EN ISO 17660-2:2006

SLOVENSKI STANDARD
01-marec-2007
Varjenje - Varjenje betonskega jekla - 2. del: Neobremenjeni zvarni spoji (ISO
17660-2:2006)
Welding - Welding of reinforcing steel - Part 2: Non load-bearing welded joints (ISO
17660-2:2006)
Schweißen - Schweißen von Betonstahl - Tel 2: Nichttragende Schweißverbindungen
(ISO 17660-2:2006)
Soudage - Soudage des aciers d'armatures - Partie 2: Assemblages non transmettants
(ISO 17660-2:2006)
Ta slovenski standard je istoveten z: EN ISO 17660-2:2006
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
EN ISO 17660-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2006
ICS 25.160.10
English Version
Welding - Welding of reinforcing steel - Part 2: Non load-bearing
welded joints (ISO 17660-2:2006)
Soudage - Soudage des aciers d'armatures - Partie 2: Schweißen - Schweißen von Betonstahl - Tel 2:
Assemblages non transmettants (ISO 17660-2:2006) Nichttragende Schweißverbindungen (ISO 17660-2:2006)
This European Standard was approved by CEN on 2 August 2006.
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, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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EUROPÄISCHES KOMITEE FÜR NORMUNG
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© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17660-2:2006: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 17660-2:2006) 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 March 2007, and conflicting national
standards shall be withdrawn at the latest by March 2007.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

INTERNATIONAL ISO
STANDARD 17660-2
First edition
2006-09-01
Welding — Welding of reinforcing steel —
Part 2:
Non load-bearing welded joints
Soudage — Soudage des aciers d'armatures —
Partie 2: Assemblages non transmettants

Reference number
ISO 17660-2:2006(E)
©
ISO 2006
ISO 17660-2:2006(E)
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ii © ISO 2006 – All rights reserved

ISO 17660-2:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Symbols and abbreviated terms . 2
5 Welding processes . 3
6 Non load-bearing welded joints . 3
7 Materials . 5
8 Quality requirements. 5
9 Welding personnel. 5
10 Welding procedure specification (WPS). 6
11 Welding procedures . 6
12 Production weld test. 8
13 Execution and inspection of production welding of reinforcing steel. 8
14 Examination and testing of test specimens.9
15 Production log. 10
Annex A (informative) Technical knowledge of welding coordinator for welding reinforcing steel
bars. 11
Annex B (informative) Test specimens . 12
Annex C (informative) Evaluation of testing of welded joints . 13
Annex D (informative) Example for production log . 14
Annex E (informative) Examples of diameter combinations for welding cross joints using welding
processes 21 and 23. 15
Bibliography . 16

ISO 17660-2:2006(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 17660-2 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 17660 consists of the following parts, under the general title Welding — Welding of reinforcing steel:
⎯ Part 1: Load-bearing welded joints
⎯ Part 2: Non load-bearing welded joints
Requests for official interpretations of any aspect of this part of ISO 17660 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 2006 – All rights reserved

ISO 17660-2:2006(E)
Introduction
Reinforcing steel bars are produced by a number of process routes and usually have a ribbed profile. Taking
these issues into account, it is apparent that both the welder and the welding coordinator require a specific
level of skill and job knowledge and that special procedures for quality assurance need to be adopted.

INTERNATIONAL STANDARD ISO 17660-2:2006(E)

Welding — Welding of reinforcing steel —
Part 2:
Non load-bearing welded joints
1 Scope
This part of ISO 17660 is applicable to the welding of weldable reinforcing steel and stainless reinforcing steel
of non load-bearing welded joints, in workshops or on site. It specifies requirements for materials, design and
execution of welded joints, welding personnel, quality requirements, examination and testing.
Load-bearing welded joints are covered by ISO 17660-1.
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 3834-4, Quality requirements for fusion welding of metallic materials — Part 4: Elementary quality
requirements
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections
1)
ISO 14731:— , Welding coordination — Tasks and responsibilities
ISO 15609-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 1: Arc welding
ISO 15609-5, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 5: Resistance welding
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 15614-12, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 12: Spot, seam and projection welding
ISO 15630-1, Steel for the reinforcement and prestressing of concrete — Test methods — Part 1: Reinforcing
bars, wire rod and wire
ISO 16020, Steel for the reinforcement and prestressing of concrete — Vocabulary
EN 10079, Definition of steel products
EN 10080, Steel for the reinforcement of concrete — Weldable reinforcing steel — General

