SIST EN ISO 16834:2007
(Main)Welding consumables - Wire electrodes, wires, rods and deposits for gas-shielded arc welding of high strength steels - Classification (ISO 16834:2006)
Welding consumables - Wire electrodes, wires, rods and deposits for gas-shielded arc welding of high strength steels - Classification (ISO 16834:2006)
This International Standard specifies requirements for classification of wire electrodes, wires, rods and weld deposits in the as-welded condition and in the post-weld heat-treated (PWHT) condition for gas-shielded metal arc welding and tungsten inert-gas welding of high strength steels with a minimum yield strength greater than 500 MPa, or a minimum tensile strength greater than 570 MPa. One wire electrode can be tested and classified with different shielding gases. This International Standard is a combined specification providing for classification utilizing a system based upon the yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength and the average impact energy of 27 J of all-weld metal. a) Subclauses and Tables which carry the suffix letter "A" are applicable only to wire electrodes, wires, rods and deposits classified according to the system based upon the yield strength and the average impact energy of 47 J of all-weld metal under this International Standard. b) Subclauses and Tables which carry the suffix letter "B" are applicable only to wire electrodes, wires, rods and deposits classified according to the system based upon the tensile strength and the average impact energy of 27 J of all-weld metal under this International Standard. c) Subclauses and Tables which do not have either the suffix letter "A" or the suffix letter "B" are applicable to all wire electrodes, wires, rods and deposits classified under this International Standard.
Schweißzusätze - Drahtelektroden, Drähte, Stäbe und Schweißgut zum Schutzgasschweißen von hochfesten Stählen - Einteilung (ISO 16834:2006)
Produits consommables pour le soudage - Fils-électrodes, fils, baguettes et dépôts pour le soudage a l'arc sous flux gazeux des aciers a haute résistance - Classification (ISO 16834:2006)
L'ISO 16834:2006 spécifie les exigences relatives à la classification des fils-électrodes, des fils, des baguettes et du métal fondu à l'état brut de soudage ou après traitement thermique après soudage (PWHT) pour le soudage à l'arc sous protection gazeuse et le soudage TIG des aciers à haute résistance ayant une limite d'élasticité minimale supérieure à 500 MPa, ou une limite de résistance à la traction de 570 MPa. Un fil-électrode peut être soumis à essais et classé en utilisant différents gaz de protection.
L'ISO 16834:2006 propose une spécification mixte permettant une classification utilisant soit un système basé sur la limite d'élasticité et l'énergie de rupture moyenne de 47 J pour le métal fondu hors dilution, soit un système basé sur la résistance à la traction et l'énergie de rupture moyenne de 27 J pour le métal fondu hors dilution.
Dodajni materiali za varjenje - Žične elektrode, žice, palice in čisti vari za varjenje visokotrdnostnih jekel v zaščiti plinov - Razvrščanje (ISO 16834:2006)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 16834:2007
01-september-2007
1DGRPHãþD
SIST EN 12534:1999
'RGDMQLPDWHULDOL]DYDUMHQMHäLþQHHOHNWURGHåLFHSDOLFHLQþLVWLYDUL]DYDUMHQMH
YLVRNRWUGQRVWQLKMHNHOY]DãþLWLSOLQRY5D]YUãþDQMH ,62
Welding consumables - Wire electrodes, wires, rods and deposits for gas-shielded arc
welding of high strength steels - Classification (ISO 16834:2006)
Schweißzusätze - Drahtelektroden, Drähte, Stäbe und Schweißgut zum
Schutzgasschweißen von hochfesten Stählen - Einteilung (ISO 16834:2006)
Produits consommables pour le soudage - Fils-électrodes, fils, baguettes et dépôts pour
le soudage a l'arc sous flux gazeux des aciers a haute résistance - Classification (ISO
16834:2006)
Ta slovenski standard je istoveten z: EN ISO 16834:2007
ICS:
25.160.20 Potrošni material pri varjenju Welding consumables
SIST EN ISO 16834:2007 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN ISO 16834
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2007
ICS 25.160.20 Supersedes EN 12534:1999
English Version
Welding consumables - Wire electrodes, wires, rods and
deposits for gas-shielded arc welding of high strength steels -
Classification (ISO 16834:2006)
Produits consommables pour le soudage - Fils-électrodes, Schweißzusätze - Drahtelektroden, Drähte, Stäbe und
fils, baguettes et dépôts pour le soudage à l'arc sous flux Schweißgut zum Schutzgasschweißen von hochfesten
gazeux des aciers à haute résistance - Classification (ISO Stählen - Einteilung (ISO 16834:2006)
16834:2006)
This European Standard was approved by CEN on 21 January 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 16834:2007: E
worldwide for CEN national Members.
