SIST EN ISO 9606-2:2005

SLOVENSKI STANDARD
01-marec-2005
1DGRPHãþD
SIST EN 287-2:1996
SIST EN 287-2:1996/A1:2001
Preskušanje varilcev - Talilno varjenje - 2. del: Aluminij in aluminijeve zlitine (ISO
9606-2:2004)
Qualification test of welders - Fusion welding - Part 2: Aluminium and aluminium alloys
(ISO 9606-2:2004)
Prüfung von Schweißern - Schmelzschweißen - Teil 2: Aluminium und
Aluminiumlegierungen (ISO 9606-2:2004)
Epreuve de qualification des soudeurs - Soudage par fusion - Partie 2 : Aluminium et
alliages d'aluminium (ISO 9606-2:2004)
Ta slovenski standard je istoveten z: EN ISO 9606-2:2004
ICS:
03.100.30 Vodenje ljudi Management of human
resources
25.160.10 Varilni postopki in varjenje Welding processes
77.120.10 Aluminij in aluminijeve zlitine Aluminium and aluminium
alloys
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 9606-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 25.160.10 Supersedes EN 287-2:1992
English version
Qualification test of welders - Fusion welding - Part 2: Aluminium
and aluminium alloys (ISO 9606-2:2004)
Epreuve de qualification des soudeurs - Soudage par Prüfung von Schweißern - Schmelzschweißen - Teil 2:
fusion - Partie 2 : Aluminium et alliages d'aluminium (ISO Aluminium und Aluminiumlegierungen (ISO 9606-2:2004)
9606-2:2004)
This European Standard was approved by CEN on 23 September 2004.

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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.

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COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9606-2:2004: E
worldwide for CEN national Members.

Contents
page
Foreword.4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .7
4 Symbols and abbreviated terms .7
4.1 General.7
4.2 Reference numbers of welding processes .7
4.3 Abbreviations.8
5 Essential variables and range of qualification .8
5.1 General.8
5.2 Welding processes .9
5.3 Product type .10
5.4 Type of weld .11
5.5 Material groups .11
5.6 Welding consumables.12
5.7 Dimensions.12
5.8 Welding positions.13
5.9 Weld details .14
6 Examination and testing .15
6.1 Supervision .15
6.2 Shapes, dimensions and numbers of test pieces .15
6.3 Welding conditions.19
6.4 Test methods.20
6.5 Test piece and test specimen.20
6.6 Test record .25
7 Acceptance requirements for test pieces .25
8 Re-tests.26
9 Period of validity.26
9.1 Initial qualification .26
9.2 Confirmation of the validity .26
9.3 Prolongation of qualification.26
10 Certificate .26
11 Designation .27
Annex A (informative)  Welder's qualification test certificate.28
Annex B (informative)  Designation examples .29
Annex C (informative)  Job knowledge .33
Annex D (informative)  Variables to be confirmed and traceable for prolongation.36
Annex ZA (informative)  Clauses of this European Standard addressing Essential Requirements of
EU Directive 97/23/EC.37
Annex ZB (normative) Normative references to International publications with their corresponding
European publications .38
Bibliography .39
Tables
Table 1 — Thickness range for single and multi process joints for butt welds.10
Table 2 — Range of qualification for parent material .12
Table 3 — Range of qualification of material thickness and weld metal thickness (multi process) of test piece for
butt welds .13
Table 4 — Range of qualification for outside pipe diameter.13
a
Table 5 — Range of qualification of material thickness of test piece for fillet welds .13
Table 6 — Range of qualification for welding positions.14
Table 7 — Range of qualification for weld details on butt welds.14
Table 8 — Range of qualification of layer technique for fillet welds.15
Table 9 — Test methods .20
Table D.1 —Variables to be confirmed and traceable for prolongation .36
Table ZA — Correspondence between this European standard and the Directive 97/23/EC .37

Figures
Figure 1 — Dimensions of test piece for a butt weld in plate .16
Figure 2 — Dimensions of test piece for a fillet weld on plate.17
Figure 3 — Dimensions of test piece for a butt weld in pipe .18
Figure 4 — Dimensions of test piece for a fillet weld on pipe.19
Figure 5 — Preparation and fracture testing of test specimens for a butt weld in plate.22
Figure 6 — Examination length for fracture testing for a fillet weld on plate.22
Figure 7 — Preparation and locations of test specimens for a butt weld in pipe .24
Figure 8 — Example for notch tensile test for pipe test piece outside diameter ≤ 25 mm .24
Figure 9 — Preparation and fracture testing of test specimens for a fillet weld on pipe .25

