EN ISO 17632:2015

Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of non-alloy and fine grain steels - Classification (ISO 17632:2015)

ISO 17632:2015 specifies requirements for classification of tubular cored electrodes with or without a gas shield for metal arc welding of non-alloy and fine grain steels in the as-welded condition or in the post-weld heat-treated condition with a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa. One tubular cored electrode can be tested and classified with different shielding gases, if any.
This International Standard is a combined specification providing 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.
1)    Paragraphs and tables which carry the suffix letter "A" are applicable only to tubular cored electrodes classified to the system based upon the yield strength and the average impact energy of 47 J of all-weld metal in accordance with this International Standard.
2)    Paragraphs and tables which carry the suffix letter "B" are applicable only to tubular cored electrodes classified to the system based upon the tensile strength and the average impact energy of 27 J of all-weld metal in accordance with this International Standard.
3)    Paragraphs and tables which have neither the suffix letter "A" nor the suffix letter "B" are applicable to all tubular cored electrodes classified in accordance with this International Standard.
It is recognized that the operating characteristics of tubular cored electrodes can be modified by the use of pulsed current, but for the purposes of this International Standard, pulsed current is not permitted for determining the electrode classification.

Schweißzusätze - Fülldrahtelektroden zum Metall-Lichtbogenschweißen mit und ohne Schutzgas von unlegierten Stählen und Feinkornstählen - Einteilung (ISO 17632:2015)

Diese Internationale Norm legt Anforderungen zur Einteilung von Fülldrahtelektroden zum Metall-Licht-bogenschweißen mit und ohne Schutzgas von unlegierten Stählen und Feinkornbaustählen mit einer Mindeststreckgrenze bis 500 MPa oder einer Mindestzugfestigkeit bis 570 MPa im Schweißzustand oder nach einer Wärmenachbehandlung fest. Eine Fülldrahtelektrode kann mit unterschiedlichen Schutzgasen geprüft und eingeteilt werden.
Diese Internationale Norm enthält eine gemeinsame Spezifikation zur Einteilung entweder nach der Streckgrenze und der mittleren Kerbschlagarbeit von 47 J des reinen Schweißgutes oder nach der Zugfestigkeit und der mittleren Kerbschlagarbeit von 27 J des reinen Schweißgutes.
1)   Abschnitte und Tabellen, gekennzeichnet durch ein nachgestelltes „A“, können nur für Fülldraht-elektroden angewendet werden, die nach der Streckgrenze und der mittleren Kerbschlagarbeit von 47 J des reinen Schweißgutes nach dieser Internationalen Norm eingeteilt werden.
2)   Abschnitte und Tabellen, gekennzeichnet durch ein nachgestelltes „B“, können nur für Fülldraht-elektroden angewendet werden, die nach der Zugfestigkeit und der mittleren Kerbschlagarbeit von 27 J des reinen Schweißgutes nach dieser Internationalen Norm eingeteilt werden.
3)   Abschnitte und Tabellen, die kein nachgestelltes „A“ oder „B“ enthalten, sind für alle nach dieser Internationalen Norm eingeteilten Fülldrahtelektroden anwendbar.
Es ist bekannt, dass die Schweißeigenschaften von Fülldrahtelektroden durch Impulsstrom verändert werden können, aber im Sinne dieser Internationalen Norm ist es nicht erlaubt den Impulsstrom zur Bestimmung der Elektrodeneinteilung zu benutzen.

Produits consommables pour le soudage - Fils-électrodes fourrés pour soudage à l'arc avec ou sans gaz de protection des aciers non alliés et des aciers à grains fins - Classification (ISO 17632:2015)

ISO 17632:2015 spécifie les exigences relatives à la classification des fils-électrodes fourrés pour soudage à l'arc avec ou sans gaz de protection pour l'état brut de soudage ou pour l'état traité thermiquement après soudage des aciers non alliés et des aciers à grains fins, ayant une limite d'élasticité minimale pouvant atteindre 500 MPa ou une résistance à la traction minimale pouvant atteindre 570 MPa. Un fil-électrode peut, le cas échéant, être essayé et classifié avec différents gaz de protection.
La présente Norme internationale propose une spécification mixte permettant une classification utilisant un système basé soit sur la limite d'élasticité et l'énergie de rupture moyenne de 47 J pour le métal fondu hors dilution, soit sur la résistance à la traction et l'énergie de rupture moyenne de 27 J pour le métal fondu hors dilution.
1)    Les paragraphes et les tableaux qui portent le suffixe «A» ne sont applicables qu'aux fils-électrodes classifiés d'après le système basé sur la limite d'élasticité et l'énergie de rupture moyenne de 47 J pour le métal fondu hors dilution conformément à la présente Norme internationale.
2)    Les paragraphes et les tableaux qui portent le suffixe «B» ne sont applicables qu'aux fils-électrodes classifiés d'après le système basé sur la résistance à la traction et l'énergie de rupture moyenne de 27 J pour le métal fondu hors dilution conformément à la présente Norme internationale.
3)    Les paragraphes et les tableaux qui ne portent ni le suffixe «A» ni le suffixe «B» sont applicables à tous les fils-électrodes classifiés conformément à la présente Norme internationale.
Il est connu que les caractéristiques d'emploi d'un fil-électrode fourré peuvent être modifiées par l'utilisation de courant pulsé mais, pour les besoins de la présente Norme internationale, l'utilisation de courant pulsé pour la détermination de la classification d'un fil-électrode n'est pas autorisée.

