oSIST prEN ISO 9606-1:2008
(Main)Qualification test of welders - Fusion welding - Part 1: Steels (ISO/DIS 9606-1:2008)
Qualification test of welders - Fusion welding - Part 1: Steels (ISO/DIS 9606-1:2008)
This International Standard defines the requirements for qualification testing of welders for fusion welding of steels.
It provides a set of technical rules for a systematic qualification test of the welder, and enables such qualifications to be uniformly accepted independently of the type of product, location and examiner/examining body.
When qualifying welders, the emphasis is placed on the welder’s ability to manually manipulate the electrode/ welding torch/ welding blowpipe and thereby producing a weld of acceptable quality.
The welding processes referred to in this standard include those fusion welding processes which are designated as manual or partly mechanized welding. It does not cover fully mechanized and automated welding processes (see ISO 14732).
Prüfung von Schweißern - Schmelzschweißen - Teil 1: Stähle (ISO/DIS 9606-1:2008)
Diese Internationale Norm legt die Bedingungen für eine Schweißerprüfung für das Schmelzschweißen von Stählen fest.
Sie stellt eine Reihe technischer Regeln für systematische Prüfungen von Schweißern auf und ermöglicht so, dass solche Qualifizierungen unabhängig von der Art des Erzeugnisses, des Ortes und des Prüfers/der Prüfstelle einheitlich akzeptiert werden.
Wenn Schweißer qualifiziert werden, liegt der Schwerpunkt auf der Fähigkeit des Schweißers, den Elektrodenhalter/die Schweißpistole/den Schweißbrenner so zu handhaben, dass damit eine Schweißung von zulässiger Qualität erzeugt wird.
Die Schweißprozesse nach dieser Norm schließen nur solche Schweißprozesse ein, die als manuelles Schweißen oder teilmechanisches Schweißen bezeichnet werden. Sie schließen nicht die vollmechanischen und automatischen Schweißprozesse ein (siehe ISO 14732).
Épreuve de qualification des soudeurs - Soudage par fusion - Partie 1: Aciers (ISO/DIS 9606-1:2008)
Preskušanje varilcev - Talilno varjenje - 1. del: Jeklo (ISO/DIS 9606-1:2008)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2008
Preskušanje varilcev - Talilno varjenje - 1. del: Jeklo (ISO/DIS 9606-1:2008)
Qualification test of welders - Fusion welding - Part 1: Steels (ISO/DIS 9606-1:2008)
Prüfung von Schweißern - Schmelzschweißen - Teil 1: Stähle (ISO/DIS 9606-1:2008)
Épreuve de qualification des soudeurs - Soudage par fusion - Partie 1: Aciers (ISO/DIS
9606-1:2008)
Ta slovenski standard je istoveten z: prEN ISO 9606-1
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2008
ICS 25.160.10 Will supersede EN 287-1:2004
English Version
Qualification test of welders - Fusion welding - Part 1: Steels
(ISO/DIS 9606-1:2008)
Épreuve de qualification des soudeurs - Soudage par Prüfung von Schweißern - Schmelzschweißen - Teil 1:
fusion - Partie 1: Aciers (ISO/DIS 9606-1:2008) Stähle (ISO/DIS 9606-1:2008)
This draft European Standard is submitted to CEN members for second parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 121.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
: This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
Warning
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 9606-1:2008: E
worldwide for CEN national Members.
Contents Page
Foreword.3
Foreword
This document (prEN ISO 9606-1:2008) has been prepared by Technical Committee ISO/TC 44 "Welding and
allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding” the secretariat of which is
held by DIN.
This document is currently submitted to the second parallel Enquiry.
This document will supersede EN 287-1:2004.
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 EC Directive(s).
Endorsement notice
The text of ISO/DIS 9606-1:2008 has been approved by CEN as a prEN ISO 9606-1:2008 without any
modification.
