SIST EN ISO 18276:2006
(Main)Welding consumables - Tubular cored electrodes for gas-shielded and non-gas-shielded metal arc welding of high-strength steels - Classification (ISO 18276:2005)
Welding consumables - Tubular cored electrodes for gas-shielded and non-gas-shielded metal arc welding of high-strength steels - Classification (ISO 18276:2005)
This International Standard specifies requirements for classification of tubular cored electrodes with or without a gas shield for metal arc welding of high-strength steels in the as-welded condition or in the post-weld heattreated condition with a minimum yield strength higher than 550 MPa or a minimum tensile strength higher than 590 MPa. One tubular cored electrode can be tested and classified with different shielding gases, if used with more than one. This document is a combined specification providing classification utilizing a system based upon the yield strength and an average impact energy of 47 J of the all-weld metal, or utilizing a system based upon the tensile strength and an average impact energy of 27 J of the all-weld metal. 1) Subclauses and tables which carry the suffix letter "A" are applicable only to tubular cored electrodes classified under the system based upon the yield strength and an average impact energy of 47 J of the all-weld metal given in this International Standard. 2) Subclauses and tables which carry the suffix letter "B" are applicable only to tubular cored electrodes classified under the system based upon the tensile strength and an average impact energy of 27 J of the all-weld metal given in this International Standard. 3) Subclauses and tables which do not have either the suffix letter "A" or the suffix letter "B" are applicable to all tubular cored electrodes classified under 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 used for determining the electrode classification.
Schweißzusätze - Fülldrahtelektroden zum Metall-Schutzgasschweißen mit und ohne Schutzgas von hochfesten Stählen - Einteilung (ISO 18276:2005)
Diese Internationale Norm legt Anforderungen fest für die Einteilung von Fülldrahtelektroden zum Metall-
Lichtbogenschweißen von hochfesten Stählen mit oder ohne Gasschutz mit einer Mindeststreckgrenze über
550 MPa oder einer Mindestzugfestigkeit über 590 MPa im Schweißzustand oder nach einer
Wärmenachbehandlung. Eine Fülldrahtelektrode kann mit verschiedenen Schutzgasen geprüft und eingeteilt
werden, falls sie mit mehr als einem Schutzgas angewendet wird.
Dieses Dokument enthält gemeinsame Anforderungen zur Einteilung des reinen Schweißgutes entweder nach
der Streckgrenze und der durchschnittlichen Kerbschlagarbeit von 47 J oder nach der Zugfestigkeit und der
durchschnittlichen Kerbschlagarbeit von 27 J.
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 in 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 in dieser Internationalen Norm eingeteilt werden.
3) Abschnitte und Tabellen, die weder ein nachgestelltes 'A' noch 'B' enthalten, sind für alle nach dieser
Internationalen Norm eingeteilten Fülldrahtelektroden anwendbar.
Es ist bekannt, dass die Schweißeigenschaften von Fülldrahtelektroden durch die Anwendung von
pulsierendem Strom beeinflusst werden können, jedoch ist in dieser Internationalen Norm pulsierender Strom
nicht für die Einteilung der Fülldrahtelektroden vorgesehen.
Produits consommables pour le soudage - Fils-électrodes fourrés pour le soudage a l'arc avec ou sans gaz de protection des aciers a haute résistance - Classification (ISO 18276:2005)
L'ISO 18276:2005 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 à haute résistance ayant une limite d'élasticité minimale supérieure à 550 MPa ou une résistance à la traction minimale supérieure à 590 MPa. Un fil-électrode peut, le cas échéant, être essayé et classifié avec différents gaz de protection.