Dodajni materiali za varjenje - Polnjene žice za obločno varjenje nelegiranih in drobnozrnatih jekel po MIG/MAG - Razvrstitev (ISO 17632:2015)

Ta mednarodni standard določa zahteve za razvrstitev cevnih strženskih elektrod s plinsko zaščito ali brez nje, ki se uporabljajo za obločno varjenje nelegiranih in drobnozrnatih jekel v varjenem stanju ali stanju po varjenju s toplotno obdelavo z minimalno mejo prožnosti največ 500 MPa ali minimalno natezno trdnostjo največ 570 MPa. Posamezno cevno stržensko elektrodo je mogoče preskusiti in razvrstiti z različnimi zaščitnimi plini, če so na voljo.
Ta mednarodni standard je kombinirana specifikacija, ki določa razvrstitev po sistemu na osnovi meje prožnosti in povprečne energije udarca 47 J za čiste vare ali po sistemu na osnovi natezne trdnosti in povprečne energije udarca 27 J za čiste vare.
1) Odstavki in preglednice z dodano črko »A« se uporabljajo samo za cevne strženske elektrode, ki so razvrščene po sistemu, ki temelji na meji prožnosti in povprečni energiji udarca 47 J za čiste vare v skladu s tem mednarodnim standardom.
2) Odstavki in preglednice z dodano črko »B« se uporabljajo samo za strženske žice iz cevi, ki so razvrščene po sistemu, ki temelji na natezni trdnosti in povprečni energiji udarca 27 J za čiste vare v skladu s tem mednarodnim standardom.
3) Odstavki in preglednice brez dodane črke »A« ali »B« se uporabljajo
za vse cevne strženske elektrode, ki so razvrščene v skladu s tem mednarodnim standardom.
Ugotovljeno je, da je mogoče delovne značilnosti cevnih strženskih elektrod spremeniti z uporabo
udarnega toka, toda za namene tega mednarodnega standarda udarnega toka ni dovoljeno uporabljati
za določanje razvrstitve elektrod.

General Information

• Status: Published
• Publication Date: 15-Dec-2015
• Withdrawal Date: 29-Jun-2016
• ICS: 25.160.20 - Welding consumables
• Technical Committee: CEN/TC 121 - Welding
• Drafting Committee: CEN/TC 121/WG 3 - Welding consumables
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 16-Dec-2015
• Completion Date: 16-Dec-2015
• Ref Project: SIST EN ISO 17632:2016 - Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of non-alloy and fine grain steels - Classification (ISO 17632:2015)

Relations

• Replaces: EN ISO 17632:2008 - Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of non-alloy and fine grain steels - Classification (ISO 17632:2004)
• Effective Date: 23-Dec-2015

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2016
1DGRPHãþD
SIST EN ISO 17632:2008
'RGDMQLPDWHULDOL]DYDUMHQMH3ROQMHQHåLFH]DREORþQRYDUMHQMHQHOHJLUDQLKLQ
GUREQR]UQDWLKMHNHOSR0,*0$*5D]YUVWLWHY,62
Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded
metal arc welding of non-alloy and fine grain steels - Classification (ISO 17632:2015)
Schweißzusätze - Fülldrahtelektroden zum Metall-Lichtbogenschweißen mit und ohne
Schutzgas von unlegierten Stählen und Feinkornstählen - Einteilung (ISO 17632:2015)
Produits consommables pour le soudage - Fils-électrodes fourrés pour soudage à l'arc
avec ou sans gaz de protection des aciers non alliés et des aciers à grains fins -
Classification (ISO 17632:2015)
Ta slovenski standard je istoveten z: EN ISO 17632:2015
ICS:
25.160.20 Potrošni material pri varjenju Welding consumables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 17632
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2015
EUROPÄISCHE NORM
ICS 25.160.20 Supersedes EN ISO 17632:2008
English Version
Welding consumables - Tubular cored electrodes for gas
shielded and non-gas shielded metal arc welding of non-
alloy and fine grain steels - Classification (ISO
17632:2015)
Produits consommables pour le soudage - Fils- Schweißzusätze - Fülldrahtelektroden zum Metall-
électrodes fourrés pour soudage à l'arc avec ou sans Lichtbogenschweißen mit und ohne Schutzgas von
gaz de protection des aciers non alliés et des aciers à unlegierten Stählen und Feinkornstählen - Einteilung
grains fins - Classification (ISO 17632:2015) (ISO 17632:2015)
This European Standard was approved by CEN on 15 August 2015.