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EN ISO 16834:2007 (E)
Foreword
The text of ISO 16834:2006 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
16834:2007 by Technical Committee CEN/TC 121 “Welding” 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 August 2007, and conflicting national standards shall be withdrawn at
the latest by August 2007.
This document supersedes EN 12534:1999.
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.
Endorsement notice
The text of ISO 16834:2006 has been approved by CEN as a EN ISO 16834:2007 without any modification.
2
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INTERNATIONAL ISO
STANDARD 16834
First edition
2006-01-01
Welding consumables — Wire electrodes,
wires, rods and deposits for gas-shielded
arc welding of high strength steels —
Classification
Produits consommables pour le soudage — Fils-électrodes, fils,
baguettes et dépôts pour le soudage à l'arc sous flux gazeux des
aciers à haute résistance — Classification
Reference number
ISO 16834:2006(E)
©
ISO 2006
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ISO 16834:2006(E)
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ii © ISO 2006 – All rights reserved
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ISO 16834:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references. 1
3 Classification. 2
4 Symbols and requirements. 3
4.1 Symbol for the product/process . 3
4.2 Symbol for strength and elongation properties of all-weld metal . 3
4.3 Symbol for impact properties of all-weld metal. 4
4.4 Symbol for shielding gas . 5
4.5 Symbol for the chemical composition of wire electrodes, wires and rods . 5
4.6 Symbol for condition of post-weld heat treatment.9
4.7 Rounding-off procedure. 9
5 Mechanical tests. 9
5.1 Preheating and interpass temperatures. 9
5.2 Welding conditions and pass sequence . 10
5.3 Post-weld heat-treated condition. 11
6 Chemical analysis. 11
7 Retest. 11
8 Technical delivery conditions . 11
9 Examples of designation . 12
© ISO 2006 – All rights reserved iii
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ISO 16834:2006(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 16834 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 3, Welding consumables.
iv © ISO 2006 – All rights reserved
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ISO 16834:2006(E)
Introduction
This International Standard recognizes that there are two somewhat different approaches in the global market
to classifying a given wire electrode, wire, rod or deposit, and allows for either or both to be used, to suit a
particular market need. Application of either type of classification designation (or of both where suitable)
identifies a product as classified in accordance with this International Standard. The classification in
accordance with system A is mainly based on EN 12534, Welding consumables — Wire electrodes, wires,
rods and deposits for gas shielded metal arc welding of high strength steels — Classification. The
classification in accordance with system B is mainly based upon standards used around the Pacific Rim.
Future revisions will aim to merge the two systems into a single classification system.
This International Standard provides a classification in order to designate wire electrodes, wires, rods and
deposits in terms of their chemical composition and, where required, in terms of the yield strength, tensile
strength and elongation of the all-weld metal. The ratio of yield to tensile strength of weld metal is generally
higher than that of the parent metal. Users should note that matching weld-metal yield strength to parent-
metal yield strength will not necessarily ensure that the weld-metal tensile strength matches that of the parent
material. Where the application requires matching tensile strength, therefore, selection of the consumable
should be made by reference to column 3 of Table 1A or 1B.
