SIST EN ISO 24598:2019
(Main)Welding consumables - Solid wire electrodes, tubular cored electrodes and electrode-flux combinations for submerged arc welding of creep-resisting steels - Classification (ISO 24598:2019)
Welding consumables - Solid wire electrodes, tubular cored electrodes and electrode-flux combinations for submerged arc welding of creep-resisting steels - Classification (ISO 24598:2019)
This document specifies requirements for classification of solid wire electrodes, tubular cored
electrodes and electrode/flux combinations (all-weld metal deposits) for submerged arc welding of
creep resisting and low-alloy elevated-temperature application steels. One electrode can be tested
and classified with different fluxes. The solid wire electrode is also classified separately based on its
chemical composition.
This document is a combined specification providing a classification system based on either:
— the chemical composition of the solid wire electrode and all-weld metal deposit; or
— the tensile strength of the all-weld metal deposit and the chemical composition of the solid wire
electrode and all-weld metal deposit obtained with the electrode/flux combination.
a) Clauses, subclauses and tables which carry the suffix letter “A” are applicable only to solid wire
electrodes, tubular cored electrodes and all-weld metal deposits classified in accordance with
the system based upon chemical composition.
b) Clauses, subclauses and tables which carry the suffix letter “B” are applicable only to solid
wire electrodes, tubular cored electrodes and all-weld metal deposits classified in accordance
with the system based upon the tensile strength of all-weld metal deposits and the chemical
composition of solid wire electrodes and all-weld metal deposits.
c) Clauses, subclauses and tables which do not have either the suffix letter “A” or the suffix letter
“B” are applicable to all solid wire electrodes, tubular cored electrodes and electrode/flux
combinations classified under this document.
Schweißzusätze - Drahtelektroden, Fülldrahtelektroden und Draht-Pulver-Kombinationen für das Unterpulverschweißen von warmfesten Stählen - Einteilung (ISO 24598:2019)
Dieses Dokument legt Anforderungen für die Einteilung von Massivdrahtelektroden, Fülldrahtelektroden und Draht Pulver Kombinationen (reines Schweißgut) zum Unterpulverschweißen warmfester und niedrig¬legierter Stähle für erhöhte Temperatur fest. Eine Drahtelektrode kann mit verschiedenen Pulvern geprüft und eingestuft werden. Die Massivdrahtelektrode kann auch gesondert nach ihrer chemischen Zusammensetzung eingestuft werden.
Dieses Dokument benutzt ein System zur Einteilung, das entweder
— auf der Einteilung nach der chemischen Zusammensetzung der Massivdrahtelektroden und des reinen Schweißgutes; oder
— auf der Zugfestigkeit des reinen Schweißgutes sowie der chemischen Zusammensetzung der Massivdrahtelektroden und des mit einer Draht Pulver Kombination hergestellten reinen Schweißgutes
beruht.
a) Abschnitte, Unterabschnitte und Tabellen mit dem zusätzlichen Buchstaben „A“ sind nur für Massivdraht¬elektroden, Fülldrahtelektroden und reines Schweißgut anwendbar, die nach dem System eingeteilt sind, das auf der chemischen Zusammensetzung beruht.
b) Abschnitte, Unterabschnitte und Tabellen mit dem zusätzlichen Buchstaben „B“ sind nur für Massiv¬drahtelektroden, Fülldrahtelektroden und reines Schweißgut anwendbar, die nach dem System eingeteilt sind, das auf den Anforderungen an die Zugfestigkeit des reinen Schweißgutes und die chemische Zusammensetzung der Massivdrahtelektroden und des reinen Schweißgutes beruht.
c) Abschnitte, Unterabschnitte und Tabellen ohne zusätzlichen Buchstaben „A“ oder „B“ sind für alle nach diesem Dokument eingeteilten Massivdrahtelektroden, Fülldrahtelektroden und Draht Pulver Kom¬binationen anwendbar.