Foreword
This document (EN ISO 9606-2:2004) 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 June 2005, and conflicting national standards shall be withdrawn at the latest by
June 2005.
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.
This document supersedes EN 287-2:1992.
This series of standards consists of the following parts, under the general title Qualification test of welders —
Fusion welding:
 EN 287-1: Steels
 EN ISO 9606-2: Aluminium and aluminium alloys
 EN ISO 9606-3: Copper and copper alloys )
1)
 EN ISO 9606-4: Nickel and nickel alloys
1)
 EN ISO 9606-5: Titanium and titanium alloys, zirconium and zirconium alloys
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

)
The general title of these document is Approval testing of welders - Fusion welding
Introduction
The ability of a welder to follow verbal or written instructions and verification of a welder's skills are important
factors in ensuring the quality of the welded product.
The testing of a welder's skill in accordance with this document depends on welding techniques and conditions
used in which uniform rules are complied with, and standard test pieces are used.
The principle of this document is that a qualification test qualifies the welder not only for the conditions used in the
test, but also for all joints which are considered to weld easier on the presumption that the welder has received a
particular 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, are satisfied (see EN ISO 15614-2).
Qualifications in accordance with EN 287-2 or ISO 9606-2 existing at the date of publication of this document are,
at the end of their period of validity, to be interpreted in accordance with the requirements of this standard.
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.
1 Scope
This document specifies the requirements for qualification of welders for fusion welding of aluminium and
aluminium alloys.
This document provides a set of technical rules for systematic qualification of welders which are independent of
product type, location and examiner/examining body.
When qualifying welders, the emphasis is placed on the welder's ability to manually manipulate the welding torch
and thereby produce a weld of acceptable quality.
The welding processes referred to in this document include those fusion welding processes which are designated
as manual or partly mechanized welding. It does not qualify fully mechanized and automated welding processes
(see EN 1418 or 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 referenced document (including any
amendments) applies.
EN 910, Destructive tests on welds in metallic materials — Bend tests.
EN 970, Non-destructive examination of fusion welds — Visual examination.
EN 1320, Destructive tests on welds in metallic materials — Fracture test.
EN 1321, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination of welds.
EN 1418:1997, Welding personnel — Approval testing of welding operators for fusion welding and resistance weld
setters for fully mechanized and automatic welding of metallic materials.
EN 1435, Non-destructive examination of welds — Radiographic examination of welded joints.
EN 30042, Arc-welded joints in aluminium and its weldable alloys — Guidance on quality levels for imperfections
(ISO 10042:1992).
EN ISO 4063, Welding and allied processes — Nomenclature of processes and reference numbers
(ISO 4063:1998).
EN ISO 6947, Welds — Working positions — Definitions of angles of slope and rotation (ISO 6947:1993).
EN ISO 15607:2003, Specification and qualification of welding procedures for metallic materials — General rules
(ISO 15607:2003).
EN ISO 15609-1:2004, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 1: Arc welding (ISO 15609-1:2004).
EN ISO 15614-2, Specification and qualification of welding procedures for metallic materials — Welding procedure
test — Part 2: Arc welding of aluminium and its alloys (ISO 15614-2:2004).
ISO 857-1, Welding and allied processes — Vocabulary — Part 1: Metal welding processes.
NOTE A list of ISO Standards conforming to these EN Standards is given in Annex ZB.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 15607:2003 and EN 1418:1997 and
the following apply.
3.1
welder
person who holds and manipulates the electrode holder, welding torch or blowpipe by hand
3.2
examiner
person who has been appointed to verify compliance with the applicable standard
NOTE In certain cases, an external independent examiner may be required.
3.3
examining body
organization that has been appointed to verify compliance with the applicable standard
NOTE In certain cases, an external independent examining body may be required.
3.4
backing
material placed at the reverse side of a joint preparation for the purpose of supporting molten weld metal
3.5
root run
in multi layer welding, the run(s) of the first layer deposited in the root
3.6
filling run
in multi layer welding, the run(s) deposited after the root run(s) and before the capping run(s)
3.7
capping run
in multi layer welding, the run(s) visible on the weld face(s) after completion of welding
3.8
weld metal thickness
thickness of the weld metal excluding any reinforcement
4 Symbols and abbreviated terms
4.1 General