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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17632:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 17632:2015) has been prepared by Technical Committee ISO/TC 44 "Welding
and allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” 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 June 2016, and conflicting national standards shall be
withdrawn at the latest by June 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 17632:2008.
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,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 17632:2015 has been approved by CEN as EN ISO 17632:2015 without any modification.
INTERNATIONAL ISO
STANDARD 17632
Second edition
2015-11-15
Welding consumables — Tubular
cored electrodes for gas shielded and
non-gas shielded metal arc welding
of non-alloy and fine grain steels —
Classification
Produits consommables pour le soudage — Fils-électrodes fourrés
pour soudage à l’arc avec ou sans gaz de protection des aciers non
alliés et des aciers à grains fins — Classification
Reference number
ISO 17632:2015(E)
©
ISO 2015
ISO 17632:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2015 – All rights reserved

ISO 17632:2015(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 tensile properties of all-weld metal or welded joint . 4
4.2.1 Multi-run technique . 4
4.2.2 Single-run technique . 4
4.3 Symbol for impact properties of all-weld metal or welded joint . 5
4.4 Symbol for chemical composition of all-weld metal. 6
4.5 Symbol for type of electrode core or for the usability characteristics of the electrode . 9
4.6 Symbol for shielding gas . 9
4.7 Symbol for welding position .12
4.8 Symbol for hydrogen content of deposited metal .12
4.9 Symbol for condition of postweld heat treatment of all-weld metal .13
5 Mechanical tests .13
5.1 Multi-run technique .13
5.1.1 Preheating and interpass temperatures .13
5.1.2 Procedure requirements for welding multi-run test assemblies .14
5.1.3 Post-weld heat treatment (PWHT) condition .15
5.2 Single-run technique .15
6 Chemical analysis .15
7 Rounding procedure .15
8 Fillet weld test .15
9 Retests .16
10 Technical delivery conditions .17
11 Examples of designation .17
Annex A (informative) Classification systems .21
Annex B (informative) Description of types of electrode core in the classification system
based upon yield strength and average impact energy of 47 J .24
Annex C (informative) Description of types of usability characteristics in the classification
system based upon tensile strength and average impact energy of 27 J .26
Annex D (informative) Notes on hydrogen content .29
ISO 17632:2015(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee
SC 3, Welding consumables.
This second edition cancels and replaces the first edition (ISO 17632:2004), which has been
technically revised.
Requests for official interpretations of any aspect of this International Standard should be directed to
the Secretariat of ISO/TC 44/SC 3, through your national standards body, a complete listing of which
can be found at www.iso.org.
iv © ISO 2015 – All rights reserved