Produits consommables pour le soudage - Fils-électrodes pleins, fils-électrodes fourrés et couples électrodes-flux pour le soudage à l'arc sous flux des aciers résistant au fluage - Classification (ISO 24598:2019)
Le présent document spécifie les exigences relatives à la classification des fils-électrodes pleins, des fils-électrodes fourrés et des combinaisons fil-flux (dépôts de métal fondu hors dilution) pour le soudage à l'arc sous flux des aciers résistant au fluage et des aciers faiblement alliés pour hautes températures. Une électrode peut être essayée et classifiée avec différents flux. Un fil-électrode plein est également classifié séparément d'après sa composition chimique.
Le présent document propose une spécification mixte donnant un système de classification basé sur:
— la composition chimique des fils-électrodes pleins et des dépôts de métal fondu hors dilution; ou
— la résistance à la traction du métal fondu hors dilution et la composition chimique des fils-électrodes pleins et des dépôts de métal fondu hors dilution obtenus avec les couples fil-flux.
Les articles, les paragraphes et les tableaux qui portent le suffixe «A» ne s'appliquent qu'aux fils-électrodes pleins, fils-électrodes fourrés et dépôts de métal fondu hors dilution classifiés d'après le système basé sur la composition chimique.
Les articles, les paragraphes et les tableaux qui portent le suffixe «B» ne s'appliquent qu'aux fils-électrodes pleins, fils-électrodes fourrés et dépôts de métal fondu classifiés d'après le système basé sur la résistance à la traction des dépôts de métal fondu hors dilution et sur la composition chimique des fils-électrodes pleins et des dépôts de métal fondu hors dilution.
Les articles, les paragraphes et les tableaux qui ne portent ni le suffixe «A» ni le suffixe «B» s'appliquent à tous les fils-électrodes pleins, fils-électrodes fourrés et couples fil-flux classifiés conformément au présent document.
Dodajni materiali za varjenje - Masivne žice, strženske žice in kombinacije žic in praškov za obločno varjenje pod praškom jekel, odpornih proti lezenju - Razvrstitev (ISO 24598:2019)
Ta dokument določa zahteve za razvrstitev masivnih žic, strženskih žic ter kombinacij žic in praškov (čisti vari) za varjenje pod praškom jekel, odpornih proti lezenju, in malolegiranih visokotemperaturnih jekel. Eno elektrodo je mogoče preskušati in razvrstiti z različnimi praški. Masivna žica je razvrščena ločeno na podlagi kemične sestave.
Ta dokument je kombinirana specifikacija za sistem razvrščanja, ki temelji na:
– kemični sestavi masivnih žic in čistih varov; ali
– natezni trdnosti čistih varov ter kemični sestavi masivnih žic in čistih varov, pridobljenih s kombinacijo žic/praškov.
a) Točke, podtočke in preglednice s črko »A« se uporabljajo samo za masivne žice, strženske žice in vse čiste vare, razvrščene v skladu s sistemom na podlagi kemične sestave.
b) Točke, podtočke in preglednice s črko »B« se uporabljajo samo za masivne žice, strženske žice ter vse čiste vare, razvrščene v skladu s sistemom na podlagi natezne trdnosti čistih varov in kemične sestave žičnih elektrod ter čistih varov.