Where the full wording is not used, 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 document qualifies the following manual or partly mechanized welding processes (reference numbers of
welding processes for symbolic representation are listed in EN ISO 4063):
131 metal inert gas welding (MIG welding);
141 tungsten inert gas arc welding (TIG welding);
15 plasma arc welding.
NOTE The principles of this document 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
2)
P plate
s weld metal thickness for butt welds only (plate thickness or pipe wall thickness for single process)
s weld metal thickness for welding process 1
s weld metal thickness for welding process 2
t material thickness of test piece (plate or wall thickness)
t material thickness of test piece for welding process 1
t material thickness of test piece for welding process 2
3)
T pipe
z leg length of fillet weld.
4.3.2 For welding consumables
nm no filler metal
S solid wire/rod
4.3.3 For other weld details
bs welding from both sides
mb welding with backing
ml multi layer
nb welding without backing
sl single layer
ss single-side welding
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 qualification a new qualification test is required. The essential variables
are:
a) welding processes;
b) product type (plate and pipe);
c) type of weld (butt and fillet);
d) material groups;
2) The word "plate" alone or in combination is used to mean "wrought plate" and "flat extruded bars".
3) The word "pipe" alone or in combination, is used to mean "pipe", "tube" or "hollow section".
e) welding consumables;
f) dimensions (material thickness and outside pipe diameter);
g) welding positions;
h) weld details (backing, single side welding, both side welding, single layer, multi layer).
5.2 Welding processes
Welding processes shall be as defined in ISO 857-1 and listed in 4.2.
Each test usually qualifies only one welding process. A change of welding process requires a new qualification test.
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 for each
welding process used and for the multi processes joint for butt welds are given in Table 1.
For welding process 141 a change in current from direct current to alternating current and vice versa requires a
new qualification test.
Table 1 — Thickness range for single and multi process joints for butt welds
Thickness range
Welding process used for the test piece
Single process joint Multi process joint
according to Table 3
for welding process 1:
according to Table 3
t = s
with t = s + s
1 2
for welding process 2:
t = s
Key
1 Welding process 1
2 Welding process 2
according to Table 3
according to Table 3
Key
for welding process 1: t = t + t
1 2
t = t
2 Welding process 2 1
Welding process 1 only
3 Welding with backing (mb)
for welding process 2:
for welding of the root
4 Welding without backing (nb)
t = t
area
Key
1 Welding process 1
5.3 Product type
The qualification test shall be carried out on plate or pipe. The following criteria are applicable:
a) welds in pipes, outside pipe diameter D > 25 mm, qualify welds in plates;
b) welds in plates qualify welds in pipe:
 of outside pipe diameter D ≥ 150 mm, for welding positions PA, PB and PC;
 of outside pipe diameter D ≥ 500 mm, for all other welding positions.
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 qualify butt welds in any type of joint except branch connections (see also 5.4 c));
b) in cases where the majority of work is fillet welding, the welder shall also be qualified by an appropriate fillet
welding test; in cases where the majority of work is butt welding, butt welds qualify fillet welds;
c) butt welds in pipes without backing qualify branch connections with an angle ≥ 60° and the same range of
qualification as in Tables 1 to 7. 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 filet weld test then a
specific test piece should be used to qualify the welder, e.g. branch connection, finishing welding of castings,
preheating.
NOTE For finishing welding of castings a test piece according to prEN ISO 15614-4:2003, Figures 1 and 2, may be
applied.
5.5 Material groups
5.5.1 Aluminium and aluminium alloy groups of parent material
In order to reduce the number of qualification tests, aluminium and aluminium alloys with similar welding
characteristics are grouped according to CR ISO 15608.
5.5.2 Range of qualification
The welding of any one parent material in a group confers qualification on the welder for the welding of all other
parent material within the same group as well as other groups according to Table 2.
When welding parent materials outside the grouping system a separate test is required.
A test piece between materials of groups 21 to 23 with materials of groups 24 or 25 qualifies any dissimilar joint
obtained from any combination between materials from groups 21 to 23 with materials from groups 24 or 25. Any
dissimilar joint with the material of group 26 requires a specific qualification test.
Table 2 — Range of qualification for parent material
a
Range of qualification
Material group of
the test piece
21 22 23 24 25 26
21 X X – – – –
22 X X – – – –
b
23 X X – – –
X
24 – – – X X —
25 – – – X X —
26 – – – X X X
a
Material group according to CR ISO 15608.
b
See also 5.6.
Key
X indicates those material groups for which the welder is qualified.