ISO 17632:2015(E)
Introduction
This International Standard provides a classification system for tubular cored electrodes in terms of
tensile properties, impact properties, chemical composition of the all-weld metal, type of electrode
core, shielding gas, and welding position. The ratio of yield to tensile strength of weld metal is generally
higher than that of the parent metal. 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 metal. Where
the application requires matching tensile strengths, selection of consumables is made by reference to
column 3 of Table 1A or Table 1B.
Of note is that the mechanical properties of all-weld metal test specimens used to classify the tubular
cored electrodes will vary from those obtained in production joints because of the differences in welding
procedure such as electrode size, width of weave, welding position, and parent metal composition.
The classification in accordance with system A is mainly based on EN 758:1997. The classification in
accordance with system B is mainly based upon standards used around the Pacific Rim.
INTERNATIONAL STANDARD ISO 17632:2015(E)
Welding consumables — Tubular cored electrodes for gas
shielded and non-gas shielded metal arc welding of non-
alloy and fine grain steels — Classification
1 Scope
This International Standard specifies requirements for classification of tubular cored electrodes
with or without a gas shield for metal arc welding of non-alloy and fine grain steels in the as-welded
condition or in the post-weld heat-treated condition with a minimum yield strength of up to 500 MPa or
a minimum tensile strength of up to 570 MPa. One tubular cored electrode can be tested and classified
with different shielding gases, if any.
This International Standard is a combined specification providing 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.
1) Paragraphs and tables which carry the suffix letter “A” are applicable only to tubular cored
electrodes classified to the system based upon the yield strength and the average impact energy of
47 J of all-weld metal in accordance with this International Standard.
2) Paragraphs and tables which carry the suffix letter “B” are applicable only to tubular cored
electrodes classified to the system based upon the tensile strength and the average impact energy
of 27 J of all-weld metal in accordance with this International Standard.
3) Paragraphs and tables which have neither the suffix letter “A” nor the suffix letter “B” are applicable
to all tubular cored electrodes classified in accordance with this International Standard.
It is recognized that the operating characteristics of tubular cored electrodes can be modified by the use
of pulsed current, but for the purposes of this International Standard, pulsed current is not permitted
for determining the electrode classification.
2 Normative references
The following referenced documents, in whole or in part, are normatively referenced in this document
and are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 544, Welding consumables — Technical delivery conditions for filler materials and fluxes — Type of
product, dimensions, tolerances and markings
ISO 3690, Welding and allied processes — Determination of hydrogen content in arc weld metal
ISO 6847, Welding consumables — Deposition of a weld metal pad for chemical analysis
ISO 6947:2011, Welding and allied processes — Welding positions
ISO 13916, Welding — Guidance on the measurement of preheating temperature, interpass temperature
and preheat maintenance temperature
ISO 14175, Welding consumables — Gases and gas mixtures for fusion welding and allied processes
ISO 14344, Welding consumables — Procurement of filler materials and fluxes
ISO 15792-1:2000, Welding consumables — Test methods — Part 1: Test methods for all-weld metal test
specimens in steel, nickel and nickel alloys. Amended by ISO 15792-1:2000/Amd 1:2011
ISO 17632:2015(E)
ISO 15792-2:2000, Welding consumables — Test methods — Part 2: Preparation of single-run and two-run
technique test specimens in steel
ISO 15792-3, Welding consumables — Test methods — Part 3: Classification testing of positional capacity
and root penetration of welding consumables in a fillet weld
ISO 80000-1:2009, Quantities and units — Part 1: General. Corrected by ISO 80000-1:2009/Cor 1:2011
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 electrode. The two designation approaches
include additional designators for some other classification requirements, but not all as will be clear
from the following. In most cases, a given commercial product can be classified in both systems. Then,
either or both classification designations can be used for the product (see Annex A).
The classification includes all-weld metal properties obtained with a tubular cored electrode and
appropriate shielding gas combination as given below. With the exception of the symbol for welding
position which is based on ISO 15792-3, the classification of gas shielded tubular cored electrodes
is based on the 1,2 mm electrode size or if this size is not manufactured, the next larger diameter
manufactured. The classification of self-shielded tubular cored electrodes is based on the 2,4 mm
diameter or the largest diameter manufactured if less than 2,4 mm.
3.1A  Classification by yield strength and  3.1B  Classification by tensile strength and
47 J impact energy 27 J impact energy
The classification is divided into eight parts. The classification is divided into nine parts.
1)  The first part (T) indicates a tubular cored  1)  The first part (T) indicates a tubular cored
electrode. electrode.
2)  The second part gives a symbol indicating  2)  The second part gives a symbol indicating
the yield strength and elongation of all-weld the tensile strength and elongation of all-weld
metal for multi-run technique or the strength metal for multi-run technique or the strength
of the parent material used in classification for of the parent material used in classification for
the single-run technique (see Table 1A or the single-run technique (see Table 1B or
Table 2A). Table 2B).
3)  The third part gives a symbol indicating the 3)  The third part gives a symbol indicating
impact properties of all-weld metal or welded the impact properties of all-weld metal (see
joint (see Table 3). Table 3). The symbol “U” added as an optional
supplemental designator at or near the end of
the complete tubular cored electrode
designation 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  4)  The fourth part gives a symbol indicating
the chemical composition of all-weld metal the usability characteristics of the electrode
(see Table 4A). (see Table 5B).
5)  The fifth part gives a symbol indicating the  5)  The fifth part gives a symbol indicating the
type of electrode core (see Table 5A). welding position (see Table 6B).
6)  The sixth part gives a symbol indicating the  6)  The sixth part gives a symbol indicating the
shielding gas (see 4.6). shielding gas (see 4.6). The letter “S” added to
this designator indicates that the electrode is
classified for single-pass welding.
2 © ISO 2015 – All rights reserved

