EN ISO 14174:2019
(Main)Welding consumables - Fluxes for submerged arc welding and electroslag welding - Classification (ISO 14174:2019)
Welding consumables - Fluxes for submerged arc welding and electroslag welding - Classification (ISO 14174:2019)
This document specifies requirements for classification of fluxes for submerged arc welding and electroslag welding for joining and overlay welding using wire electrodes, tubular cored electrodes, and strip electrodes.
NOTE This document was based on EN 760:1996.
Schweißzusätze - Pulver zum Unterpulverschweißen und Elektroschlackeschweißen - Einteilung (ISO 14174:2019)
Dieses Dokument legt Anforderungen für die Einteilung von Pulver zum Unterpulverschweißen und Elektroschlackeschweißen mit Draht , Fülldraht und Bandelektroden zum Verbindungs und Auftragschweißen fest.
ANMERKUNG Dieses Dokument basiert auf EN 760:1996.
Produits consommables pour le soudage - Flux pour le soudage à l'arc sous flux et le soudage sous laitier - Classification (ISO 14174:2019)
Le présent document spécifie les exigences de classification des flux pour le soudage à l'arc sous flux et le soudage sous laitier pour l'assemblage et le rechargement par soudage au moyen de fils-électrodes, de fils-électrodes fourrés et de feuillards.
NOTE Le présent document est basé sur l'EN 760:1996.
Dodajni materiali za varjenje - Praški za obločno varjenje pod praškom in pod žlindro - Razvrstitev (ISO 14174:2019)
V tem dokumentu so opredeljene zahteve za razvrščanje praškov za obločno varjenje pod praškom in pod žlindro za spajanje ter prekrivno varjenje z uporabo žičnih, strženskih in tračnih elektrod.
OPOMBA: Ta dokument temelji na standardu EN 760:1996.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2019
Nadomešča:
SIST EN ISO 14174:2012
Dodajni materiali za varjenje - Praški za obločno varjenje pod praškom in pod
žlindro - Razvrstitev (ISO 14174:2019)
Welding consumables - Fluxes for submerged arc welding and electroslag welding -
Classification (ISO 14174:2019)
Schweißzusätze - Pulver zum Unterpulverschweißen und Elektroschlackeschweißen -
Einteilung (ISO 14174:2019)
Produits consommables pour le soudage - Flux pour le soudage à l'arc sous flux et le
soudage sous laitier - Classification (ISO 14174:2019)
Ta slovenski standard je istoveten z: EN ISO 14174:2019
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 14174
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2019
EUROPÄISCHE NORM
ICS 25.160.20 Supersedes EN ISO 14174:2012
English Version
Welding consumables - Fluxes for submerged arc welding
and electroslag welding - Classification (ISO 14174:2019)
Produits consommables pour le soudage - Flux pour le Schweißzusätze - Pulver zum Unterpulverschweißen
soudage à l'arc sous flux et le soudage sous laitier - und Elektroschlackeschweißen - Einteilung (ISO
Classification (ISO 14174:2019) 14174:2019)
This European Standard was approved by CEN on 8 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,
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Turkey and United Kingdom.
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© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14174:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 14174:2019) 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 14174:2012.
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 14174:2019 has been approved by CEN as EN ISO 14174:2019 without any modification.
INTERNATIONAL ISO
STANDARD 14174
Third edition
2019-04
Welding consumables — Fluxes
for submerged arc welding and
electroslag welding — Classification
Produits consommables pour le soudage — Flux pour le soudage à
l'arc sous flux et le soudage sous laitier — Classification
Reference number
ISO 14174:2019(E)
©
ISO 2019
ISO 14174:2019(E)
© 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.
