EN ISO 15614-7:2007

SLOVENSKI STANDARD
01-september-2007
Popis in kvalifikacija varilnih postopkov za kovinske materiale - Preskus varilnega
postopka - 7. del: Navarjanje (ISO 15614-7:2007)
Specification and qualification of welding procedures for metallic materials - Welding
procedure test - Part 7: Overlay welding (ISO 15614-7:2007)
Anforderung und Qualifizierung von Schweißverfahren für metallische Werkstoffe -
Schweißverfahrensprüfung - Teil 7: Auftragschweißen (ISO 15614-7:2007)
Descriptif et qualification d'un mode opératoire de soudage pour les matériaux
métalliques - Epreuve de qualification d'un mode opératoire de soudage - Partie 7:
Rechargement par soudage (ISO 15614-7:2007)
Ta slovenski standard je istoveten z: EN ISO 15614-7:2007
ICS:
25.160.10
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 15614-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2007
ICS 25.160.10
English Version
Specification and qualification of welding procedures for metallic
materials - Welding procedure test - Part 7: Overlay welding
(ISO 15614-7:2007)
Descriptif et qualification d'un mode opératoire de soudage Anforderungen und Qualifizierung von Schweißverfahren
pour les matériaux métalliques - Épreuve de qualification für metallische Werkstoffe - Schweißverfahrensprüfung -
d'un mode opératoire de soudage - Partie 7: Rechargement Teil 7: Auftragschweißen (ISO 15614-7:2007)
par soudage (ISO 15614-7:2007)
This European Standard was approved by CEN on 21 May 2007.
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 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 Management Centre has the same status as the
official 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,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15614-7:2007: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 15614-7:2007) has been prepared by Technical Committee CEN/TC 121
"Welding", the secretariat of which is held by DIN, in collaboration with Technical Committee
ISO/TC 44 "Welding and allied processes".

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 December 2007, and conflicting national
standards shall be withdrawn at the latest by December 2007.

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 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,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

ANNEX ZA
(informative)
Relationship between this International Standard and the Essential
Requirements of EU Directive 97/23/EC

This International Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide one means of conforming to
Essential Requirements of the New Approach Directive 97/23/EC.

Once this standard is cited in the Official Journal of the European Communities under that Directive
and has been implemented as a national standard in at least one Member State, 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 International Standard and Directive 97/23/EC

Clause(s)/sub-clause(s) of Essential Requirements (ERs) Qualifying remarks/Notes
this International Standard of Directive 97/23/EC
Normative Clauses 3 to 9 Annex I, 3.1.2 Permanent joining
WARNING: Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.

INTERNATIONAL ISO
STANDARD 15614-7
First edition
2007-06-15
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 15614-7:2007(E)
©
ISO 2007
ISO 15614-7:2007(E)
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ii © ISO 2007 – All rights reserved

ISO 15614-7:2007(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Preliminary welding procedure specification (pWPS) . 2
4.1 Overlay welding . 2
4.2 Hardfacing . 2
4.3 Building-up . 3
4.4 Buttering . 3
5 Welding procedure test. 3
6 Test piece . 3
6.1 Shape and dimensions of test pieces. 3
6.2 Welding of test pieces. 5
7 Examination and testing . 6
7.1 Extent of testing. 6
7.2 Non-destructive testing (NDT). 6
7.3 Location and taking of test specimens . 6
7.4 Destructive testing. 8
7.5 Acceptance criteria. 10
7.6 Retesting. 11
8 Range of qualification . 11
8.1 General. 11
8.2 Qualification related to the manufacturer . 11
8.3 Qualification related to the material. 12
8.4 Qualification related to the filler material/overlay . 13
8.5 Common to welding procedures. 14
8.6 Specific to welding processes . 15
9 Welding procedure qualification record (WPQR) . 17
Annex A (informative) Welding procedure qualification record form (WPQR) . 18
Bibliography . 21

ISO 15614-7:2007(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 15614-7 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 121, Welding, in collaboration with Technical Committee ISO/TC 44, Welding and allied processes,
Subcommittee SC 10, Unification of requirements in the field of metal welding, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
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 and pressure 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: Resistance butt and flash welding
Requests for official interpretations of any aspect of this part of ISO 15614 should be directed to the
Secretariat of ISO/TC 44/SC 10 via your national standards body. A complete listing of these bodies can be
found at www.iso.org.
iv © ISO 2007 – All rights reserved

ISO 15614-7:2007(E)
Introduction
This part of ISO 15614 is part of a series of standards. Details of this series are given in ISO 15607:2003,
Annex A.
Previous procedure qualifications to former national standards or specifications should be taken into
consideration at the time of the enquiry or contract stage and agreed between the contracting parties.