1) To be published (revision of ISO 14731:1997, EN 719:1994).
ISO 17660-2:2006(E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 10079, EN 10080 and ISO 16020
and the following apply.
3.1
load-bearing welded joint
welded joint used for transmission of specified loads between reinforcing steel bars, or between reinforcing
steel bars and other steel products
3.2
non load-bearing welded joint
welded joint whose strength is not taken into account in the design of the reinforced concrete structure
3.3
manufacturer
enterprise carrying out the welding works within workshops or on site
4 Symbols and abbreviated terms
a throat thickness
A percentage total elongation at maximum force
gt
A nominal cross-sectional area of the bar
n
d nominal diameter of the welded bar
d maximum nominal diameter of the welded bar
max
d minimum nominal diameter of the welded bar
min
F maximum tensile force
max
l length of the weld (cross joint)
L minimum length of the test specimen
min
r radius of bent reinforcing steel bar
R specified characteristic yield strength of the reinforcing steel bar
e
R nominal tensile strength of the reinforcing steel bar
m
t thickness of the web of a section or of a plate to be welded
CEV carbon equivalent value
WPQR welding procedure qualification record
WPS welding procedure specification
2 © ISO 2006 – All rights reserved

ISO 17660-2:2006(E)
5 Welding processes
The following welding processes in accordance with ISO 4063 may be used (see Table 1).
Table 1 — List of welding processes and reference numbers in accordance with ISO 4063
Welding process English term American term
manual metal arc welding
111 shielded metal arc welding
(metal arc welding with covered electrode)
114 self-shielded tubular cored arc welding
135 metal active gas welding (MAG-welding) gas metal arc welding
tubular cored metal arc welding
136 flux cored arc welding
with active gas shield
21 resistance spot welding
23 projection welding
The principles of this part of ISO 17660 may be applied to other welding processes.
6 Non load-bearing welded joints
6.1 General
A summary of recommended diameters for non load-bearing welded joints, depending on the welding process,
is given in Table 2.
Table 2 — Recommended range of bar diameters for non load-bearing welded joints
Welding processes Type of welded joint Range of bar diameter for non
load-bearing welded joints
mm
lap joint 4 to 32
a
cross joint 6 to 50
lap joint 6 to 32
a
6 to 50
cross joint
a
d /d should be W 0,4.
min max
The welds shall not influence significantly the full load-bearing capacity and ductility of the bars, and the
welding procedure may not cause embrittlement of the material.
NOTE The purpose of a non load-bearing welded joint is normally only to keep the reinforcing components in their
correct places during fabrication, transport and concreting. These welds are often referred to as tack welds. The tack
weldability of reinforcing steels can be demonstrated by special tack weldability tests (see CEN/TR 15481).
ISO 17660-2:2006(E)
6.2 Type of joints
An example of a lap joint is given in Figure 1. Examples of a cross joint are given in Figures 2 and 3. The
length of the weld l and throat thickness a depend on the application, and shall be in accordance with the
WPS.
Key
l length of the weld
Figure 1 — Lap joint
Key
a throat thickness
Figure 2 — Cross joint
Figure 3 — Cross joint welded by welding processes 21 and 23
4 © ISO 2006 – All rights reserved

ISO 17660-2:2006(E)
7 Materials
7.1 Parent materials
7.1.1 Reinforcing steels
Weldable reinforcing steel and stainless reinforcing steel, in accordance with the relevant standards or
technical specification, may be used. For refurbishment and extensions of buildings, the weldability of the
existing reinforcing steel shall be verified.
7.1.2 Inspection documents
An inspection certificate is required, unless the manufacturer of the reinforcing steel is certified to the relevant
product stand
...