L'ISO 18276:2005 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 – Strženske žice iz cevi za obločno varjenje nerjavnih in ognjeodpornih jekel v zaščitnem plinu in brez zaščite – Razvrščanje (ISO 18276:2005)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 18276:2006
01-oktober-2006
'RGDMQLPDWHULDOL]DYDUMHQMH±6WUåHQVNHåLFHL]FHYL]DREORþQRYDUMHQMHQHUMDYQLK
LQRJQMHRGSRUQLKMHNHOY]DãþLWQHPSOLQXLQEUH]]DãþLWH±5D]YUãþDQMH ,62
Welding consumables - Tubular cored electrodes for gas-shielded and non-gas-shielded
metal arc welding of high-strength steels - Classification (ISO 18276:2005)
Schweißzusätze - Fülldrahtelektroden zum Metall-Schutzgasschweißen mit und ohne
Schutzgas von hochfesten Stählen - Einteilung (ISO 18276:2005)
Produits consommables pour le soudage - Fils-électrodes fourrés pour le soudage a l'arc
avec ou sans gaz de protection des aciers a haute résistance - Classification (ISO
18276:2005)
Ta slovenski standard je istoveten z: EN ISO 18276:2006
ICS:
25.160.20 Potrošni material pri varjenju Welding consumables
SIST EN ISO 18276:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 18276:2006
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SIST EN ISO 18276:2006
EUROPEAN STANDARD
EN ISO 18276
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2006
ICS 25.160.20 Supersedes EN 12535:2000
English Version
Welding consumables - Tubular cored electrodes for gas-
shielded and non-gas-shielded metal arc welding of high-
strength steels - Classification (ISO 18276:2005)
Produits consommables pour le soudage - Fils-électrodes Schweißzusätze - Fülldrahtelektroden zum Metall-
fourrés pour le soudage à l'arc avec ou sans gaz de Schutzgasschweißen mit und ohne Schutzgas von
protection des aciers à haute résistance - Classification hochfesten Stählen - Einteilung (ISO 18276:2005)
(ISO 18276:2005)
This European Standard was approved by CEN on 2 June 2006.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18276:2006: E
worldwide for CEN national Members.
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SIST EN ISO 18276:2006
EN ISO 18276:2006 (E)
Foreword
The text of ISO 18276:2005 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 18276:2006 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 December 2006, and conflicting national
standards shall be withdrawn at the latest by December 2006.
This document supersedes EN 12535:2000.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 18276:2005 has been approved by CEN as EN ISO 18276:2006 without any
modifications.
2
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SIST EN ISO 18276:2006
INTERNATIONAL ISO
STANDARD 18276
First edition
2005-02-15
Welding consumables — Tubular cored
electrodes for gas-shielded and non-gas-
shielded metal arc welding of high-
strength steels — Classification
Produits consommables pour le soudage — Fils-électrodes fourrés pour
le soudage à l'arc avec ou sans gaz de protection des aciers à haute
résistance — Classification
Reference number
ISO 18276:2005(E)
©
ISO 2005
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SIST EN ISO 18276:2006
ISO 18276:2005(E)
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ii © ISO 2005 – All rights reserved
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SIST EN ISO 18276:2006
ISO 18276:2005(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 .4
4.3 Symbol for impact properties of all-weld metal. 4
4.4 Symbol for chemical composition of all-weld metal . 5
4.5 Symbol for type of electrode core or the usability characteristics of the electrodes. 8
4.6 Symbol for shielding gas . 9
4.7 Symbol for welding position. 9
4.8 Symbol for hydrogen content of deposited metal. 10
4.9 Symbol for conditions of post-weld heat treatment. 10
4.10 Rounding-off procedure. 10
5 Mechanical tests . 10
5.1 Preheating and interpass temperatures .11
5.2 Pass sequence . 12
5.3 Post-weld heat treatment (PWHT) condition. 12
6 Chemical analysis . 13
7 Fillet weld test . 13
8 Retest . 14
9 Technical delivery conditions. 14
10 Examples of designations. 14
Annex A (informative) Classification systems. 16
Annex B (informative) Description of composition designations for electrodes in the
classification system based upon tensile strength and average impact energy of 27 J . 19
Annex C (informative) Description of types of electrode core in the classification system based
upon yield strength and average impact energy of 47 J. 20
Annex D (informative) Descriptions of types of usability characteristics in the classification
system based upon tensile strength and average impact energy of 27 J . 21
Annex E (informative) Notes on hydrogen content. 23
© ISO 2005 – All rights reserved iii
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SIST EN ISO 18276:2006
ISO 18276:2005(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 18276 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 3, Welding consumables.