ISO 17632:2015(E)
7)  The seventh part gives a symbol indicating  7)  The seventh part gives a symbol indicating
the welding position (see Table 6A); whether the classification tests were conducted
in the as-welded (A) or post-weld heat-treated
condition (P). If the electrode has been
classified in both conditions, the symbol AP
shall be added to the classification. This
designator is omitted in the classification for
single-pass welding electrodes as these are
tested only in the as-welded condition;
8)  The eighth part gives a symbol indicating  8)  The eighth part gives a symbol indicating
the hydrogen content of deposited metal (see the chemical composition of all-weld metal
Table 7). (see Table 4B). The symbol is omitted for weld
deposits conforming to the “No symbol” in
Table 4B.
9)  The ninth part gives a symbol indicating the
hydrogen content of deposited metal (see
Table 7).
Electrodes can be classified under any number
of classifications for either or both the
as-welded and post-weld heat-treated condition.
In both systems, the electrode classification shall include all compulsory sections and can include
optional sections as outlined below.
3.2A  Compulsory and optional sections in  3.2B  Compulsory and optional sections in
the classification by yield strength and 47 J the classification by tensile strength and
impact energy 27 J impact energy
a)  Compulsory section a)  Compulsory section
This section includes the symbols for type of This section includes the symbols for type of
product, strength and elongation, impact product, strength and elongation in the
properties, chemical composition, type of as-welded condition or post-weld heat-treated
electrode core, and shielding gas, i.e. the condition, welding positions for which the
symbols defined in 4.1, 4.2.1A, 4.2.2, 4.3A, 4.4, electrode is suitable, usability characteristics,
4.5A, and 4.6. shielding gas, impact properties, and chemical
composition, i.e. the symbols defined in 4.1,
4.2.1B, 4.2.2, 4.3B, 4.4, 4.5B, 4.6, 4.7, and 4.9B.
b)  Optional section b)  Optional section
This section includes the symbols for the This section includes the symbol “U” to indicate
welding positions for which the electrode is that the weld metal has an average of 47 J
suitable and the symbol for hydrogen content, impact energy at the classification test
i.e. the symbols defined in 4.7 and 4.8. temperature and the symbol for hydrogen
content, i.e. the symbol “U” defined in 4.3B and
the symbols defined in 4.8.
The full designation shall comprise the compulsory symbols and can include optional symbols
chosen by the manufacturer. The full designation (see Clause 10) shall be used on packages and in the
manufacturer’s literature and data sheets.
4 Symbols and requirements
4.1 Symbol for the product/process
The symbol for the tubular cored electrode used in the metal arc welding process is the letter T.
ISO 17632:2015(E)
4.2 Symbol for tensile properties of all-weld metal or welded joint
4.2.1 Multi-run technique
4.2.1A  Classification by yield strength and 4.2.1B  Classification by tensile strength
47 J impact energy and 27 J impact energy
For products suitable for single- and multi-run For electrodes suitable for single- and
welding, the symbol in Table 1A indicates yield multi-run welding, the symbol in Table 1B
strength, tensile strength, and elongation of the indicates yield strength, tensile strength, and
all-weld metal in the as-welded condition elongation of the all-weld metal in the
determined in accordance with 5.1A. as-welded condition or in the post-weld
heat-treated condition determined in
accordance with 5.1B.
Classification of products suitable for both single- and multi-run welding does not require the single-
run test of 5.2.
Table 1A — Symbol for tensile properties Table 1B — Symbol for tensile properties
by multi-run technique (classification by by multi-run technique (classification by
yield strength and 47 J impact energy) tensile strength and 27 J impact energy)
Minimum Minimum Tensile Minimum
Tensile Minimum
b
yield yield strength elongation
b
strength elongation
Symbol Symbol
a a
strength strength
MPa MPa % MPa MPa %
35 355 440 to 570 22 43 330 430 to 600 20
38 380 470 to 600 20 49 390 490 to 670 18
42 420 500 to 640 20 55 460 550 to 740 17
46 460 530 to 680 20
57 490 570 to 770 17
50 500 560 to 720 18
a a
For yield strength, the lower yield, R , is used  For yield strength, the lower yield, R , is used
eL eL
when yielding occurs. Otherwise, the 0,2 % proof when yielding occurs. Otherwise, the 0,2 % proof
strength, R , is used. strength, R , is used.
p0,2 p0,2
b b
Gauge length is equal to five times the test speci-  Gauge length is equal to five times the test speci-
men diameter. men diameter.
4.2.2 Single-run technique
For tubular cored electrodes suitable for single-run welding only, the symbol in Table 2A or Table 2B
indicates strength of the welded joint in the as-welded condition in relation to the parent material used
in single-run tests satisfactorily completed in accordance with 5.2.
4 © ISO 2015 – All rights reserved