c) Točke, podtočke in preglednice brez dodane črke »A« ali »B« se uporabljajo za vse masivne žice, strženske žice ter kombinacije žic in praškov, ki so razvrščene v skladu s tem dokumentom.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 24598:2019
01-september-2019
Nadomešča:
SIST EN ISO 24598:2012
Dodajni materiali za varjenje - Masivne žice, strženske žice in kombinacije žic in
praškov za obločno varjenje pod praškom jekel, odpornih proti lezenju -
Razvrstitev (ISO 24598:2019)
Welding consumables - Solid wire electrodes, tubular cored electrodes and electrode-
flux combinations for submerged arc welding of creep-resisting steels - Classification
(ISO 24598:2019)
Schweißzusätze - Drahtelektroden, Fülldrahtelektroden und Draht-Pulver-Kombinationen
für das Unterpulverschweißen von warmfesten Stählen - Einteilung (ISO 24598:2019)
Produits consommables pour le soudage - Fils-électrodes pleins, fils-électrodes fourrés
et couples électrodes-flux pour le soudage à l'arc sous flux des aciers résistant au fluage
- Classification (ISO 24598:2019)
Ta slovenski standard je istoveten z: EN ISO 24598:2019
ICS:
25.160.20 Potrošni material pri varjenju Welding consumables
SIST EN ISO 24598:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 24598:2019
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SIST EN ISO 24598:2019
EN ISO 24598
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2019
EUROPÄISCHE NORM
ICS 25.160.20 Supersedes EN ISO 24598:2012
English Version
Welding consumables - Solid wire electrodes, tubular
cored electrodes and electrode-flux combinations for
submerged arc welding of creep-resisting steels -
Classification (ISO 24598:2019)
Produits consommables pour le soudage - Fils- Schweißzusätze - Drahtelektroden,
électrodes pleins, fils-électrodes fourrés et couples Fülldrahtelektroden und Draht-Pulver-Kombinationen
électrodes-flux pour le soudage à l'arc sous flux des für das Unterpulverschweißen von warmfesten Stählen
aciers résistant au fluage - Classification (ISO - Einteilung (ISO 24598:2019)
24598:2019)
This European Standard was approved by CEN on 10 May 2019.
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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 24598:2019 E
worldwide for CEN national Members.
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SIST EN ISO 24598:2019
EN ISO 24598:2019 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 24598:2019
EN ISO 24598:2019 (E)
European foreword
This document (EN ISO 24598:2019) 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 November 2019, and conflicting national standards
shall be withdrawn at the latest by November 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 24598:2012.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 24598:2019 has been approved by CEN as EN ISO 24598:2019 without any modification.
3
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SIST EN ISO 24598:2019
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SIST EN ISO 24598:2019
INTERNATIONAL ISO
STANDARD 24598
Third edition
2019-04
Welding consumables — Solid wire
electrodes, tubular cored electrodes
and electrode-flux combinations for
submerged arc welding of creep-
resisting steels — Classification
Produits consommables pour le soudage — Fils-électrodes pleins, fils-
électrodes fourrés et couples électrodes-flux pour le soudage à l'arc
sous flux des aciers résistant au fluage — Classification
Reference number
ISO 24598:2019(E)
©
ISO 2019
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SIST EN ISO 24598:2019
ISO 24598:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
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Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST EN ISO 24598:2019
ISO 24598:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 2
4.1 General . 2
5 Symbols and requirements . 3
5.1 General . 3
5.2 Symbol for the product/process . 3
5.2.1 General. 3
5.3 Symbols for the tensile properties of the all-weld metal deposit . 3
5.4 Symbols for impact properties of all-weld metal deposits . 4
5.5 Symbol for type of welding flux . 5
5.6 Symbol for the chemical composition of solid wire electrodes and of all-weld metal
deposits . 5
6 Mechanical tests . 8
6.1 General . 8
6.2 Preheating, interpass and post-weld heat treatment temperatures . 8
6.3 Welding conditions and pass sequence .11
6.3.1 General.11
7 Chemical analysis .13
8 Rounding procedure .13
9 Retests .13
10 Technical delivery conditions .14
11 Examples of designation .14
11.1 General .14
Bibliography .18
© ISO 2019 – All rights reserved iii
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SIST EN ISO 24598:2019
ISO 24598:2019(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 of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes
Subcommittee SC 3, Welding consumables.
This third edition cancels and replaces the second edition (ISO 24598:2012), which has been technically
revised. The main changes compared to the previous edition are as follows:
— US classifications have been added to Table 3 and Table 4;
— US classifications have been corrected;
h
— in Table 3, footnote has been revised;
f
— in Table 4, footnote has been revised;
— alloy symbols 2M3, 2M31, 3M3 and 4M32 have been removed from Table 5B;
— Tables 6A and 6B have been revised;
— Z-example has been added to Clause 11.