DRAFT INTERNATIONAL STANDARD ISO/DIS 9606-1.2
ISO/TC 44/SC 11 Secretariat: SUTN
Voting begins on: Voting terminates on:
2008-04-24 2008-08-24
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Qualification testing of welders — Fusion welding —
Part 1:
Steels
Épreuve de qualification des soudeurs — Soudage par fusion —
Partie 1: Aciers
(Revision of first edition ISO 9606-1:1994 and ISO 9606-1:1994/Amd.1:1998)
ICS 25.160.01
ISO/CEN PARALLEL ENQUIRY
The CEN Secretary-General has advised the ISO Secretary-General that this ISO/DIS covers a subject
of interest to European standardization. In accordance with the ISO-lead mode of collaboration as
defined in the Vienna Agreement, consultation on this ISO/DIS has the same effect for CEN
members as would a CEN enquiry on a draft European Standard. Should this draft be accepted, a
final draft, established on the basis of comments received, will be submitted to a parallel two-month FDIS
vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©
International Organization for Standardization, 2008
ISO/DIS 9606-1.2
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ii ISO 2008 – All rights reserved
ISO/DIS 9606-1.2 (E)
Contents Page
Foreword .v
Introduction.2
1 Scope.2
2 Normative references.2
3 Terms and definitions .3
4 Symbols and abbreviated terms .5
4.1 General .5
4.2 Reference numbers of welding processes .5
4.3 Abbreviations.5
4.3.1 For test pieces .5
4.3.2 For consumables.6
4.3.3 For other weld details .6
4.3.4 For bend tests.6
5 Essential variables and range of qualification .6
5.1 General .6
5.2 Welding processes .7
5.3 Product type.8
5.4 Type of weld.8
5.5 Filler material groups.8
5.5.1 Steel groups of filler material.8
5.5.2 Range of qualification.9
5.6 Welding consumables.9
5.7 Dimensions .10
5.8 Welding positions.12
5.9 Weld details.13
6 Examination and testing.14
6.1 Examination .14
6.2 Test pieces .15
6.3 Welding conditions .18
6.4 Test methods .19
6.5 Test piece and test specimen .19
6.5.1 General .19
6.5.2 Butt weld in plate and pipe.19
6.5.3 Fillet weld on plate .21
6.5.4 Fillet weld on pipe .23
6.6 Test record .23
7 Acceptance requirements for test pieces.23
8 Re-tests.24
9 Period of validity.24
9.1 Initial qualification .24
9.2 Confirmation of the validity.24
9.3 Prolongation of qualification.24
9.4 Revocation of qualification.25
10 Certificate .25
11 Designation .25
Annex A (informative) Welder's qualification test certificate .27
ISO/DIS 9606-1.2 (E)
Annex B (informative) Job knowledge .29
B.1 General.29
B.2 Requirements.29
B.2.1 Welding equipment.29
B.2.2 Welding process .30
B.2.3 Parent metals .30
B.2.4 Welding consumables.30
B.2.5 Safety precautions.31
B.2.6 Welding sequences/procedures.31
B.2.7 Joint preparation and weld representation.31
B.2.8 Weld imperfections.32
B.2.9 Welder qualification.32
Annex C (informative) FW/BW test assembly option.33
Annex ZA (informative) Relationship between this International Standard and the Essential
requirements of EU Directive 97/23…………………………………………………………………………………34
iv © ISO 2008 – All rights reserved
ISO/DIS 9606-1.2 (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 9606-1 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 11, Qualification requirements for welding and allied processes personnel.
This second edition cancels and replaces the first edition (ISO 9606-1:1994), which has been technically
revised. It also incorporates ISO 9606-1:1994/Amd 1:1998.
Requests for official interpretations of any aspect of this standard should be directed to the Secretariat of
ISO/TC 44/SC 11 via your national standards body, a complete listing which can be found at www.iso.org.
ISO 9606 consists of the following parts, under the general title Qualification testing of welders — Fusion
welding:
Part 1: Steels
Part 2: Aluminium and aluminium alloys
Part 3: Copper and copper alloys
Part 4: Nickel and nickel alloys
Part 5: Titanium and titanium alloys, zirconium and zirconium alloys
Annexes A and B of this part of ISO/DIS 9606-1:2007 are for information only.
ISO/DIS 9606-1.2 (E)
Introduction
The ability of a welder to follow verbal or written instructions and verification of a person's skills are important
factors in ensuring the quality of the welded product.
