Welding consumables - Wire electrodes, strip electrodes, wires and rods for arc welding of stainless and heat resisting steels - Classification (ISO 14343:2017)

This document specifies requirements for classification of wire electrodes, strip electrodes, wires and
rods for gas-shielded metal arc welding, gas tungsten arc welding, plasma arc welding, submerged
arc welding, electroslag welding and laser beam welding of stainless and heat-resisting steels. The
classification of the wire electrodes, strip electrodes, wires and rods is based upon their chemical
composition.
This document is a combined specification providing for classification utilizing a system based upon
nominal composition (system A), or utilizing a system based upon alloy type (system B).
a) Paragraphs which carry the label “classification according to nominal composition” and the suffix
letter “A”, or “ISO 14343-A”, are applicable only to products classified according to system A;
b) Paragraphs which carry the label “classification according to alloy type” and the suffix letter “B”, or
“ISO 14343-B”, are applicable only to products classified according to system B.
c) Paragraphs which carry neither label nor suffix letter are applicable to products that can be
classified according to either system A or B or both.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 544, Welding consumables — Technical delivery conditions for filler materials and fluxes— Type of
product, dimensions, tolerances and markings
ISO 14344, Welding consumables — Procurement of filler materials and fluxes
ISO 80000-1:2009, Quantities and units — Part 1: General. Corrected by ISO 80000-1:2009/Cor 1:2011

Schweißzusätze - Drahtelektroden, Bandelektroden, Drähte und Stäbe zum Lichtbogenschweißen von korrosionsbeständigen und hitzebeständigen Stählen - Einteilung (ISO 14343:2017)

Dieses Dokument legt die Anforderungen zur Einteilung von Drahtelektroden, Bandelektroden, Drähten und Stäben zum Metall-Schutzgasschweißen, Wolfram-Inertgasschweißen, Plasmaschweißen, Unterpulver¬schweißen, Elektroschlackeschweißen und Laserstrahlschweißen nichtrostender und hitzebeständiger Stähle fest. Die Einteilung der Drahtelektroden, Bandelektroden, Drähte und Stäbe beruht auf ihrer chemischen Zusammensetzung.
Dieses Dokument kombiniert Festlegungen für Einteilungen, denen ein System beruhend auf der Nennzusammensetzung (System A) oder ein System beruhend auf dem Legierungstyp (System B) zugrunde liegt.
a)   Absätze mit der Bezeichnung „Einteilung nach der Nennzusammensetzung“ oder die durch ein nachge-stelltes „A“ oder durch „ISO 14343 A“ gekennzeichnet sind, sind nur für solche Produkte anwendbar, die nach System A eingeteilt sind.
b)   Absätze mit der Bezeichnung „Einteilung nach dem Legierungstyp“ oder die durch ein nachgestelltes „B“ oder durch „ISO 14343-B“ gekennzeichnet sind, sind nur für solche Produkte anwendbar, die nach System B eingeteilt sind.
c)   Absätze ohne eine dieser Bezeichnungen sind für Produkte anwendbar, die nach System A oder B oder nach beiden Systemen eingeteilt werden können.

Produits consommables pour le soudage - Fils-électrodes, électrodes en feuillards, fils d’apport et baguettes de soudage à l’arc des aciers inoxydables et des aciers résistant aux températures élevées - Classification (ISO 14343:2017)

ISO 14343:2017 spécifie les exigences relatives à la classification des fils-électrodes, électrodes en feuillard, fils d'apport et baguettes de soudage, pour le soudage à l'arc avec électrode fusible sous protection gazeuse, le soudage à l'arc sous protection gazeuse avec électrode de tungstène (soudage TIG), le soudage plasma, le soudage à l'arc sous flux, le soudage sous laitier (électroconducteur) et le soudage laser des aciers inoxydables et des aciers résistant aux températures élevées. La classification des fils-électrodes, électrodes en feuillard, fils d'apport et baguettes de soudage est basée sur leur composition chimique.
Le présent document permet l'usage de deux systèmes parallèles de classification, par composition nominale (système A) et/ou par type d'alliage (système B).
a)    Les paragraphes qui portent la mention «classification d'après la composition nominale» et la lettre «A», ou «ISO 14343-A», ne sont applicables qu'aux produits classifiés selon le système A;
b)    les paragraphes qui portent la mention «classification d'après le type d'alliage» et la lettre «B», ou «ISO 14343-B», ne sont applicables qu'aux produits classifiés selon le système B;
c)    les paragraphes qui ne portent aucune mention et aucune lettre sont applicables aux produits classifiés soit d'après le système A, soit d'après le système B, soit d'après les systèmes A et B.

