 Shape and dimensions of test pieces
6.1.1 General
The welding procedure test shall be carried out on test piece(s) in accordance with Figures 1 and 2.
The dimensions and/or number of test pieces shall be sufficient to allow all required tests to be carried
out (see Figures 1 and 2).
The thickness and/or diameter of the test pieces shall be selected in accordance with the range of
qualification.
6.1.2 Corrosion resistant overlay welding and hardfacing
A minimum number of three runs is required for the top layer.
6.1.3 Intermediate layer
If an intermediate layer is to be used in production welding, it shall be used in welding the test piece.
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oSIST prEN ISO 15614-7:2019
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Dimensions in millimetres
≥3 2 1
3
≥150
≥250
Key
1 intermediate layer, if necessary
2 number of layers in accordance with the pWPS (see 6.1.2 and 6.1.3) or thickness of overlay deposit
a
3 welding direction
t parent metal thickness
a
The orientation of weld runs is not defined. Specific requirements may be detailed in application standards.
Figure 1 — Test piece — Plate
4 © ISO 2016 – All rights reserved
≥200 t
≥400

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oSIST prEN ISO 15614-7:2019
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Dimensions in millimetres
1
2
2
3
≥150 t
≥200
≥250
≥400
a)  Axial overlay welding — External c)  Circumferential overlay welding — External
1
2
2
3
≥150
t
≥200 ≥250
≥400
b)  Axial overlay welding — Internal d)  Circumferential overlay welding — Internal
Key
1 intermediate layer, if necessary D outside diameter of tube
e
2 welding direction D inside diameter of tube
i
3 number of layers in accordance with the pWPS t parent metal thickness
(see 6.1.2 and 6.1.3) or thickness of overlay
deposit
Figure 2 — Test piece — Tube
6.2 Welding of test pieces
Preparation and welding of test pieces shall be carried out in accordance with the preliminary welding
procedure specification (pWPS) and under the general conditions in production which they shall
represent.
Welding and testing of the test pieces shall be witnessed by an examiner or an examining body.
7 Examination and testing
7.1 Extent of examination and testing
Examination and testing shall be in accordance with the requirements of Table 1.
© ISO 2016 – All rights reserved 5
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Table 1 — Examination and testing of the test pieces
Test piece Type of test Extent of testing Footnote
Corrosion resistant — Visual testing (VT) 100 % —
overlay welding
a
— Ultrasonic testing (UT) 100 %
b
— Penetrant testing (PT) 100 %
c, d
— Side bend test (SBC) 2 specimens
— Macroscopic examination 1 specimen —
— Chemical analysis 1 specimen —
a
— Delta ferrite content/ferrite number (FN) 1 specimen
— Hardness testing 1 survey —
Hardfacing — Visual testing (VT) 100 % —
b
— Surface crack detection (MT/PT) 100 %
— Macroscopic examination 1 specimen —
— Hardness testing 1 survey —
a
If required, in accordance with the application standard.
b
Penetrant testing (PT) or magnetic particle testing (MT). For non-magnetic materials, penetrant testing.
c
Side bend test may be replaced by two additional macroscopic examinations.
d
The orientation of the side bend test (SBC) shall be transverse to the direction of the first layer.
7.2 Non-destructive testing (NDT)
All non-destructive testing of Table 1 shall be carried out on the test pieces after post weld heat
treatment, when specified, and prior to cutting of the test specimens.
Dependant on overlay geometry, materials and the production specification, non-destructive testing
(NDT) shall be carried out in accordance with ISO 17637 (visual testing), ISO 3452-1 (penetrant
testing), ISO 17638 (magnetic particle testing) and ISO 17405 (ultrasonic testing).
The acceptance criteria stated in 7.5.1 or the criteria of product standards, when applicable, shall apply.
7.3 Location and taking of test specimens
Tests specimens shall be taken in accordance with Figures 3 and 4 after all non-destructive testing
(NDT) has been carried out and the results are satisfactory.
It is acceptable to take the test specimens from locations avoiding areas which have imperfections
within the acceptance limits for the NDT method(s) used.
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1
2
3
5
Key
1 discard ≥25 mm of deposited metal 4 area for 1 side bend test specimen
2 area for 1 side bend test specimen 5 welding direction
3 area for:
— 1 macro test specimen
— chemical analysis, ferrite number if called up by the application standard
— 1 hardness test specimen
— re-test
Figure 3 — Location of test specimens for overlay welding on plate
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1 3 21 2
4
5
5
4
3
4 3 2 1
5
2
5
4
3
a)  Axial deposit b)  Circumferential deposit
Key
1 discard ≥25 mm of deposited metal 4 area for 1 side bend test specimen
2 area for 1 side bend test specimen 5 welding direction
3 area for:
— 1 macro test specimen
— chemical analysis, ferrite number if called up by the application standard
— 1 hardness test specimen
— re-test
Figure 4 — Location of tests specimens for overlay welding on tubes
7.4 Destructive testing
7.4.1 General
The extent of testing shall be as required by Table 1. Additional tests may be required by the application
standard or specification.
8 © ISO 2016 – All rights reserved

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15°
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7.4.2 Macroscop
...