The testing of a welder's skill in accordance with this standard depends on welding techniques and conditions
used in which uniform rules are complied with, and standard test pieces are used.
The principle of this standard is that a qualification test qualifies a welder not only for the conditions used in
the test, but also for all other conditions which are considered easier to weld in accordance with this standard.
It is presumed that the welder has received training and/or has industrial practice within the range of
qualification.
The qualification test can be used to qualify a welding procedure and a welder provided that all the relevant
requirements e.g. test piece dimensions and testing requirements are satisfied (see ISO 15614-1).
iv © ISO 2008 – All rights reserved
DRAFT INTERNATIONAL STANDARD ISO/DIS 9606-1.2:2008(E)
Qualification testing of welders — Fusion welding —
Part 1:
Steels
1 Scope
This International Standard defines the requirements for qualification testing of welders for fusion welding of
steels.
It provides a set of technical rules for a systematic qualification test of the welder, and enables such
qualifications to be uniformly accepted independently of the type of product, location and examiner/examining
body.
When qualifying welders, the emphasis is placed on the welder’s ability to manually manipulate the electrode/
welding torch/ welding blowpipe and thereby producing a weld of acceptable quality.
The welding processes referred to in this standard include those fusion welding processes which are
designated as manual or partly mechanized welding. It does not cover fully mechanized and automated
welding processes (see ISO 14732).
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 referred document
(including any amendments) applies.
ISO 857-1, Welding and allied processes — Vocabulary — Part 1: Welding processes
ISO 4063, Welding and allied processes — Nomenclature of processes and reference numbers
ISO 5173, Destructive tests on welds in metallic materials — Bend tests
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded)
— Quality levels for imperfections
ISO 6947, Welds — Working positions — Definitions of angles of slope and rotation
ISO 9017, Destructive tests on welds in metallic materials — Fracture test
ISO/TR 15608, Welding — Guidelines for a metallic material grouping system
ISO/DIS 9606-1.2:2008(E)
ISO 15609-1, Specification and approval of welding procedures for metallic materials — Welding procedure
specification — Part 1: Arc welding
ISO 15609-2, Specification and approval of welding procedures for metallic materials — Welding procedure
specification — Part 2: Gas welding
ISO 17636 , Non-destructive examination of welds — Radiographic examination of welded joints
ISO 17637, Non-destructive examination of fusion welds — Visual examination
ISO 17639, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination of
welds
ISO 17640, Non destructive examination of welds — Ultrasonic examination of welded joints
ISO/TR 25901, Welding and related processes — Vocabulary
ISO 3834-1:2005 Quality requirements for fusion welding of metallic materials – Part 1: Criteria for the
selection of the appropriate level of quality requirements
ISO 3834-2:2005 Quality requirements for fusion welding of metallic materials – Part 2: Comprehensive
quality requirements
ISO 3834-3:2005 Quality requirements for fusion welding of metallic materials – Part 3: Standard quality
requirements
ISO 3834-4:2005 Quality requirements for fusion welding of metallic materials – Part 4: Elementary quality
requirements
ISO 3834-5:2005 Quality requirements for fusion welding of metallic materials – Part 5: Documents with which
it is necessary to conform to claim conformity to the quality requirements of ISO 3834-2, ISO 3834-3 or ISO
3834-4.
ISO/TR 3834-6:2007 Quality requirements for fusion welding of metallic materials – Part 6: Guidelines on
implementing 3834
ISO 15607: 2003 Specification and qualification of welding procedures for metallic materials – General rules
3 Terms and definitions
For the purposes of this part of ISO 9606, the following terms and definitions apply.
3.1
welder
person who holds and manipulates the electrode holder, welding torch or blowpipe by hand
[ISO/TR 25901]
3.2
manufacturer
person or organization that is responsible for the welding production
[ISO15607]
3.3
examiner
person who has been appointed to verify compliance with the applicable standard
2 © ISO 2008 – All rights reserved
ISO/DIS 9606-1.2:2008(E)
NOTE In certain cases, an external independent examiner can be required.
[ISO/TR 25901]
3.4
examining body
organization that has been appointed to verify compliance with the applicable standard
NOTE In certain cases, an external independent examining body can be required.
