SIST EN ISO 17632:2008
(Main)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)
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)
This standard specifies requirements for classification of tubular cored electrodes in the as-welded condition for metal arc welding with or without gas shield of non alloy and fine grain steels with a minimum yield strength of up to 500 N/mm2. One tubular cored electrode can be tested and classified with different gases. 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 standard, pulsed current is not used for determining the electrode classification.
Schweißzusätze - Fülldrahtelektroden zum Metall-Lichtbogenschweißen mit und ohne Schutzgas von unlegierten Stählen und Feinkornstählen - Einteilung (ISO 17632:2004)
Diese Internationale Norm legt Anforderungen zur Einteilung von Fülldrahtelektroden zum Metall-
Lichtbogenschweißen 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 durchschnittlichen Kerbschlagarbeit von 47 J des reinen Schweißgutes oder nach der
Zugfestigkeit und der durchschnittlichen Kerbschlagarbeit von 27 J des reinen Schweißgutes.
1) Abschnitte und Tabellen, gekennzeichnet durch ein nachgestelltes „A“, können nur für Fülldrahtelektroden
angewendet werden, die nach der Streckgrenze und der durchschnittlichen 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 Fülldrahtelektroden
angewendet werden, die nach der Zugfestigkeit und der durchschnittlichen 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. In dieser Norm wird aber der Impulsstrom nicht zur Bestimmung der Elektrodeneinteilung benutzt.
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 17632:2004)
L'ISO 17632:2004 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.
L'ISO 17632:2004 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.
Dodajni materiali za varjenje - Polnjene žice za obločno varjenje nelegiranih in drobnozrnatih jekel po MIG/MAG - Razvrstitev (ISO 17632:2004)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 17632:2008
01-september-2008
1DGRPHãþD
SIST EN 758:1999
'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 17632:2004)
Schweißzusätze - Fülldrahtelektroden zum Metall-Lichtbogenschweißen mit und ohne
Schutzgas von unlegierten Stählen und Feinkornstählen - Einteilung (ISO 17632:2004)
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 17632:2004)
Ta slovenski standard je istoveten z: EN ISO 17632:2008
ICS:
25.160.20 Potrošni material pri varjenju Welding consumables
SIST EN ISO 17632:2008 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 17632
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2008
ICS 25.160.20 Supersedes EN 758:1997
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 17632:2004)
Produits consommables pour le soudage - Fils-électrodes Schweißzusätze - Fülldrahtelektroden zum Metall-
fourrés pour soudage à l'arc avec ou sans gaz de Lichtbogenschweißen mit und ohne Schutzgas von
protection des aciers non alliés et des aciers à grains fins - unlegierten Stählen und Feinkornstählen - Einteilung (ISO
Classification (ISO 17632:2004) 17632:2004)
This European Standard was approved by CEN on 5 April 2008.
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
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17632:2008: E
worldwide for CEN national Members.
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EN ISO 17632:2008 (E)
Contents Page
Foreword.3
2
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EN ISO 17632:2008 (E)
Foreword
The text of ISO 17632:2004 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
17632:2008 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 November 2008, and conflicting national standards shall be withdrawn
at the latest by November 2008.
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 758:1997.
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 the United Kingdom.
Endorsement notice
The text of ISO 17632:2004 has been approved by CEN as a EN ISO 17632:2008 without any modification.
3
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INTERNATIONAL ISO
STANDARD 17632
First edition
2004-10-01
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 17632:2004(E)
©
ISO 2004
---------------------- Page: 5 ----------------------
ISO 17632:2004(E)
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ii © ISO 2004 – All rights reserved
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ISO 17632:2004(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references . 1
3 Classification. 2
4 Symbols and requirements. 4
4.1 Symbol for the product/process. 4
4.2 Symbol for tensile properties of all-weld metal or welded joint . 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 . 10
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
5.2 Single-run technique . 15
6 Chemical analysis . 15
7 Fillet weld test . 15
8 Retests . 16
9 Technical delivery conditions. 16
10 Examples of designation. 17
Annex A (informative) Classification systems. 19
Annex B (informative) Description of types of electrode core in the classification system based
upon yield strength and average impact energy of 47 J. 22
Annex C (informative) Description of types of usability characteristics in the classification system
based upon tensile strength and average impact energy of 27 J. 24
Annex D (informative) Notes on hydrogen content. 27
© ISO 2004 – All rights reserved iii
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ISO 17632:2004(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 17632 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 3, Welding consumables.
iv © ISO 2004 – All rights reserved
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ISO 17632:2004(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 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 metal. Where the
application requires matching tensile strength, therefore, selection of the consumable should be made by
reference to column 3 of Table 1A or Table 1B.
It should be noted 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 differences in welding
procedure such as electrode size, width of weave, welding position and parent metal composition.
The classification according to system A is mainly based on EN 758:1997, Welding consumables — Tubular
cored electrodes for metal arc welding with and without a gas shield of non alloy and fine grain steels —
Classification. The classification according to system B is mainly based upon standards used around the
Pacific Rim.
Requests for official interpretations of any aspect of this International Standard should be directed to the
Secretariat of ISO/TC 44/SC 3 via your national standards body, a complete listing of which can be found at
www.iso.org.