Any feedback, question or request for official interpretation related to any aspect of this document
should be directed to the Secretariat of ISO/TC 44/SC 3 via your national standards body. A complete
listing of these bodies can be found at www .iso .org/members .html. Official interpretations, where they
exist, are available from this page: https: //committee .iso .org/sites/tc44/home/interpretation .html.
iv © ISO 2019 – All rights reserved
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SIST EN ISO 24598:2019
ISO 24598:2019(E)
Introduction
This document recognizes that there are two somewhat different approaches in the global market to
classifying a given wire electrode, tubular cored electrode or electrode/flux combination, and allows
for either or both to be used to suit a particular market need. Application of either type of classification
designation (or of both where suitable) identifies a product as classified in accordance with this
document. The classification in accordance with system A was mainly based on EN 12070:1999. The
classification in accordance with system B is mainly based upon standards used around the Pacific Rim.
This document provides a classification system for solid wire electrodes in terms of their chemical
composition, solid wire electrodes and tubular cored electrodes in terms of the chemical composition
of the deposit obtained with a particular submerged arc flux and, where required, electrode-flux
combinations in terms of the yield strength, tensile strength and elongation of the all-weld metal
deposit. 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 does not
necessarily ensure that the weld metal tensile strength matches that of the parent material. Where
the application requires matching tensile strength, selection of the consumable should be made by
reference to column 3 of Table 1A or Table 1B, as appropriate.
Although combinations of wire electrodes and fluxes supplied by individual companies can have
the same classification, the individual wire electrodes and fluxes from different companies are not
interchangeable unless verified in accordance with this document.
It should be noted that the mechanical properties of all-weld metal test pieces used to classify the wire
electrodes vary from those obtained in production joints because of differences in welding procedure,
such as electrode size, welding position and material composition.
© ISO 2019 – All rights reserved v
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SIST EN ISO 24598:2019
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SIST EN ISO 24598:2019
INTERNATIONAL STANDARD ISO 24598:2019(E)
Welding consumables — Solid wire electrodes, tubular
cored electrodes and electrode-flux combinations for
submerged arc welding of creep-resisting steels —
Classification
1 Scope
This document specifies requirements for classification of solid wire electrodes, tubular cored
electrodes and electrode/flux combinations (all-weld metal deposits) for submerged arc welding of
creep resisting and low-alloy elevated-temperature application steels. One electrode can be tested
and classified with different fluxes. The solid wire electrode is also classified separately based on its
chemical composition.
This document is a combined specification providing a classification system based on either:
— the chemical composition of the solid wire electrode and all-weld metal deposit; or
— the tensile strength of the all-weld metal deposit and the chemical composition of the solid wire
electrode and all-weld metal deposit obtained with the electrode/flux combination.
a) Clauses, subclauses and tables which carry the suffix letter “A” are applicable only to solid wire
electrodes, tubular cored electrodes and all-weld metal deposits classified in accordance with
the system based upon chemical composition.
b) Clauses, subclauses and tables which carry the suffix letter “B” are applicable only to solid
wire electrodes, tubular cored electrodes and all-weld metal deposits classified in accordance
with the system based upon the tensile strength of all-weld metal deposits and the chemical
composition of solid wire electrodes and all-weld metal deposits.
c) Clauses, subclauses and tables which do not have either the suffix letter “A” or the suffix letter
“B” are applicable to all solid wire electrodes, tubular cored electrodes and electrode/flux
combinations classified under this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 544, Welding consumables — Technical delivery conditions for filler materials and fluxes — Type of
product, dimensions, tolerances and markings
ISO 6847, Welding consumables — Deposition of a weld metal pad for chemical analysis
ISO 13916, Welding — Measurement of preheating temperature, interpass temperature and preheat
maintenance temperature
ISO 14174, Welding consumables — Fluxes for submerged arc welding and electroslag welding —
Classification
ISO 14344, Welding consumables — Procurement of filler materials and fluxes
ISO 15792-1, Welding consumables — Test methods — Part 1: Test methods for all-weld metal test
specimens in steel, nickel and nickel alloys
© ISO 2019 – All rights reserved 1
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SIST EN ISO 24598:2019
ISO 24598:2019(E)
ISO 80000-1:2009, Quantities and units — Part 1: General. Corrected by ISO 80000-1:2009/Cor 1:2011
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Classification
4.1 General
Classification designations are based upon two approaches to indicate the chemical composition of the
solid wire electrode, the chemical composition of the all-weld metal deposit obtained with a solid wire
electrode or tubular cored electrode, and the tensile properties and impact properties of the all-weld
metal deposits obtained with a given electrode/flux combination. The two designation approaches
include additional designators for some other classification requirements, but not all, as is clear from
the provisions given in this document. In many cases, a given commercial product can be classified
in accordance with both systems. Then, either or both classification designations can be used for the
product.