[ISO/TR 25901]
3.5
material backing
backing using material for the purpose of supporting molten weld metal
3.6
gas backing
backing using gas primarily for the purpose of preventing oxidation
3.7
flux backing
backing using flux primarily for the purpose of preventing oxidation
NOTE In submerged arc welding flux backing may also reduce the risk of a weld pool collapse
3.8
consumable insert
filler material that is placed at the root of the joint before welding to be completely fused into the root
3.9
layer
stratum of weld metal consisting of one or more runs
[ISO/TR 25901]
3.10
root run
in multi layer welding, the run(s) of the first layer deposited in the root
[ISO/TR 25901]
3. 11
filling run
in multi layer welding, the run(s) deposited after the root run(s) and before the capping run(s)
[ISO/TR 25901]
3.12
capping run
in multi layer welding, the run(s) visible on the weld face(s) after completion of welding
[ISO/TR 25901]
3.13
weld metal thickness
thickness of the weld metal excluding any reinforcement
[ISO/TR 25901]
ISO/DIS 9606-1.2:2008(E)
3.14
leftward welding
gas welding technique in which the filler rod is moved ahead of the blow pipe in relation to the welding
direction
[ISO/TR 25901]
3.15
rightward welding
gas welding technique in which the filler rod is moved behind the blow pipe in relation to the welding direction
[ISO/TR 25901]
3.16
autogenous welding
fusion welding made without filler material
4 Symbols and abbreviated terms
4.1 General
The following abbreviations and reference numbers shall be used when completing the welder's qualification
test certificate (see Annex A).
4.2 Reference numbers of welding processes
This standard covers the following manual or partly mechanized welding processes (reference numbers of
welding processes for symbolic representations are listed in ISO 4063):
111 manual metal arc welding;
114 self-shielded tubular-cored arc welding;
121 submerged arc welding with one wire electrode;
125 submerged arc welding with tubular cored electrode;
131 metal inert gas welding (MIG welding);
135 metal active gas welding (MAG welding);
136 tubular cored metal arc welding with active gas shield;
141 tungsten inert gas arc welding (TIG welding);
15 plasma arc welding;
311 oxy-acetylene welding.
NOTE The principles of this standard may be applied to other fusion welding processes.
4.3 Abbreviations
4.3.1 For test pieces
a design throat thickness
BW butt weld
D outside pipe diameter
FW fillet weld
l length of test piece
l half width of test piece
l examination length
f
P plate
s weld metal thickness or fused metal thickness in butt welds
t material thickness of test piece (plate or wall thickness)
4 © ISO 2008 – All rights reserved
ISO/DIS 9606-1.2:2008(E)
t material thickness of test piece for welding process 1
t material thickness of test piece for welding process 2
1)
T pipe
z leg length of fillet weld.
4.3.2 For consumables
nm no filler metal
A acid covering
B basic covering or electrode core - basic
C cellulosic covering
M electrode core - metal powder
P electrode core - rutile, fast freezing slag
R rutile covering or electrode core – rutile, slow freezing slag
RA rutile-acid covering
RB rutile-basic covering
RC rutile-cellulosic covering
RR rutile-thick covering
S solid wire/rod
V electrode core - rutile or basic / fluoride
W electrode core - basic / fluoride, slow freezing slag
Y electrode core - basic / fluoride, fast freezing slag
Z electrode core - other types
4.3.3 For other weld details
fb flux backing
bs welding from both sides
ci consumable insert
lw leftward welding
mb material backing
gb gas backing
ml multi layer
nb welding with no material backing
rw rightward welding
sl single layer
ss single-side welding
4.3.4 For bend tests
A minimum tensile elongation after fracture required by the material specification
d diameter of the former or the inner roller
t thickness of the bend test specimen
s
5 Essential variables and range of qualification
5.1 General
The qualification of welders is based on essential variables. For each essential variable a range of
qualification is defined. All test pieces shall be welded using the essential variables independently, except for
5.7 and 5.8. If the welder has to weld outside the range of welder qualification a new qualification test is
required. The essential variables are:
1) The word "pipe" alone or in combination, is used to mean "pipe", "tube" or "hollow section".