– indicates those material groups for which the welder is not qualified.
5.6 Welding consumables
Qualification with filler metal, e.g. with welding processes 141 and 15, qualifies for welding without filler metal but
not vice versa.
Qualification with AlMg alloy type filler metals qualifies the use of AlSi alloy types but not vice versa.
For welding process 131 an increase of the Helium content of the shielding gas greater than 50 % requires a new
qualification test.
5.7 Dimensions
The welder qualification test of butt welds is based on the material thickness and outside pipe diameters. The
ranges of qualification are specified in Tables 3 and 4.
NOTE It is not intended that material thickness or outside pipe diameters should be measured precisely but rather the
general philosophy behind the values given in Tables 3 and 4 should be applied.
For fillet welds the range of qualification for material thickness is specified in Table 5.
In the case of branch welding the material thickness criteria to which Table 3 applies and the outside pipe diameter
criteria to which Table 4 applies is as follows:
 Set on: The material thickness and outside pipe diameter of the branch;
 Set in or set through: The material thickness of the main pipe or shell and the outside pipe diameter of the
branch.
For test pieces of different outside pipe diameters and material thicknesses, the welder is qualified for:
1) the thinnest and thickest material thickness qualified in accordance with Table 3.
2) the smallest and largest outside pipe diameter qualified in accordance with Table 4;
Table 3 — Range of qualification of material thickness and weld metal thickness (multi process) of test
piece for butt welds
Dimension in millimetres
Material thickness of test piece Range of qualification
t
0,5 t to 2 t
t ≤ 6
t > 6
≥ 6
Table 4 — Range of qualification for outside pipe diameter
Dimension in millimetres
a
Range of qualification
Outside pipe diameter of test piece
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.
a
Table 5 — Range of qualification of material thickness of test piece for fillet welds
Dimension in millimetres
Material thickness of test piece Range of qualification
t
t < 3 t to 3
t ≥ 3
≥ 3
a
See also Table 8.
5.8 Welding positions
The range of qualification for each welding position is given in Table 6. The welding positions and symbols refer to
EN ISO 6947.
The test pieces shall be welded in accordance with the nominal angles of the welding positions according to
EN ISO 6947.
Qualification tests welded in position on plates qualify the same position on rotating pipes (see 5.3 b)).
The welding position H-L045 for pipes qualifies 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 qualifies the range of qualification of a pipe welded in welding position H-L045.
Outside pipe diameters D ≥ 150 mm can be welded in two welding positions (PF 2/3 of circumference, PC 1/3 of
circumference) using one test piece in a fixed position.
Table 6 — Range of qualification for welding positions
a
Welding
Range of qualification
position
b b
PA PC PE PF PF PG PG H-L045
PB  PD
of test
(Plate) (Pipe) (Plate) (Pipe)
piece
PA X X – – – – – – – –
b
X X – – – – – – – –
PB
PC X X X – – – – – – –
b
X X X X X X – – – –
PD
PE X X X X X X – – – –
PF (Plate) X X – – – X – – – –
PF (Pipe) X X – X X X X – – –
PG (Plate) – – – – – – – X – –
PG (Pipe) X X – X X – – X X –
H-L045 X X X X X X X – – X
a
Additionally the requirements of 5.3 and 5.4 shall be observed.

b
Welding position PB and PD are only used for fillet welds (see 5.4 b)) and can only qualify fillet welds in other welding positions.
Key
X indicates those welding positions for which the welder is qualified

– indicates those welding positions for which the welder is not qualified
5.9 Weld details
Depending on the weld details, the ranges of qualification are shown in Tables 7 and 8.
Table 7 — 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 w
...