Dodajni materiali za varjenje - Žične elektrode, trakovi, žice in palice za obločno varjenje nerjavnih in ognjeodpornih jekel - Razvrstitev (ISO 14343:2017)

Ta dokument določa zahteve za razvrstitev žičnih elektrod, trakov, žic in palic za obločno varjenje v zaščitnih plinih, za varjenje po postopku TIG, obločno varjenje s plazmo, obločno varjenje pod praškom, varjenje s pretaljevanjem ter lasersko varjenje nerjavnih in toplotno odpornih jekel. Razvrstitev žičnih elektrod, trakov, žic in palic temelji na njihovi kemijski sestavi.
Ta dokument je kombinirana specifikacija, ki omogoča razvrstitev z uporabo sistema na osnovi nominalne sestave (sistem A) ali sistema na osnovi vrste zlitine (sistem B).
a) Odstavki z oznako »razvrstitev v skladu z nominalno sestavo« in dodatna črka »A«, ali »ISO 14343-A«, se uporabljajo samo za proizvode, razvrščene po sistemu A;
b) Odstavki z oznako »razvrstitev v skladu z vrsto zlitine« in dodatno črko »B«, ali »ISO 14343-B«, se uporabljajo samo za proizvode, razvrščene po sistemu B;
c) Odstavki brez oznake ali dodatne črke se uporabljajo za proizvode, ki jih je mogoče razvrstiti po sistemu A, B ali obeh sistemih.

General Information

Status
Published
Public Enquiry End Date
29-Sep-2015
Publication Date
08-Aug-2017
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
31-May-2017
Due Date
05-Aug-2017
Completion Date
09-Aug-2017

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 14343:2017
01-september-2017
1DGRPHãþD
SIST EN ISO 14343:2010
'RGDMQLPDWHULDOL]DYDUMHQMHäLþQHHOHNWURGHWUDNRYLåLFHLQSDOLFH]DREORþQR
YDUMHQMHQHUMDYQLKLQRJQMHRGSRUQLKMHNHO5D]YUVWLWHY ,62
Welding consumables - Wire electrodes, strip electrodes, wires and rods for arc welding
of stainless and heat resisting steels - Classification (ISO 14343:2017)
Schweißzusätze - Drahtelektroden, Bandelektroden, Drähte und Stäbe zum
Lichtbogenschweißen von korrosionsbeständigen und hitzebeständigen Stählen -
Einteilung (ISO 14343:2017)
Produits consommables pour le soudage - Fils-électrodes, électrodes en feuillards, fils
d’apport et baguettes de soudage à l’arc des aciers inoxydables et des aciers résistant
aux températures élevées - Classification (ISO 14343:2017)
Ta slovenski standard je istoveten z: EN ISO 14343:2017
ICS:
25.160.20 Potrošni material pri varjenju Welding consumables
SIST EN ISO 14343:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 14343:2017

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SIST EN ISO 14343:2017


EN ISO 14343
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2017
EUROPÄISCHE NORM
ICS 25.160.20 Supersedes EN ISO 14343:2009
English Version

Welding consumables - Wire electrodes, strip electrodes,
wires and rods for arc welding of stainless and heat
resisting steels - Classification (ISO 14343:2017)
Produits consommables pour le soudage - Fils- Schweißzusätze - Drahtelektroden, Bandelektroden,
électrodes, électrodes en feuillard, fils d'apport et Drähte und Stäbe zum Lichtbogenschweißen von
baguettes de soudage pour le soudage à l'arc des aciers nichtrostenden und hitzebeständigen Stählen -
inoxydables et des aciers résistant aux températures Einteilung (ISO 14343:2017)
élevées - Classification (ISO 14343:2017)
This European Standard was approved by CEN on 13 March 2017.

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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14343:2017 E
worldwide for CEN national Members.

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SIST EN ISO 14343:2017
EN ISO 14343:2017 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 14343:2017
EN ISO 14343:2017 (E)
European foreword
This document (EN ISO 14343:2017) 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 October 2017 and conflicting national standards shall
be withdrawn at the latest by October 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 14343:2009.
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 14343:2017 has been approved by CEN as EN ISO 14343:2017 without any modification.