ISO 17632:2015(E)
Table 2A — Symbol for tensile properties Table 2B — Symbol for tensile properties
by single-run technique (classification by by single-run technique (classification by
yield strength and 47 J impact energy) tensile strength and 27 J impact energy)
Minimum parent Minimum tensile
Minimum tensile strength of the
material yield strength of the
parent metal and of the welded joint
Symbol Symbol
strength welded joint
MPa MPa MPa
3T 355 470 43 430
4T 420 520 49 490
55 550
5T 500 600
57 570
4.3 Symbol for impact properties of all-weld metal or welded joint
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 3 indicates the The symbol in Table 3 indicates the
temperature at which an impact energy of 47 J temperature at which an impact energy of 27 J
is achieved under the conditions given in 5.1A is achieved in the as-welded condition or in the
or 5.2. Three test specimens shall be tested. post-weld heat-treated condition under the
Only one individual value can be lower than conditions given in 5.1B or 5.2. Five test
47 J, but not lower than 32 J. 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 can be lower, but shall be no 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
47 J at the test temperature. The impact value
shall be determined by the average of the three
test specimens. The average of three values
shall be 47 J or greater. Only one individual
value can be lower than 47 J, but not lower than
32 J.
When an all-weld metal has been classified for a certain temperature, it automatically covers any higher
temperature listed in Table 3.
NOTE Impact testing is not required to classify electrodes for the single-run technique.
ISO 17632:2015(E)
Table 3 — Symbol for impact properties of all-weld metal or welded joint
Temperature for minimum average
a, b c
impact energy of 47 J or 27 J
Symbol
°C
a
Z No requirements
b c
A or Y +20
0 0
2 −20
3 −30
4 −40
5 −50
6 −60
7 −70
8 −80
9 −90
10 −100
a
Only the symbol Z is used for electrodes for the single-run technique.
b
Classification by yield strength and 47 J impact energy.
c
Classification by tensile strength and 27 J impact energy.
4.4 Symbol for chemical composition of all-weld metal
The symbol in Table 4A or Table 4B indicates the chemical composition of all-weld metal determined in
accordance with Clause 6.
6 © ISO 2015 – All rights reserved

ISO 17632:2015(E)
Table 4A — Symbol for chemical composition of all-weld metal (classification by yield strength and 47 J impact energy)
a, b
Chemical composition (percentage mass fraction)
Composition
designation c
C Mn Si P S Cr Ni Mo V Nb Al Cu
No symbol — 2,0 — — — 0,2 0,5 0,2 0,08 0,05 2,0 0,3
Mo — 1,4 — — — 0,2 0,5 0,3 to 0,6 0,08 0,05 2,0 0,3
MnMo — 1,4 to 2,0 — — — 0,2 0,5 0,3 to 0,6 0,08 0,05 2,0 0,3
1Ni — 1,4 0,80 — — 0,2 0,6 to 1,2 0,2 0,08 0,05 2,0 0,3
1,5Ni — 1,6 — — — 0,2 1,2 to 1,8 0,2 0,08 0,05 2,0 0,3
2Ni — 1,4 — — — 0,2 1,8 to 2,6 0,2 0,08 0,05 2,0 0,3
3Ni — 1,4 — — — 0,2 2,6 to 3,8 0,2 0,08 0,05 2,0 0,3
Mn1Ni — 1,4 to 2,0 — — — 0,2 0,6 to 1,2 0,2 0,08 0,05 2,0 0,3
1NiMo — 1,4 — — — 0,2 0,6 to 1,2 0,3 to 0,6 0,08 0,05 2,0 0,3
d
Z Any other agreed composition
a
Single values shown in the table are maximum values.
b
Analysis for boron is required if intentionally added.
c
Self-shielded electrodes only.
d
Consumables for which the chemical composition is not listed in this table shall be symbolized similarly and prefixed by the letter Z. The chemical composition ranges are not
specified and therefore it is possible that two electrodes with the same Z classification are not interchangeable.

ISO 17632:2015(E)
8 © ISO 2015 – All rights reserved
Table 4B — Symbol for chemical composition of all-weld metal (classification by tensile strength and 27 J impact energy)
a, b
Chemical composition (percentage mass fraction)
Composition
designation
c
C Mn Si P S Cr Ni Mo Cu V Al
d e e f e
No symbol 0,18 2,00 0,90 0,030 0,030 0,20 0,50 0,30 — 0,08 2,0
e e f e
K 0,20 1,60 1,00 0,030 0,030 0,20 0,50 0,30 — 0,08 —
2M3 0,12 1,50 0,80 0,030 0,030 — — 0,40 to 0,65 — — 1,8
3M2 0,15 1,25 to 2,00 0,80 0,030 0,030 — — 0,25 to 0,55 — — 1,8
N1 0,12 1,75 0,80 0,030 0,030 — 0,30 to 1,00 0,35 — — 1,8
N2 0,12 1,75 0,80 0,030 0,030 — 0,80 to 1,20 0,35 — — 1,8
N3 0,12 1,75 0,80 0,030 0,030 — 1,00 to 2,00 0,35 — — 1,8
N5 0,12 1,75 0,80 0,030 0,030 — 1,75 to 2,75 — — — 1,8
N7 0,12 1,75 0,80 0,030 0,030 — 2,75 to 3,75 — — — 1,8
CC 0,12 0,60 to 1,40 0,20 to 0,80 0,030 0,030 0,30 to 0,60 — — 0,20 to 0,50 — 1,8
NCC 0,12 0,60 to 1,40 0,20 to 0,80 0,030 0,030 0,45 to 0,75 0,10 to 0,45 — 0,30 to 0,75 — 1,8
NCC1 0,12 0,50 to 1,30 0,20 to 0,80 0,030 0,030 0,45 to 0,75 0,30 to 0,80 — 0,30 to 0,75 — 1,8
N1M2 0,15 2,00 0,80 0,030 0,030 0,20 0,40 to 1,00 0,20 to 0,65 — 0,05 1,8
N2M2 0,15 2,00 0,80 0,030 0,030 0,20 0,80 to 1,20 0,20 to 0,65 — 0,05 1,8
N3M2 0,15 2,00 0,80 0,030 0,030 0,20 1,00 to 2,00 0,20 to 0,65 — 0,05 1,8
f
G Any other agreed composition
a
Single values shown in the table are maximum values.
b
Analysis for boron is required if intentionally added.
c
Self-shielded electrodes only.
d
0,30 % for self-shielded electrodes.
e
The analysis of these elements shall be reported only if added intentionally.
f
Consumables for which the chemical composition is not listed in this table shall be symbolized similarly and prefixed by the letter G. The chemical composition ranges are not
specified and therefore it is possible that two electrodes with the same G classification are not interchangeable.