© ISO 2004 – All rights reserved v
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INTERNATIONAL STANDARD ISO 17632:2004(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 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 marking
ISO 3690, Welding and allied processes — Determination of hydrogen content in ferritic steel arc weld metal
ISO 6847, Welding consumables — Deposition of a weld metal pad for chemical analysis
ISO 6947:1990, Welds — Working positions — Definitions of angles of slope and rotation
ISO 13916, Welding — Guidance on the measurement of preheating temperature, interpass temperature and
preheat maintenance temperature
© ISO 2004 – All rights reserved 1
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ISO 17632:2004(E)
ISO 14175:1997, 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 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
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 47 J 3.1B Classification by tensile strength and
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 the 2) the second part gives a symbol indicating the
strength and elongation of all-weld metal for strength and elongation of all-weld metal for
multi-run technique or the strength of the parent multi-run technique or the strength of the parent
material used in classification for the single-run material used in classification for the single-run
technique (see Table 1A or Table 2A); technique (see Table 1B or Table 2B);
3) the third part gives a symbol indicating the 3) the third part gives a symbol indicating the
impact properties of all-weld metal or welded 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 the 4) the fourth part gives a symbol indicating the
chemical composition of all-weld metal usability characteristics of the electrode
(see Table 4A); (see Table 5B);
5) the fifth part gives a symbol indicating the type 5) the fifth part gives a symbol indicating the
of electrode core (see Table 5A); welding position (see Table 6B);
2 © ISO 2004 – All rights reserved
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ISO 17632:2004(E)
6) the sixth part gives a symbol indicating the 6) the sixth part gives a symbol indicating the
shielding gas (see 4.6 and 4.6A); shielding gas (see 4.6 and 4.6B). The letter “S”
added to this designator indicates that the
electrode is classified for single-pass welding;
7) the seventh part gives a symbol indicating the 7) the seventh part gives a symbol indicating
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 the 8) the eighth part gives a symbol indicating the
hydrogen content of deposited metal (see 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 may 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 may 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 27 J
impact energy 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 properties, product, strength and elongation in the as-welded
chemical composition, type of electrode core and condition or post-weld heat-treated condition,
shielding gas, i.e. the symbols defined in 4.1, welding positions for which the electrode is suitable,
4.2.1A, 4.2.2, 4.3A, 4.4, 4.5A and 4.6. usability characteristics, 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 welding This section includes the symbol “U” to indicate that
positions for which the electrode is suitable and the the weld metal has an average of 47J impact energy
symbol for hydrogen content, i.e. the symbols at the classification test temperature and the symbol
defined in 4.7 and 4.8. for hydrogen content, i.e. the symbol “U” defined in
4.3B and the symbols defined in 4.8.
The full designation (see Clause 10) shall be used on packages and in the manufacturer’s literature and data
sheets.
© ISO 2004 – All rights reserved 3
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ISO 17632:2004(E)
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.
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 47 J 4.2.1B Classification by tensile strength and
impact energy 27 J impact energy
For products suitable for single- and multi-run For electrodes suitable for single- and multi-run
welding, the symbol in Table 1A indicates yield welding, the symbol in Table 1B indicates yield
strength, tensile strength and elongation of the all- strength, tensile strength and elongation of the all-
weld metal in the as-welded condition determined in weld metal in the as-welded condition or in the post-
accordance with 5.1A. 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 by Table 1B — Symbol for tensile properties by
multi-run technique (classification by yield multi-run technique (classification by tensile
strength and 47 J impact energy) strength and 27 J impact energy)
Minimum yield Tensile Minimum Minimum yield Tensile Minimum
a b a b
strength
Symbol strength strength elongation Symbol strength elongation
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 when For yield strength the lower yield, R , is used when yielding
eL eL
yielding occurs, otherwise the 0,2 % proof strength, R , is occurs, otherwise the 0,2 % proof strength , R , is used.
p0,2 p0,2
used.
b
Gauge length is equal to five times the test specimen
b
Gauge length is equal to five times the test specimen diameter.
diameter.
4 © ISO 2004 – All rights reserved
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ISO 17632:2004(E)
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.
Table 2A — Symbol for tensile properties by Table 2B — Symbol for tensile properties by
single-run technique (classification by yield single-run technique (classification by tensile
strength and 47 J impact energy) strength and 27 J impact energy)
Minimum parent Minimum tensile
Minimum tensile strength of the parent
material yield strength of the
Symbol Symbol metal and of the welded joint
strength welded joint
MPa
MPa MPa
43 430
3T 355 470
49 490
4T 420 520
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 47 J 4.3B Classification by tensile strength and
impact energy 27 J impact energy
The symbol in Table 3 indicates the temperature at The symbol in Table 3 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 5.1A or 5.2. Three test as-welded condition or in the post-weld heat-treated
specimens shall be tested. Only one individual condition under the conditions given in 5.1B or 5.2.
value may be lower than 47 J but no lower than Five test specimens shall be tested. The lowest and
32 J. 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 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.
© ISO 2004 – All rights reserved 5
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ISO 17632:2004(E)
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
Table 3 — Symbol for impact properties of all-weld metal or welded joint
Temperature for minimum
a,b c
average impact energy of 47 J or 27 J
Symbol
°C
a
No requirements
Z
b c + 20
A or Y
0
0
− 20
2
− 30
3
− 40
4
− 50
5
− 60
6
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 2004 – All rights reserved
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ISO 17632:2004(E)
© ISO 2004 – All rights reserved 7
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 Cu
Al
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
3N
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