iv © ISO 2005 – All rights reserved
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SIST EN ISO 18276:2006
ISO 18276:2005(E)
Introduction
This International Standard proposes a classification system for tubular cored electrodes in terms of the
tensile properties, impact properties, chemical composition of the all-weld metal, type of electrode core,
shielding gas and welding position. The ratio of yield strength to tensile strength of the 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 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 tubular
cored electrodes will differ from those obtained with production joints because of 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 12535:2000, Welding consumables —
Tubular cored electrodes 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.
Requests for official interpretation of any aspect of this International Standard should be directed to the
Secretariat of ISO/TC 44/SC 3 via the user's national standardization body. A complete listing of these bodies
can be found at .
© ISO 2005 – All rights reserved v
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SIST EN ISO 18276:2006
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SIST EN ISO 18276:2006
INTERNATIONAL STANDARD ISO 18276:2005(E)
Welding consumables — Tubular cored electrodes for gas-
shielded and non-gas-shielded metal arc welding of high-
strength 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 high-strength steels in the as-welded condition or in the post-weld heat-
treated condition with a minimum yield strength higher than 550 MPa or a minimum tensile strength higher
than 590 MPa. One tubular cored electrode can be tested and classified with different shielding gases, if used
with more than one.
This document is a combined specification providing classification utilizing a system based upon the yield
strength and an average impact energy of 47 J of the all-weld metal, or utilizing a system based upon the
tensile strength and an average impact energy of 27 J of the all-weld metal.
1) Subclauses and tables which carry the suffix letter “A” are applicable only to tubular cored electrodes
classified under the system based upon the yield strength and an average impact energy of 47 J of
the all-weld metal given in this International Standard.
2) Subclauses and tables which carry the suffix letter “B” are applicable only to tubular cored electrodes
classified under the system based upon the tensile strength and an average impact energy of 27 J of
the all-weld metal given in this International Standard.
3) Subclauses and tables which do not have either the suffix letter “A” or the suffix letter “B” are
applicable to all tubular cored electrodes classified under 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 used 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 markings
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 2005 – All rights reserved 1
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SIST EN ISO 18276:2006
ISO 18276:2005(E)
ISO 13916, Welding — Guidance on the measurement of preheating temperature, interpass temperature and
preheat maintenance temperature
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 15792-3, 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
subclauses. In most cases, a given commercial product can be classified under both systems. Then either or
both classification designations can be used for the product.
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 an electrode
size of 1,2 mm or, if this size is not manufactured, the next larger diameter manufactured, and the
classification of self-shielded tubular cored electrodes is based on a diameter of 2,4 mm 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 27 J
impact energy impact energy
The classification designation is divided into nine The classification designation is divided into nine
parts: 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 the all-weld metal in strength and elongation of the all-weld metal in
the as-welded or post-weld heat-treated either the as-welded or the post-weld heat-
condition (see Table 1A); 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 the all-weld metal (see impact properties of the all-weld metal (see
Table 2); Table 2). 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 the all-weld metal (see usability characteristics of the electrode (see
Table 3A); Table 4B);
2 © ISO 2005 – All rights reserved
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SIST EN ISO 18276:2006
ISO 18276:2005(E)
5) the fifth part gives a symbol indicating the type 5) the fifth part gives a symbol indicating the
of electrode core (see Table 4A); welding position (see Table 5B);
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);
7) the seventh part gives a symbol indicating the 7) the seventh part gives a symbol indicating
welding position (see Table 5A); whether the classification tests were conducted
in the as-welded condition (A) or the post-weld
heat-treated condition (P);
8) the eighth part gives a symbol indicating the 8) the eighth part gives a symbol indicating the
hydrogen content of the deposited metal (see chemical composition of the all-weld metal (see
Table 6); Table 3B);
9) the ninth part gives a symbol indicating the 9) the ninth part gives a symbol indicating the
post-weld heat treatment if this is applied (see hydrogen content of the deposited metal (see
4.9A). Table 6).