It should be noted that the mechanical properties of all-weld metal test specimens used to classify the
electrodes, wires and rods will vary from those obtained in production joints because of differences in welding
procedure, such as electrode size, width of weave, welding position and material composition.
Requests for official interpretations of technical aspects of this International Standard should be directed to the
Secretariat of ISO/TC 44/SC 3 via the user's national standardization body; a listing of these bodies can be
found at www.iso.org.
© ISO 2006 – All rights reserved v
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INTERNATIONAL STANDARD ISO 16834:2006(E)
Welding consumables — Wire electrodes, wires, rods and
deposits for gas-shielded arc welding of high strength steels —
Classification
1 Scope
This International Standard specifies requirements for classification of wire electrodes, wires, rods and weld
deposits in the as-welded condition and in the post-weld heat-treated (PWHT) condition for gas-shielded metal
arc welding and tungsten inert-gas welding of high strength steels with a minimum yield strength greater than
500 MPa, or a minimum tensile strength greater than 570 MPa. One wire electrode can be tested and
classified with different shielding gases.
This International Standard is a combined specification providing for classification utilizing a system based
upon the yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based
upon the tensile strength and the average impact energy of 27 J of all-weld metal.
a) Subclauses and Tables which carry the suffix letter “A” are applicable only to wire electrodes, wires, rods
and deposits classified according to the system based upon the yield strength and the average impact
energy of 47 J of all-weld metal under this International Standard.
b) Subclauses and Tables which carry the suffix letter “B” are applicable only to wire electrodes, wires, rods
and deposits classified according to the system based upon the tensile strength and the average impact
energy of 27 J of all-weld metal under this International Standard.
c) Subclauses and Tables which do not have either the suffix letter “A” or the suffix letter “B” are applicable
to all wire electrodes, wires, rods and deposits classified under this International Standard.
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 31-0:1992, Quantities and units — Part 0: General principles
ISO 544, Welding consumables — Technical delivery conditions for welding filler materials — Type of product,
dimensions, tolerances and markings
ISO 13916, Welding — Guidance on the measurement of preheating temperature, interpass temperature and
preheat maintenance temperature
ISO 14175, Welding consumables — Shielding gases for arc welding and cutting
ISO 14344, Welding and allied processes — Flux and gas shielded electrical welding processes —
Procurement guidelines for consumables
ISO 15792-1:2000, Welding consumables — Test methods — Part 1: Test methods for all-weld metal test
specimens in steel, nickel and nickel alloys
© ISO 2006 – All rights reserved 1
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ISO 16834:2006(E)
3 Classification
Classification designations are based upon two approaches to indicate the tensile properties and the impact
properties of the all-weld metal obtained with a given wire electrode, wire or rod. The two designation
approaches include additional designators for some other classification requirements, but not all, as will be
clear from the following clauses. In most cases, a given commercial product can be classified according to the
classification requirements in both systems. Then either or both classification designations can be used for the
product.
A wire electrode, wire or rod shall be classified in accordance with its chemical composition in Table 3A or
Table 3B. A weld deposit shall be classified with additional symbols in accordance with the mechanical
properties of its all-weld metal, using a shielding gas from a specific group.
3A Classification by yield strength and 47 J 3B Classification by tensile strength and
impact energy 27 J impact energy
The classification is divided into six parts: The classification is divided into five parts:
1) the first part gives a symbol indicating the 1) the first part gives a symbol indicating the
product/process to be identified; product/process to be identified;
2) the second part gives a symbol indicating the 2) the second part gives a symbol indicating the
strength and elongation of all-weld metal (see strength and elongation of the all-weld metal in
Table 1A); either the as-welded or post-weld heat-treated
condition (see Table 1B);
3 the third part gives a symbol indicating the 3) the third part gives a symbol indicating the
impact properties of all-weld metal (see impact properties of all-weld metal in the same
Table 2); condition as specified for the tensile strength
(see Table 2). The letter "U" after this
designator indicates that the deposit meets an
average optional requirement of 47 J at the
designated Charpy test temperature;
4) the fourth part gives a symbol indicating the 4) the fourth part gives a symbol indicating the
shielding gas used (see 4.4); shielding gas used (see 4.4);
5) the fifth part gives a symbol indicating the 5) the fifth part gives a symbol indicating the
chemical composition of the wire electrode, wire chemical composition of the wire electrode, wire
and rod used (see Table 3A); and rod used (see Table 3B).