ISO/DIS 9606-1.2:2008(E)
welding process(es)
product type (plate and pipe),
type of weld (butt and fillet),
filler material group,
welding consumable,
dimension (material thickness and outside pipe diameter),
welding position,
weld detail (backing, consumable insert, backing flux, single side welding, both side welding, single layer,
multi layer, leftward welding, rightward welding).
5.2 Welding processes
Welding processes are defined in ISO 857-1 and listed in 4.2.
Each test normally qualifies only one welding process. A change of welding process requires a new
qualification test. Exceptions are the changes of solid wire electrode (welding process 135) to metal cored
electrode (welding process 136) or vice versa which do not require a new qualification test (see Table 4).
However, it is permitted for a welder to be qualified for two or more welding processes by welding a single test
piece (multi process joint) or by two or more separate qualification tests. The ranges of qualification
concerning the weld material thickness for each welding process used and for the multi process joint for butt
welds are given in Tables 1 and 6).
Table 1 — Thickness range for single and multi process joints for butt welds
Process Thickness range qualified according
to Table 5
Welding process used for the test piece
Single process joint Multi process joint
according to table 5
for welding
according to table 5
process 1: s = s
with s= s + s
1 2
for welding
process 2: s = s
1 Welding process 1 (ss nb)
2 Welding process 2 (ss mb)
according to table 5 according to table 5
for welding s = s + s
1 2
process 1: ts= s
Welding process 1
for welding
only for welding of
process 2: ts= s
2 the root area
2 Welding process 2
3 Welding with backing (ss mb)
4 Welding without backing (ss nb)
6 © ISO 2008 – All rights reserved
ISO/DIS 9606-1.2:2008(E)
Process Thickness range qualified according
to Table 5
Welding process used for the test piece
Single process joint Multi process joint
1 Welding process 1 s ≥ 3mm
5.3 Product type
The qualification test shall be carried out on plate, pipe or other suitable product form. The following criteria
are applicable:
a) Test piece welds in pipes, outside pipe diameter D > 25 mm, cover welds in plates;
b) Test piece welds in plates cover welds in fixed pipe of outside pipe diameter D ≥ 150 mm, for welding
positions, PB (FW),PD (FW), PC (BW),; in accordance with Tables 9 and 10;
c) Test piece welds in plates cover welds in pipes of outside pipe diameter D > 75 mm for welding positions
PA, PB, PC, PD rotated.
5.4 Type of weld
The qualification test shall be carried out as butt or fillet weld. The following criteria are applicable:
a) butt welds cover butt welds in any type of joint except branch connections (see also 5.4 c));
b) butt welds do not qualify fillet welds or vice versa; It is however permissible to qualify a fillet weld in
combination with a butt weld, e.g. single-bevel joint preparation with permanent material backing (a
minimum test piece thickness of 10 mm shall be used). See Annex C.
For this combination test all testing requirements specified in this part of ISO 9606 shall be fulfilled and
associated ranges of qualification shall be given based on the test conditions.
c) butt welds in pipes qualify branch connections with an angle ≥ 60° and the same range of qualification as
in Tables 1 to 12. For a branch weld the range of qualification is based on the outside pipe diameter of the
branch;
d) for applications where the type of weld cannot be qualified by means of either a butt or fillet weld test then
a specific test piece should be used to qualify the welder, when specified.
5.5 Filler material groups
5.5.1 Steel groups of filler material
In order to reduce the number of qualification tests, filler materials with similar welding characteristics are
grouped according to ISO/TR 15608.
The grouping system of ISO TR 15608 is used below to group filler metals. When a parent metal designation
is used in Table 2, any filer metal that is compatible with and can be used to weld that parent metal is included
as indicated in Table 2.
ISO/DIS 9606-1.2:2008(E)
5.5.2 Range of qualification
The welding with one filler material in a group confers qualification on the welder for the welding with all other
filler materials within the same group as well as other groups according to Table 2.
When welding with filler materials outside the grouping system a separate test is required.