INTERNATIONAL STANDARD ISO 15614-7:2007(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 carrying out 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.
Additional tests may be required by application standards.
This part of ISO 15614 applies to all welding processes suitable for overlay welding.
This part of ISO 15614 is applicable to all new welding procedures. However, it does not invalidate previous
welding procedure tests made to former national standards or specifications. Where additional tests are
carried out to make the qualification technically equivalent, they are only done on a test piece made in
accordance with this part of ISO 15614.
This part of ISO 15614 does not apply to overlay welding where cracks are intentionally produced (e.g. special
hardfacing applications).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references the latest edition of the referenced
document (including any amendments) applies.
ISO 3452, Non destructive testing — Penetrant inspection — General principles
ISO 5173, Destructive tests on welds in metallic materials — Bend tests
ISO 6947, Welds — Working positions — Definitions of angles of slope and rotation
ISO 9015-1, Destructive tests on welds in metallic materials — Hardness testing — Part 1: Hardness test on
arc welded joints
ISO 14174, Welding consumables — Fluxes for submerged arc welding — Classification
ISO 14175, Welding consumables — Shielding gases for arc welding and cutting
ISO/TR 15608, Welding — Guidelines for a metallic materials grouping system
ISO 15614-7:2007(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 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints
ISO 17639, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination of
welds
ISO 17640, Non-destructive testing of welds — Ultrasonic testing of welded joints
1)
ISO/TR 25901 , Welding and related processes — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TR 25901 apply.
4 Preliminary welding procedure specification (pWPS)
4.1 Overlay welding
The pWPS shall be in accordance with ISO 15609-1, ISO 15609-3 and ISO 15609-4. It shall specify the
tolerances for all the relevant parameters.
The welding procedure shall be qualified in accordance with Clauses 5 to 8.
4.2 Hardfacing
The pWPS shall be in accordance with ISO 15609-1, ISO 15609-2, ISO 15609-3 and ISO 15609-4. It shall
specify the tolerances for all the relevant parameters.
The welding procedure shall be qualified in accordance with Clauses 5 to 8.

1) To be published (revision of CEN/TR 14599).
2 © ISO 2007 – All rights reserved

ISO 15614-7:2007(E)
4.3 Building-up
The pWPS shall be in accordance with ISO 15609-1. It shall specify the tolerances for all the relevant
parameters.
The welding procedure shall be qualified in accordance with ISO 15613 or ISO 15614-1 and Clauses 5 to 8.
4.4 Buttering
The pWPS shall be in accordance with ISO 15609-1. It shall specify the tolerances for all the relevant
parameters.
If buttering is used for welding between dissimilar materials, the welding procedure shall be qualified in
accordance with ISO 15614-1.
If buttering is used to produce a metallurgically compatible weld metal between the parent material and
overlay welding or hardfacing, the welding procedure shall be qualified in accordance with ISO 15614-1 and
Clauses 5 to 8.
5 Welding procedure test
A test piece shall be welded using the same welding processes as the ones to be used in production
(e.g. strip overlay welding + manual metal arc overlay welding with covered electrode).
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 standardized test piece(s) in accordance with Figures 1
and 2, and 6.2. Parent material(s) shall be used which represent the material(s) to be welded in production.
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 Overlay welding and hardfacing
A minimum of three beads for the last layer is required.
6.1.3 Buffer layer
If a buffer layer is used in production welding, it shall be used in welding the test piece.

ISO 15614-7:2007(E)
Dimensions in millimetres
Key
1 buttering layer, if necessary
2 number of layers in accordance with the pWPS (see 6.1.2) or thickness of overlay deposit
3 welding direction
t parent material thickness
Figure 1 — Test piece — Plate
4 © ISO 2007 – All rights reserved

ISO 15614-7:2007(E)
Dimensions in millimetres
a)  Axial overlay welding — External c)  Circumferential overlay welding — External

b)  Axial overlay welding — Internal d) Circumferential overlay welding — Internal
Key
1 buttering layer, if necessary
2 welding direction
3 number of layers in accordance with the pWPS (see 6.1.2 and 6.1.3)
D outside diameter of tube
e
D inside diameter of tube
i
t parent material thickness
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 pWPS and under the
general conditions in production that they shall represent.
Welding and testing of the test pieces shall be witnessed by an examiner or an examining body.
ISO 15614-7:2007(E)
7 Examination and testing
7.1 Extent of testing
Testing includes both non-destructive testing (NDT) and destructive testing which shall be in accordance with
the requirements of Table 1.
Table 1 — Examination and testing of the test pieces
Test piece Type of test Extent of testing Footnote
Overlay welding Visual testing 100 % –
a
Ultrasonic testing 100 %
Surface crack detection 100 % b
Side bend test 2 specimens c
Macroscopic examination 1 specimen –
Microscopic examination 1 specimen d
Chemical analysis 1 specimen –
Delta ferrite content/ferrite number-FN 1 specimen a
Hardness testing 1 survey d
Hardfacing Visual testing 100 % –
b
Surface crack detection 100 %
Macroscopic examination 1 specimen –
Hardness testing 1 survey –
d
Microscopic examination 1 specimen
a
If required, in accordance with the application standard.
b
Penetrant testing or magnetic particle testing. For non-magnetic materials, penetrant testing.
c
Side bend test may be replaced by ultrasonic testing (UT) plus two additional macroscopic examinations.
d
Not required for material of group 1.

7.2 Non-destructive testing (NDT)
All NDT in accordance wi
...