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 the compulsory section and may include the
optional section, 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 the type of This section includes the symbols for the type of
product, the strength and elongation, the impact product, the strength and elongation in the as-
properties, the chemical composition, the type of welded condition or post-weld heat-treated
electrode core, the shielding gas and the post-weld condition, the welding positions for which the
heat treatment, i.e. the symbols defined in 4.1, 4.2, electrode is suitable, the usability characteristics,
4.3A, 4.4, 4.5A, 4.6 and 4.9A. the shielding gas, the impact properties and the
chemical composition, i.e. the symbols defined in
4.1, 4.2, 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 will have an average of 47 J impact
symbol for hydrogen content, i.e. the symbols energy at the classification test temperature and the
defined in 4.7 and 4.8. symbol 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 2005 – All rights reserved 3
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SIST EN ISO 18276:2006
ISO 18276:2005(E)
4 Symbols and requirements
4.1 Symbol for the product/process
The symbol for the tubular cored electrodes used in the metal arc welding process is the letter T.
4.2 Symbol for tensile properties of all-weld metal
The symbol in Table 1A or 1B indicates the yield strength, tensile strength and elongation of the all-weld metal,
determined in accordance with Clause 5.
Table 1A — Symbol for tensile properties of Table 1B — Symbol for tensile properties of
all-weld metal (classification by yield strength all-weld metal (classification by tensile strength
and 47 J impact energy) and 27 J impact energy)
Minimum Tensile Minimum Minimum Tensile Minimum
b b
yield strength elongation yield strength elongation
a a
Symbol Symbol
strength strength
MPa MPa % MPa MPa %
59 490 590 to 790 16
55 550 640 to 820 18
62 530 620 to 820 15
62 620 700 to 890 18
69 600 690 to 890 14
69 690 770 to 940 17
76 680 760 to 960 13
79 790 880 to 1 080 16
78 680 780 to 980 13
89 890 940 to 1 180 15
83 745 830 to 1 030 12
a a
For yield strength, the lower yield (R ) is used when For yield strength, the lower yield (R ) is used when
eL eL
yielding occurs, otherwise the 0,2 % proof strength(R ) is yielding occurs, otherwise the 0,2 % proof strength (R ) is
p0,2 p0,2
used. used.
b b
Gauge length is equal to five times the test specimen Gauge length is equal to five times the test specimen
diameter. diameter.
4.3 Symbol for impact properties of all-weld metal
4.3A Classification by yield strength and 47 J 4.3B Classification by tensile strength and 27 J
impact energy impact energy
The symbols in Table 2 indicate the temperature at The symbols in Table 2 indicate 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 5. 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 Clause 5.
value may be lower than 47 J but not 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 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 symbol “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 the three values shall
be 47 J or greater.
4 © ISO 2005 – All rights reserved
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SIST EN ISO 18276:2006
ISO 18276:2005(E)
When an all-weld metal has been classified for a certain temperature, it automatically covers any higher
temperature in Table 2.
Table 2 — Symbol for impact properties of all-weld metal
Temperature for minimum average
a b
impact energy of 47 J or 27 J
Symbol
°C
No requirements
Z
a b
+ 20
A or Y
0
0
− 20
2
3 − 30
4 − 40
5
− 50
6
− 60
7
− 70
8
− 80
a
Classification by yield strength and 47 J impact energy (see 4.3A).
b
Classification by tensile strength and 27 J impact energy (see 4.3B).
4.4 Symbol for chemical composition of all-weld metal
The symbols in Table 3A or Table 3B indicate the chemical composition of the all-weld metal, determined in
accordance with Clause 6.