Table 2 — Range of qualification for filler material
Filler material Range of qualification
a
group used
b,c b,c
1 2 3 4 5 6 7 8 9 10 11
in the test
1 X X X X X X X – X – X
2 X X X X X X X – X – X
3 X X X X X X X – X – X
4 X X X X X X X – X – X
5 X X X X X X X – X – X
6 X X X X X X X – X – X
7 X X X X X X X – X – X
8 – – – – – – – X – X –
9 X X X X X X X – X – X
10 – – – – – – – X – X –
11 X X X X X X X – X – X
a
Material group according to ISO/TR 15608.
b
At least one part of the test piece shall be from parent material group 8 or 10.
c
When testing using group 8 or 10 filler materials then all parent material groups 1 through to 11 and all combinations among those groups
are qualified only when using filler materials from group 8 or 10.
Key:
X indicates those filler material groups for which the welder is qualified.
– indicates those filler material groups for which the welder is not qualified.
5.6 Welding consumable
Welding with filler material qualifies for welding without filler material, but not vice versa.
The ranges of qualification for welding consumables are given in Tables 3 and 4.
8 © ISO 2008 – All rights reserved
ISO/DIS 9606-1.2:2008(E)
a
Table 3 — Range of qualification for covered electrodes
Range of qualification
Type of covering used
Welding
b
process
in the test
A, RA, RB, RC, RR, R B C
A, RA, RB, RC, RR, R X – –
111 B X X –
C – – X
a
Abbreviations see 4.3.2.
b
The type of covering used in the qualification test of welders for root run welding without backing (ss nb) is the type of covering
qualified for root run welding in production both with backing and no backing. (ss mb and ss nb)
Key:
X indicates those welding consumables for which the welder is qualified.
– indicates those welding consumables for which the welder is not qualified.
a, b
Table 4 — Range of qualification for welding consumables
Welding Consumables used in test piece Range of qualification
Process
Solid wire Metal Flux Flux cored wire
(S) cored wire cored (R, P, V, W, Y, Z)
(M) wire (B)
131, 135, Solid wire electrode (S) X X - -
Metal cored electrode (M) X X - -
136, 114
Flux cored electrode (B) - - X X
136, 114 Flux cored electrode (R, P, V, W, Y, Z) - - - X
141 Solid wire / rod (S) X X - -
Metal cored wire / rod (M) X X - -
141 Flux cored wire / rod (B) - - X -
141 Flux cored wire/rod (R, P, V, W, Y, Z) - - - X
15 Solid wire (S) X X - -
Metal cored wire (M) X X - -
121 Solid wire electrode (S) X X - -
125 Metal cored electrode (M) X X - -
a
Abbreviations see 4.3.2.
b
The type of welding consumables used in the qualification test of welders for root run welding without backing (ss nb) is the type of
welding consumables qualified for root run welding in production both with and without backing (ss mb and ss nb).
Key:
X indicates those welding consumables for which the welder is qualified.
– indicates those welding consumables for which the welder is not qualified
5.7 Dimensions
The welder qualification test of butt welds is based on the weld metal thickness and outside pipe diameters.
The ranges of qualification are specified in Tables 5 and 6.
ISO/DIS 9606-1.2:2008(E)
NOTE It is not intended that weld metal thickness or outside pipe diameters should be measured precisely but rather
the general philosophy behind the values given in tables 5 and 6 should be applied.
For fillet welds the range of qualification for material thickness is specified in Table 7.
In the case of branch welding the weld metal thickness criteria to which Table 5 applies and the outside pipe
diameter criteria to which Table 6 applies is as follows:
Set on: The weld metal thickness and outside pipe diameter of the branch;
Set in or set through: The weld metal thickness of the main pipe or shell and the outside pipe diameter of
the branch.
For test pieces of different outside pipe diameters and weld metal thicknesses, the welder is qualified for:
thinnest through to the thickest weld metal and/or base metal thickness, and
the smallest through to the largest diameter (refer to Tables 5 and 6).
Table 5 — Range of qualification of weld metal thickness for butt welds
Dimension in millimetres
e
Range of qualification
Weld metal thickness of test piece
s
a c
s to 3
or
a c
s to 2s
s < 3
whichever is greater
b c
3 ≤ s < 12
3 to 2s
d
s ≥ 12 > 3
a
For oxy-acetylene welding (311): s to 1,5s
b
For oxy-acetylene welding (311): 3 to 1,5 s
c
Welded at least in 3 layers
d
For multi processes, s is the weld metal thickness for each process.
a
Table 6 — Range of qualification for outside pipe diameter
Dimension in millimetres
Outside pipe diameter of test piece Range of qualification
D
D ≤ 25 D to 2 × D
D > 25
≥ 0,5 × D (25 mm min.)
a
For structural hollow sections, D is the dimension of the smaller side.