A solid wire electrode shall be classified in accordance with its chemical composition as given in Table 3.
An all-weld metal deposit from a solid wire electrode or tubular cored electrode shall be classified
in accordance with the all-weld metal deposit composition, as given in Table 4, obtained with a
particular flux.
When the solid wire electrode or tubular cored electrode is classified in combination with a flux for
submerged arc welding, the classification shall be prefixed with a symbol in accordance with Clause 5
as appropriate.
4.2A Classification by chemical composition 4.2B Classification by tensile strength and
chemical composition
The classification is divided into three parts: The classification is divided into five parts:
1) the first part gives a symbol indicating the 1) the first part gives a symbol indicating the
product or process to be identified; product or process to be identified;
2) the second part gives a symbol indicating 2) the second part gives a symbol indicating
the chemical composition of the solid wire the strength and elongation of the all-weld
electrode (see Table 3) and all-weld metal metal deposit in the post-weld heat-treated
deposit (see Table 4); condition (see Table 1B);
2 © ISO 2019 – All rights reserved
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SIST EN ISO 24598:2019
ISO 24598:2019(E)
3) the third part gives a symbol indicating the 3) the third part gives a symbol indicating the
type of flux used (see 5.5). impact properties of all-weld metal deposits
in the same condition as specified for the
tensile strength (see Table 2B);
4) the fourth part gives a symbol indicating the
type of flux used (see 5.5);
5) the fifth part gives a symbol indicating
the chemical composition of the solid wire
electrode, if used (see Table 3), and of the all-
weld metal deposited by an electrode/flux
combination (see Table 4).
5 Symbols and requirements
5.1 General
A solid wire electrode can be classified separately based upon its chemical composition, as specified
in Table 3. The all-weld metal deposit composition and mechanical properties obtained with a
particular solid wire electrode or tubular cored electrode vary somewhat depending upon the flux
used. Accordingly, the classification of the all-weld metal deposit obtained with a particular solid wire
electrode or tubular cored electrode can be different for different fluxes.
5.2 Symbol for the product/process
5.2.1 General
The symbol for the weld deposit produced by a solid or tubular electrode using the submerged arc
welding process with a particular flux, shall be the letter “S” placed at the beginning of the designation.
5.2.2A Classification by chemical composition 5.2.2B Classification by tensile strength and
chemical composition
The symbol for the solid wire electrode for use The symbol for the solid wire electrode for use
in the submerged arc welding process shall be in the submerged arc welding process shall be
the letter “S” placed at the beginning of the wire the letters “SU” placed at the beginning of the
electrode designation. solid wire electrode designation.
The symbol for the tubular wire electrode for The symbol for the tubular wire electrode for
use in the submerged arc welding process shall use in the submerged arc welding process shall
be the letter “T” placed at the beginning of the be the letters “TU” placed at the beginning of the
wire electrode designation. tubular wire electrode designation.
5.3 Symbols for the tensile properties of the all-weld metal deposit
5.3A Classification by chemical composition 5.3B Classification by tensile strength and
chemical composition
No symbol shall be used for the mechanical The symbols in Table 1B indicate the tensile
properties of the all-weld metal deposit. The strength, yield strength and elongation of the all-
all-weld metal deposit produced in combina- weld metal deposit in the post-weld heat-treat-
tion with a particular flux shall fulfil the tensile ed condition determined in accordance with
property requirements specified in Table 1A. Clause 6, with a particular flux.