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SIST EN ISO 18276:2006
ISO 18276:2005(E)
6 © ISO 2005 – All rights reserved
Table 3A — Symbol for chemical composition of all-weld metal (classification by yield strength and 47 J impact energy)
a, b
Chemical composition, % (by mass)
Symbol
C Mn Si P S Ni Cr Mo V
Z Any other agreed composition
MnMo 0,03 to 0,10 1,4 to 2,0 0,90 0,020 0,020 0,3 0,2 0,3 to 0,6 0,05
Mn1Ni 0,03 to 0,10 1,4 to 2,0 0,90 0,020 0,020 0,6 to1,2 0,2 0,2 0,05
Mn1,5Ni 0,03 to 0,10 1,1 to 1,8 0,90 0,020 0,020 1,3 to 1,8 0,2 0,2 0,05
Mn2,5Ni 0,03 to 0,10 1,1 to 2,0 0,90 0,020 0,020 2,1 to 3,0 0,2 0,2 0,05
1NiMo 0,03 to 0,10 1,4 0,90 0,020 0,020 0,6 to 1,2 0,2 0,3 to 0,6 0,05
1,5NiMo 0,03 to 0,10 1,4 0,90 0,020 0,020 1,2 to 1,8 0,2 0,3 to 0,7 0,05
2NiMo 0,03 to 0,10 1,4 0,90 0,020 0,020 1,8 to 2,6 0,2 0,3 to 0,7 0,05
Mn1NiMo 0,03 to 0,10 1,4 to 2,0 0,90 0,020 0,020 0,6 to 1,2 0,2 0,3 to 0,7 0,05
Mn2NiMo 0,03 to 0,10 1,4 to 2,0 0,90 0,020 0,020 1,8 to 2,6 0,2 0,3 to 0,7 0,05
Mn2NiCrMo 0,03 to 0,10 1,4 to 2,0 0,90 0,020 0,020 1,8 to 2,6 0,3 to 0,6 0,3 to 0,6 0,05
Mn2Ni1CrMo 0,03 to 0,10 1,4 to 2,0 0,90 0,020 0,020 1,8 to 2,6 0,6 to 1,0 0,3 to 0,6 0,05
a
Single values shown in the table are maximum values.
b
Cu u 0,3, Nb u 0,05
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SIST EN ISO 18276:2006
ISO 18276:2005(E)
© ISO 2005 – All rights reserved 7
Table 3B — Symbol for chemical composition of all-weld metal (classification by tensile strength and 27 J impact energy)
a, b, c
Chemical composition, % (by mass)
Symbol
C Mn Si P S Ni Cr Mo V
3M2 0,15 1,25 to 2,00 0,80 0,030 0,030 0,90 — 0,25 to 0,55 —
4M2 0,15 1,65 to 2,25 0,80 0,030 0,030 0,90 — 0,25 to 0,55 —
3M3 0,15 1,00 to 1,75 0,80 0,030 0,030 0,90 — 0,40 to 0,70 —
N2M1 0,15 2,25 0,80 0,030 0,030 0,40 to 1,50 0,20 0,35 0,05
N2M2 0,15 2,25 0,80 0,030 0,030 0,40 to 1,50 0,20 0,20 to 0,65 0,05
N3M1 0,15 2,25 0,80 0,030 0,030 1,00 to 2,00 0,20 0,35 0,05
N3M2 0,15 2,25 0,80 0,030 0,030 1,25 to 2,25 0,20 0,20 to 0,65 0,05
N4M1 0,12 2,25 0,80 0,030 0,030 1,75 to 2,75 0,20 0,35 0,05
N4M2 0,15 2,25 0,80 0,030 0,030 1,75 to 2,75 0,20 0,20 to 0,65 0,05
N4C1M2 0,15 2,25 0,80 0,030 0,030 1,75 to 2,75 0,20 to 0,60 0,20 to 0,65 0,05
N4C2M2 0,15 2,25 0,80 0,030 0,030 1,75 to 2,75 0,60 to 1,00 0,20 to 0,65 0,05
N6C1M4 0,12 2,25 0,80 0,030 0,030 2,50 to 3,50 1,00 0,40 to 1,00 0,05
N3C1M2 0,10 to 0,25 1,75 0,80 0,030 0,030 0,75 to 2,00 0,20 to 0,70 0,15 to 0,65 0,05
d d d d d d
G 1,75 min. 0,80 min. 0,030 0,030 0,50 min. 0,30 min. 0,20
...
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