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Published in Switzerland
ii © ISO 2019 – All rights reserved
ISO 14174:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 1
5 Symbols . 2
5.1 Symbol for the product/process . 2
5.2 Symbol for method of manufacture . 2
5.3 Symbol for type of flux, characteristic chemical constituents . 2
5.4 Symbol for applications, flux class . 2
5.4.1 General. 2
5.4.2 Flux class 1 . 3
5.4.3 Flux classes 2 and 2B . 3
5.4.4 Flux class 3 . 3
5.4.5 Flux class 4 . 3
5.5 Symbol for metallurgical behaviour . 5
5.5.1 General. 5
5.5.2 Metallurgical behaviour, flux class 1 . 5
5.5.3 Metallurgical behaviour, flux classes 2 and 2B . 5
5.5.4 Metallurgical behaviour, flux class 3 . 6
5.5.5 Metallurgical behaviour, flux class 4 . 6
5.5.6 Determination of symbols for metallurgical behaviour . 6
5.6 Symbol for type of current . 7
5.7 Symbol for diffusible hydrogen content in deposited weld metal (class 1 fluxes only) . . 7
6 Particle size range . 8
7 Rounding procedure . 8
8 Retest . 8
9 Technical delivery conditions . 9
10 Marking . 9
11 Designation . 9
Annex A (informative) Characteristic chemical constituents of flux — Example of
determination from elemental analysis .11
Annex B (informative) Description of flux types .13
Bibliography .16
ISO 14174:2019(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
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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
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URL: 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 14174:2012), which has been technically
revised. The main changes compared to the previous edition are as follows:
— Subclause 5.4.3 now clarifies burn-out;
— ISO 18724 has been added to Clause 2;
— Table 3 has been expanded;
— Table 5 for flux class 2, welding current and voltage have been revised;
— an example of a Z option has been added;
— information on IIW Round robin testing of fluxes has been added to Annex B and as a bibliographical
reference;
— Clause B.16 has been corrected to include CaF (to align with EN 760).
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
INTERNATIONAL STANDARD ISO 14174:2019(E)
Welding consumables — Fluxes for submerged arc welding
and electroslag welding — Classification
1 Scope
This document specifies requirements for classification of fluxes for submerged arc welding and
electroslag welding for joining and overlay welding using wire electrodes, tubular cored electrodes,
and strip electrodes.
NOTE This document was based on EN 760:1996.
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 3690, Welding and allied processes — Determination of hydrogen content in arc weld metal
ISO 14171, Welding consumables — Solid wire electrodes, tubular cored electrodes and electrode/flux
combinations for submerged arc welding of non alloy and fine grain steels — Classification
ISO 14343, Welding consumables — Wire electrodes, strip electrodes, wires and rods for arc welding of
stainless and heat resisting steels — Classification
ISO 18274, Welding consumables — Solid wire electrodes, solid strip electrodes, solid wires and solid rods
for fusion welding of nickel and nickel alloys — Classification
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
Fluxes for submerged arc welding and electroslag welding for joining and overlay welding are granular,
fusible products of mainly mineral origin, which are manufactured by various methods. Fluxes
influence the chemical composition and the mechanical properties of the weld metal.
The classification of the fluxes is divided into seven parts:
1) the first part gives a symbol indicating the product/process (see 5.1);
2) the second part gives a symbol indicating the method of manufacture (see 5.2);
3) the third part gives a symbol indicating the type of flux, characteristic chemical constituents
(see Table 1);
ISO 14174:2019(E)
4) the fourth part gives a symbol indicating the applications, flux class (see 5.4);
5) the fifth part gives a symbol indicating the metallurgical behaviour (see 5.5);
6) the sixth part gives a symbol indicating the type of current (see 5.6);
7) the seventh part gives a symbol indicating the diffusible hydrogen content of deposited weld metal
(see Table 6) — only applicable for class 1 fluxes.
The classification is divided into two sections.
a) the compulsory section, which includes the symbols for process, method of manufacture,
characteristic chemical constituents, and applications, i.e. the symbols defined in 5.1, 5.2, 5.3 and 5.4.
b) the optional section, which includes the symbols for the metallurgical behaviour, type of current,
and diffusible hydrogen, i.e. the symbols defined in 5.5, 5.6 and 5.7.