3

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SIST EN ISO 14343:2017

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SIST EN ISO 14343:2017
INTERNATIONAL ISO
STANDARD 14343
Third edition
2017-03
Welding consumables — Wire
electrodes, strip electrodes, wires and
rods for arc welding of stainless and
heat resisting steels — Classification
Produits consommables pour le soudage — Fils-électrodes, électrodes
en feuillard, fils d’apport et baguettes de soudage pour le soudage à
l’arc des aciers inoxydables et des aciers résistant aux températures
élevées — Classification
Reference number
ISO 14343:2017(E)
©
ISO 2017

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SIST EN ISO 14343:2017
ISO 14343:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

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SIST EN ISO 14343:2017
ISO 14343:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 2
4.1 General . 2
4.2 Symbols for products/processes . 2
4.3 Symbols for chemical composition . 2
5 Properties of all-weld metal .12
6 Chemical analysis .12
7 Rounding procedure .12
8 Retesting .12
9 Technical delivery conditions .12
10 Examples of designation .12
Annex A (informative) Expected minimum tensile properties of all-weld metal .14
Bibliography .17
© ISO 2017 – All rights reserved iii

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SIST EN ISO 14343:2017
ISO 14343:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the 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 the following
URL: w w w . i s o .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 14343:2009), which has been technically
revised and contains the following changes:
— a number of new alloy designations have been added to Table 1 and Table A.1;
— the chemistries of some alloy designations have been revised in Table 1;
— the mechanical properties of some alloy designations have been revised in Table A.1;
— Clause 7 has been updated to new text for all new and revised standards;
— examples for Z designations have been added to Clause 10.
Requests for official interpretations of 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.
iv © ISO 2017 – All rights reserved

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SIST EN ISO 14343:2017
ISO 14343:2017(E)

Introduction
This document provides a classification system for wire electrodes, strip electrodes, wires and rods for
arc welding of stainless and heat resisting steels. It recognizes that there are two somewhat different
approaches in the global market to classifying a given welding consumable, and allows for either or
both to be used, to suit a particular market need. Many, but not all, commercial products addressed by
this document can be classified using both approaches, and suitable products can also be marked.
System A uses the nominal composition approach with designators to indicate the principal alloying
elements at their nominal levels, in a particular sequence, and which is sometimes followed by chemical
element symbols to indicate compositional modifications to the original grade. System B uses the
alloy type approach with three- or four-digit designations for certain grades, sometimes followed by
one or more chemical element symbols indicating compositional modifications of the grade. In both
approaches, classification is based upon the chemical composition of the product. In many cases, a given
product can be classified using both approaches, because the composition ranges, although slightly
different, overlap to a considerable extent between the two.
For stainless steel welding consumables, there is no unique relationship between the product form
(wire electrode, strip electrode, wire or rod) and the welding process used (gas-shielded metal arc
welding, gas tungsten arc welding, plasma arc welding, submerged arc welding, electroslag welding
and laser beam welding). For this reason, the wire electrodes, strip electrodes, wires or rods can be
classified on the basis of any of the above product forms and can be used, as appropriate, for more than
one of the above processes.
[1]
Classification according to system A, by nominal composition, is based mainly on EN 12072 , while
that of system B, by alloy type, is mainly based upon standards used around the Pacific Rim.
© ISO 2017 – All rights reserved v

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SIST EN ISO 14343:2017

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SIST EN ISO 14343:2017
INTERNATIONAL STANDARD ISO 14343:2017(E)
Welding consumables — Wire electrodes, strip electrodes,
wires and rods for arc welding of stainless and heat
resisting steels — Classification
1 Scope
This document specifies requirements for classification of wire electrodes, strip electrodes, wires and
rods for gas-shielded metal arc welding, gas tungsten arc welding, plasma arc welding, submerged
arc welding, electroslag welding and laser beam welding of stainless and heat-resisting steels. The
classification of the wire electrodes, strip electrodes, wires and rods is based upon their chemical
composition.
This document is a combined specification providing for classification utilizing a system based upon
nominal composition (system A), or utilizing a system based upon alloy type (system B).
a) Paragraphs which carry the label “classification according to nominal composition” and the suffix
letter “A”, or “ISO 14343-A”, are applicable only to products classified according to system A;
b) Paragraphs which carry the label “classification according to alloy type” and the suffix letter “B”, or
“ISO 14343-B”, are applicable only to products classified according to system B.
c) Paragraphs which carry neither label nor suffix letter are applicable to products that can be
classified according to either system A or B or both.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 544, Welding consumables — Technical delivery conditions for filler materials and fluxes— Type of
product, dimensions, tolerances and markings
ISO 14344, Welding consumables — Procurement of filler materials and fluxes
ISO 80000-1:2009, Quantities and units — Part 1: General. Corrected by ISO 80000-1:2009/Cor 1:2011
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
3.1
rod
form of welding filler metal, normally packaged in straight lengths, that does not conduct the welding
current, used in gas tungsten arc and plasma arc welding
© ISO 2017 – All rights reserved 1