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SIST EN ISO 24598:2019
ISO 24598:2019(E)
5.4 Symbols for impact properties of all-weld metal deposits
5.4A Classification by chemical composition 5.4B Classification by tensile strength and
chemical composition
No symbol shall be used for the impact proper- The symbols in Table 2B indicate the tempera-
ties of the all-weld metal deposits. The all-weld ture at which an impact energy of 27 J is achieved
metal deposits produced in combination with a in the post-weld heat-treated condition under
particular flux shall fulfil the impact property the conditions given in Clause 6. Five test pieces
requirements specified in Table 1A. shall be tested. The lowest and highest values
obtained shall be disregarded. Two of the three
remaining values shall be greater than the
specified 27 J level; one of the three may be lower
but shall be no less than 20 J. The average of the
three remaining values shall be at least 27 J.
When an all-weld metal deposit has been
classified for a certain temperature, it automat-
ically covers any higher temperature listed in
Table 2B.
Table 1A — Mechanical properties of all-weld metal deposits (Classification by chemical
composition)
Impact energy
at +20 °C Heat treatment
Mini-
Minimum Minimu-
J
mum
a
Alloy tensile m elon-
proof Post-weld heat treat-
Minimum Preheat
symbol strength gation
Minimum
strength ment of test piece
average and inter-
R A b
m
single
R
p0,2 from pass tem-
Tempera-
value d
Time
three test perature c
ture
MPa MPa % °C °C min
Mo
355 510 22 47 38 <200 — —
MnMo
MoV 355 510 18 47 38 200 to 300 690 to 730 60
CrMo1 355 510 20 47 38 150 to 250 660 to 700 60
CrMoV1 435 590 15 24 21 200 to 300 680 to 730 60
CrMo2
400 500 18 47 38 200 to 300 690 to 750 60
CrMo2Mn
CrMo2L 400 500 18 47 38 200 to 300 690 to 750 60
CrMo5 400 590 17 47 38 200 to 300 730 to 760 60
CrMo9 435 590 18 34 27 200 to 300 740 to 780 120
CrMo91 415 585 17 47 38 250 to 350 750 to 760 180
e
250 to 350
CrMoWV12 550 690 15 34 27 or 740 to 780 120
e
400 to 500
Z Any other agreed mechanical properties
a
The gauge length is equal to five times the test piece diameter.
b
Only one single value lower than the minimum average is permitted.
c
The test piece shall be cooled in the furnace to 300 °C at a rate not exceeding 200 °C/h. The test piece may be removed
from the furnace at any temperature below 300 °C and allowed to cool in still air to room temperature.
d
Tolerance ±10 min.
e
Immediately after welding, the test piece shall be cooled down to 120 °C to 100 °C and kept at this temperature for at
least 1 h.
4 © ISO 2019 – All rights reserved
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SIST EN ISO 24598:2019
ISO 24598:2019(E)
Table 1B — Symbols for tensile properties
(Classification by tensile strength and chemical
composition)
Minimum
Minimum
Tensile
elonga-
yield
Symbol strength
b
a tion
strength
MPa
MPa
%
49 400 490 to 660 20
55 470 550 to 700 18
62 540 620 to 760 15
69 610 690 to 830 14
a
0,2 % offset (R ).
p0,2
b
The gauge length is equal to five times the
specimen diameter.
Table 2B — Symbols for impact properties of
all-weld metal deposits
(Classification by tensile strength and chemical
composition)
Temperature for minimum average
impact energy of 27 J
Symbol
°C
Z No requirements
Y +20
0 0
2 −20
3 −30
4 −40
5.5 Symbol for type of welding flux
The symbols for welding flux shall be in accordance with ISO 14174.
5.6 Symbol for the chemical composition of solid wire electrodes and of all-weld metal
deposits
The symbols in Table 3 indicate the chemical composition of the solid wire electrode, determined under
the conditions given in Clause
...
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