5 Symbols
5.1 Symbol for the product/process
The symbol for the flux used in submerged arc welding for joining and overlay welding shall be the letter
S and for the flux used in electroslag welding for joining and overlay welding shall be the letters ES.
5.2 Symbol for method of manufacture
The symbol below indicates the method of manufacture:
— F: fused flux;
— A: agglomerated flux;
— M: mixed flux.
Fused fluxes are made by melting and granulating. Agglomerated fluxes are bound, granular mixtures
of finer raw materials. Mixed fluxes comprise all fluxes which, after fusing or agglomerating, are mixed
with one or more additional components or fluxes.
For particle size requirements in marking, see Clause 6.
5.3 Symbol for type of flux, characteristic chemical constituents
The symbols in Table 1 indicate the type of flux in accordance with the characteristic chemical
constituents. Elemental analysis shall be performed on representative samples of the flux. Any suitable
analytical technique may be used, but in cases of dispute reference shall be made to established
methods. Based on the elemental analysis of the flux, the characteristic chemical constituents of the
flux can be determined.
Examples of such determinations are shown in Annex A and descriptions of flux types are given in
Annex B.
5.4 Symbol for applications, flux class
5.4.1 General
A given flux may carry more than one class as specified in 5.4.2 to 5.4.5.
2 © ISO 2019 – All rights reserved
ISO 14174:2019(E)
5.4.2 Flux class 1
These are fluxes for submerged arc welding of non-alloy and fine grain steels, high-strength steels,
creep-resisting steels, and atmospheric corrosion-resisting steels.
In general, the fluxes do not contain alloying elements, other than Mn and Si, thus the weld metal
analysis is predominantly influenced by the composition of the wire/strip electrode and metallurgical
reactions. The fluxes are suitable for joint welding and/or overlay welding. In the case of joint welding,
some fluxes can be applied for both multi-run and single-run and/or two-run technique.
In the flux designation, the digit 1 indicates class 1.
5.4.3 Flux classes 2 and 2B
These are fluxes for joint welding of stainless and heat-resisting steels and/or nickel and nickel alloys
1)
and corrosion-resistant overlay welding . Fluxes of these classes can contain alloying elements
compensating for the burn-out (elements lost to the slag).
In the flux designation, the digit 2 is used to indicate class 2 fluxes mainly suited for joint welding, but
which can also be used for strip cladding. 2B is used for fluxes especially designed for strip cladding.
5.4.4 Flux class 3
These are fluxes mainly for hard-facing overlay welding by transfer of alloying elements from the flux,
such as C, Cr or Mo.
In the flux designation, the digit 3 indicates class 3.
5.4.5 Flux class 4
These are other fluxes for which classes 1 to 3 are not applicable, e.g. fluxes for copper alloys.
In the flux designation, the digit 4 indicates class 4.
a,b
Table 1 — Symbol for type of flux, characteristic chemical constituents
Symbol Characteristic chemical Limit of constituent
(description) constituents % (by mass)
MS MnO + SiO ≥50
(Manganese-silicate) CaO ≤15
CS CaO + MgO + SiO ≥55
(Calcium-silicate) CaO + MgO ≥15
CG CaO + MgO 5 to 50
(Calcium-magnesium) CO ≥2
Fe ≤10
CB CaO + MgO 30 to 80
(Calcium-magnesium basic) CO ≥2
Fe ≤10
a
Calculations can be made as shown in Annex A.
b
A description of the characteristics of each of the types of flux is given in Annex B.
c
Fluxes for which the chemical composition is not listed shall be symbolized by the letter Z. The chemical
composition ranges are not specified and it is possible that two fluxes with the same Z classification are not
interchangeable.
1) Not all fluxes suitable for use with stainless steel filler metal are also suitable for nickel and nickel alloy filler
metal.
ISO 14174:2019(E)
Table 1 (continued)
Symbol Characteristic chemical Limit of constituent
(description) constituents % (by mass)
CG-I CaO + MgO 5 to 45
(Calcium-magnesium with iron) CO ≥2
Fe 15 to 60
CB-I CaO + MgO 10 to 70
(Calcium-magn
...
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