ISO 17632:2015(E)
4.5 Symbol for type of electrode core or for the usability characteristics of the electrode
4.5A  Classification by yield strength and  4.5B  Classification by tensile strength and
47 J impact energy 27 J impact energy
The symbol in Table 5A indicates different  The symbol in Table 5B indicates the usability
types of tubular cored electrodes relative to characteristics of the electrode.
their core composition and slag characteristics.
Manufacturers shall provide information on
recommended polarity.
Table 5A — Symbol for type of electrode

core (classification by yield strength and
47 J impact energy)
Types of Shielding
Symbol Characteristics
weld gas
Single and
Rutile, slow-
R multiple Required
freezing slag
pass
Single and
Rutile, fast-
P multiple Required
freezing slag
pass
Single and
B Basic multiple Required
pass
Single and
M Metal powder multiple Required
pass
Rutile or Single Not
V
basic/luoride pass required
Basic/luoride, Single and
Not
W slow-freezing multiple
required
slag pass
Basic/luoride, Single and
Not
Y fast-freezing multiple
required
slag pass
Z Other types
NOTE A description of the characteristics of each of the
types of core is given in Annex B.
4.6 Symbol for shielding gas
The symbols for shielding gases shall be in accordance with ISO 14175 except that the symbol NO shall
be used for non-gas shielded tubular cored electrodes.
ISO 17632:2015(E)
10 © ISO 2015 – All rights reserved
Table 5B — Usability characteristics (classification by tensile strength and 27 J impact energy)
a
Usability Shielding Operating Transfer of Type of Welding
Characteristics Type of weld
designator gas polarity droplet core position
Low spatter loss, flat to slightly convex bead, and high Single and
T1 Required d.c.(+) Spray type Rutile 0 or 1
deposition rates multiple pass
Similar to “T1” type, higher manganese and/or silicon for
T2 Required d.c.(+) Spray type Rutile 0 Single pass
improved performance
Not Not
T3 d.c.(+) Globular type 0 Very high welding speeds Single pass
required specified
Not Very high deposition rates, excellent resistance to hot Single and
T4 d.c.(+) Globular type Basic 0
required cracking and low penetration multiple pass
Slightly convex bead, a thin slag without completely
Lime- Single and
T5 Required d.c.(+) Globular type 0 or 1 covering the weld bead, good impact properties, and hot and
fluoride multiple pass
cold crack resistance compared with “T1”
Not Not Good impact properties, good penetration into the root of Single and
T6 d.c.(+) Spray type 0
required specified the weld and excellent slag removal even in a deep groove multiple pass
Not Small droplet Not Single and
T7 d.c.(−) 0 or 1 High deposition rates and excellent resistance to hot cracking
required to spray type specified multiple pass
A small
Not Not Single and
T8 d.c.(−) droplet or 0 or 1 Very good low temperature impact properties
required specified multiple pass
spray type
Not Not
T10 d.c.(−) Small droplet 0 High travel speeds on any thickness Single pass
required specified
Some electrodes are designed for thin plate only. The
Not Not Single and
T11 d.c.(−) Spray type 0 or 1 manufacturer should be consulted regarding any plate
required specified multiple pass
thickness limitations.
Similar to “T1” type, improved impact properties, and lower Single and
T12 Required d.c.(+) Spray type Rutile 0 or 1
manganese requirements multiple pass
Not Short arc Not
T13 d.c.(−) 0 or 1 Welding for open gap root passes Single pass
required transfer specified
Not Not
T14 d.c.(−) Spray type 0 or 1 High speed welding on coated sheet steels Single pass
required specified
Very fine
Core consisting of metal alloys and iron powder and Single and
T15 Required d.c.(+) droplet spray Metal 0 or 1
minimal slag cover multiple pass
type
NOTE  A description of the usability characteristics of the electrodes is given in Annex C.
a
See Table 6B.
b
For electrodes that are not covered by any currently defined usability designator.