6) the sixth part gives a symbol indicating the
post-weld heat treatment in case this is applied
(see 4.6A).
2 © ISO 2006 – All rights reserved
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ISO 16834:2006(E)
4 Symbols and requirements
4.1 Symbol for the product/process
The symbol for the wire electrode, wire or rod used in the arc welding process shall be the letter G (gas-
shielded metal arc welding) and/or W (tungsten inert gas welding).
4.2 Symbol for strength and elongation properties of all-weld metal
4A Classification by yield strength and 47 J 4B Classification by tensile strength and
impact energy 27 J impact energy
The symbol in Table 1A indicates yield strength, The symbol in Table 1B indicates yield strength,
tensile strength and elongation of the all-weld tensile strength and elongation of the all-weld metal
metal in the as-welded condition determined in in the as-welded condition or in the post-weld heat-
accordance with Clause 5. treated condition determined in accordance with
Clause 5.
Table 1A — Symbol for tensile properties Table 1B — Symbol for tensile properties
of all-weld metal (Classification by yield strength of all-weld metal (Classification by tensile
and 47 J impact energy) strength and 27 J impact energy)
Minimum Minimum
b c
Tensile Tensile
Minimum Minimum
a a b
Symbol
yield Symbol yield
strength elongation strength elongation
strength strength
MPa MPa % MPa MPa %
55 550 640 to 820 18 59X 490 590 to 790 16
62 620 700 to 890 18 62X 530 620 to 820 15
69 690 770 to 940 17 69X 600 690 to 890 14
79 790 880 to 1 080 16 76X 680 760 to 960 13
89 890 940 to 1 180 15 78X 680 780 to 980 13
a
For yield strength, the lower yield (R ) is used when 83X 745 830 to 1 030 12
eL
yielding occurs, otherwise the 0,2 % proof strength(R ) is
p0,2
a
X is "A", "P" or "AP" (see 4.6B).
used.
b
b
For yield strength, the lower yield (R ) is used when
Gauge length is equal to five times the test specimen
eL
yielding occurs, otherwise the 0,2 % proof strength (R ) is
diameter. p0,2
used.
c
Gauge length is equal to five times the test specimen
diameter
NOTE Post-weld heat treatment can alter the strength of the weld metal from that obtained in the as-welded condition.
© ISO 2006 – All rights reserved 3
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ISO 16834:2006(E)
4.3 Symbol for impact properties of all-weld metal
4.3A Classification by yield strength and 4.3B Classification by tensile strength and
47 J impact energy 27 J impact energy
The symbol in Table 2 indicates the temperature at The symbol in Table 2 indicates the temperature at
which an impact energy of 47 J is achieved under which an impact energy of 27 J is achieved in the
the conditions given in Clause 5A. Three test as-welded condition or in the post-weld heat-treated
specimens shall be tested. Only one individual value condition under the conditions given in Clause 5B.
may be lower than 47 J but not lower than 32 J. Five test specimens shall be tested. The lowest and
highest values obtained shall be disregarded. Two
of the three remaining values shall be greater than
the specified 27 J level, one of the three may be
lower but shall not be less than 20 J. The average of
the three remaining values shall be at least 27 J.
Three test specimens shall be tested when the
optional supplemental designator "U" is used to
indicate that the weld deposit will meet a minimum
impact energy of 4
...
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