10 © ISO 2008 – All rights reserved
ISO/DIS 9606-1.2:2008(E)
a
Table 7 — Range of qualification of material thickness for fillet welds
Dimension in millimetres
Material thickness of test piece Range of qualification
t
t < 8 t to 2t or 3 whichever is greater
t ≥ 8 ≥ 3
a
See also Table 12.
5.8 Welding positions
The range of qualification for each welding position is given in Tables 8 and 9. The welding positions and
symbols refer to ISO 6947.
The test pieces shall be welded in accordance with the nominal angles of the welding positions according
to ISO 6947.
The welding positions J-L045 and H-L045 for pipes qualify for all pipe angles.
Welding two pipes with the same outside pipe diameter, one in welding position PF and one in welding
position PC, also covers the range of qualification of a pipe welded in welding position H-L045.
Welding two pipes with the same outside pipe diameter, one in welding position PG and one in welding
position PC, also covers the range of qualification of a pipe welded in welding position J-L045.
Outside pipe diameters D ≥ 150 mm can be welded in two welding positions (PF or PG 2/3 of circumference,
PC 1/3 of circumference) using only one test piece.
Table 8 — Range of qualification for welding positions for butt welds
Welding Range of qualification
position
PA PC PE PF PG H-L045 J-L045
of test
piece
PA X – – – – – –
PC X X – – – – –
PE (plate) X X X – – – –
PF (plate) X – – X – – –
PF (pipe) X – X X – – –
PG (plate) – – – – X – –
PG (pipe) X – X – X – –
H-L045 X X X X – X –
J-L045 X X X – X – X
Key:
X indicates those welding positions for which the welder is qualified
– indicates those welding positions for which the welder is not qualified
Note: See also 5.3
ISO/DIS 9606-1.2:2008(E)
Table 9 — Range of qualification for welding positions for fillet welds
Welding Range of qualification
position
PA PB PC PD PE PF PG
of test
piece
PA X – – – – – –
PB X X – – – – –
PC X X X – – – –
PD X X X X X – –
PE (plate) X X X X X – –
PF (plate) X X – – – X –
PF (pipe) X X – X X X –
PG (plate) – – – – – – X
PG (pipe) X X – X X – X
Key:
X indicates those welding positions for which the welder is qualified
– indicates those welding positions for which the welder is not qualified
Note: See also 5.3
5.9 Weld details
Depending on the weld details, the ranges of qualification are shown in Tables 10 to12.
When welding with process 311 a change from rightward welding to leftward welding and vice versa requires
a new qualification test.
Table 10 — Range of qualification for backings and consumable inserts
Range for qualification for backing and consumable inserts
Test
No Material Welding Gas Consumabl Flux
condition
backing backing from both backing e insert (ci) backing
(nb) (mb) sides (bs) (gb) (fb)
No backing
X X X X - X
(nb)
Material
- X X - - -
backing (mb)
Welding from
- X X - - -
both sides (bs)
Gas backing
- X X X - -
(gb)
Consumable
- X X - X -
insert (ci)
Flux backing
- X X - - X
(fb)
Key: X indicates those conditions for which the welder is qualified
– indicates those conditions for which the welder is not qualified
12 © ISO 2008 – All rights reserved
ISO/DIS 9606-1.2:2008(E)
Table 11 — Range of qualification for weld details on butt welds
Weld details of test piece
Range of qualification
single-side welding / single-side welding / welding from both sides
welding without backing welding with backing (bs)
(ss nb) (ss mb)
single-side welding /welding without
X X X
backing (ss nb)
single-side welding /welding with
– X X
backing (ss mb)
welding from both sides (bs) – X X
Key:
X indicates those welds for which the welder is qualified
– indicates those welds for which the welder is not qualified
Table 12 — Range of qualification of layer technique for fillet welds
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