ISO 17632:2015(E)
Table 5B (continued)
a
Usability Shielding Operating Transfer of Type of Welding
Characteristics Type of weld
designator gas polarity droplet core position
b
TG As agreed between purchaser and supplier
NOTE  A description of the usability characteristics of the electrodes is given in Annex C.
a
See Table 6B.
b
For electrodes that are not covered by any currently defined usability designator.

ISO 17632:2015(E)
4.7 Symbol for welding position
The symbols in Table 6A or Table 6B indicate the positions for which the electrode is suitable for
classification to ISO 17632-A or ISO 17632-B in accordance with ISO 15792-3 (see Clause 7 for testing
requirements).
Table 6A — Symbol for welding position Table 6B — Symbol for welding position
(classification by yield strength and 47 J (classification by tensile strength and 27 J
impact energy) impact energy)
a a
Symbol Welding positions Symbol Welding positions
1 PA, PB, PC, PD, PE, PF, PG 0 PA, PB
PA, PB, PC, PD, PE
2 PA, PB, PC, PD, PE, PF 1
(PF or PG) or (PF and PG)
a
3 PA, PB    PA = Flat position
4 PA     PB = Horizontal vertical position
5 PA, PB, PG
PC = Horizontal position
a
PA = Flat position
PD = Horizontal overhead position
PB = Horizontal vertical position
PE = Overhead position
PC = Horizontal position
PF = Vertical up position
PD = Horizontal overhead position
PG = Vertical down position
PE = Overhead position
In accordance with ISO 6947:2011.
PF = Vertical up position
PG = Vertical down position
In accordance with ISO 6947:2011.
4.8 Symbol for hydrogen content of deposited metal
The symbols in Table 7 indicate the hydrogen content determined in accordance with the method
given in ISO 3690.
Table 7 — Symbol for hydrogen content of deposited metal
Hydrogen content
Symbol ml/100 g deposited metal
max.
H5 5
H10 10
H15 15
When the symbol for hydrogen content in accordance with Table 7 is included in the classification, the
manufacturer shall state in their literature what restrictions need to be placed on the conditions of
storage and on current, arc voltage, electrode extension, polarity, and shielding gas to remain within
the required limit.
12 © ISO 2015 – All rights reserved

ISO 17632:2015(E)
4.9 Symbol for condition of postweld heat treatment of all-weld metal
4.9A  Classification by yield strength and 4.9B  Classification by tensile strength and
47 J impact energy 27 J impact energy
Classification is based upon mechanical If the electrode has been classified in the
properties of the all-weld metal in the as-welded condition, the symbol A shall be
as-welded condition only. No symbol is used to added to the classification. If the electrode has
indicate this. been classified in the post-weld heat-treated
condition, the condition of post-weld heat
treatment shall be as specified in 5.1.3B and
the symbol P shall be added to the
classification. If the electrode has been
classified in both conditions, the symbol AP
shall be added to the classification.
5 Mechanical tests
5.1 Multi-run technique
5.1A  Classification by yield strength and 5.1B  Classification by tensile strength and
47 J impact energy 27 J impact energy
Tensile and impact tests and any required Tensile and impact tests shall be carried out on
retests shall be carried out on weld metal weld metal prepared as described in 5.1.1B,
prepared as described in 5.1.1A and 5.1.2, in 5.1.2, and 5.1.3B in the as-welded condition
the as-welded condition using an all-weld and/or in the post-weld heat-treated condition
metal, test assembly type 1.3 in accordance using an all-weld metal test assembly type 1.3
with ISO 15792-1:2000 using in accordance with
1,2 mm for gas shielded electrodes or, if this ISO 15792-1:2000 using 1,2 mm
size is not manufactured, the next larger for gas shielded electrodes or if this size is not
diameter manufactured, and 2,4 mm for manufactured, the closest diameter
self-shielded electrodes, or the largest size manufactured and 2,4 mm for self-shielded
manufactured if less than 2,4 mm. electrodes or the closest size manufactured.
When the manufacturer specifies hydrogen removal treatment for tensile test specimen, it should be
done in accordance with ISO 15792-1:2000.
5.1.1 Preheating and interpass temperatures
5.1.1A  Classification by yield strength and 5.1.1B  Classification by tensile strength
47 J impact energy and 27 J impact energy
Preheating is not required. Welding can start Preheating and interpass temperatures shall be
from room temperature. The interpass selected for the appropriate weld metal type
temperature shall be measured using from Table 8B. The preheating and interpass
temperature indicator crayons, surface temperature shall be measured using
thermometers, or thermocouples
...