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SIST EN ISO 14343:2017
ISO 14343:2017(E)

3.2
strip electrode
form of welding filler metal, normally packaged as coils, having a rectangular cross-section of width much
greater than thickness, that becomes part of the welding circuit through which current is conducted, and
that terminates at the arc for submerged arc welding, or at the slag bath for electroslag welding
3.3
wire
form of welding filler metal, normally packaged as coils, spools or drums, that does not conduct the
welding current, for gas tungsten arc, plasma arc welding and laser beam welding
3.4
wire electrode
form of welding filler metal, normally packaged as coils, spools or drums, that becomes part of the
welding circuit through which electrical current is conducted, and that terminates at the arc, used in
gas-shielded metal arc and submerged arc welding
4 Classification
4.1 General
A wire electrode, strip electrode, wire or rod shall be classified according to its chemical composition
as given in Table 1.
The classification is divided into two parts:
a) the first gives a symbol indicating the product/process to be identified;
b) the second gives a symbol indicating the chemical composition of the wire electrode, strip electrode,
wire or rod.
4.2 Symbols for products/processes
4.2A Classification according to nominal com- 4.2B Classification according to alloy type
position
The symbol for the wire electrode, strip electrode, No symbol is used to indicate the welding process.
wire or rod used in the arc welding process shall be
The symbol for solid stainless and heat-resisting
the letter
steel wire electrodes, wires and rods for use in all
— “G” for gas metal arc welding, welding processes shall be the letters “SS”. The
initial “S” indicates solid wire as distinguished from
— “W” for gas tungsten arc welding,
covered electrodes or from tubular cored wires or
— “P” for plasma arc welding, tubular cored rods.
— “S” for submerged arc welding, The symbol for strip electrodes for use in sub-
merged arc welding or electroslag welding shall be
— “B” for submerged arc welding or electroslag
the letters “BS”. The “B” indicates a strip electrode,
welding with strip electrode, or
while the second “S” in “SS” and the “S” in “BS” indi-
— “L” for laser beam welding, placed at the begin- cates that the alloy system is stainless or heat-resist-
ning of the designation. ing steel.
See Clause 10 for designation examples.
See Clause 10 for designation examples.
4.3 Symbols for chemical composition
The symbols presented in Table 1 indicate the chemical composition of the wire electrode, strip
electrode, wire or rod determined using the analysis specified in Clause 6.
2 © ISO 2017 – All rights reserved

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SIST EN ISO 14343:2017
ISO 14343:2017(E)

© ISO 2017 – All rights reserved 3
Table 1 — Chemical composition requirements
a b
Alloy designation Chemical composition, % by mass
according to
Nominal Alloy type
c c d
composition ISO 14343-B C Si Mn P S Cr Ni Mo N Cu Nb Other
ISO 14343-A
Martensitic/ferritic types
— 409 0,08 0,8 0,8 0,03 0,03 10,5 0,6 0,50 — 0,75 — Ti
to 13,5 10 × C
to 1,5
— 409Nb 0,08 1,0 0,8 0,04 0,03 10,5 to 0,6 0,50 — 0,75 10 × C —
13,5 to 0,75
13 (410) 0,15 1,0 1,0 0,03 0,02 12,0 to 0,5 0,5 — 0,5 — —
15,0
(13) 410 0,12 0,5 0,6 0,03 0,03 11,5 to 0,6 0,75 — 0,75 — —
13,5
13 L — 0,05 1,0 1,0 0,03 0,02 12,0 to 0,5 0,5 — 0,5 — —
15,0
13 4 (410NiMo) 0,05 1,0 1,0 0,03 0,02 11,0 to 14,0 3,0 to 0,4 to — 0,5 — —
5,0 1,0
(13 4) 410NiMo 0,06 0,5 0,6 0,03 0,03 11,0 to 4,0 to 0,4 to — 0,75 — —
12,5 5,0 0,7
— 420 0,25 to 0,5 0,6 0,03 0,03 12,0 to 0,6 0,75 — 0,75 — —
0,40 14,0
16 5 1 — 0,04 0,2 to 1,2 to 0,02 0,01 15,0 to 17,0 4,5 to 0,9 to — 0,5 — —
0,7 3,5 6,5 1,5
17 (430) 0,12 1,0 1,0 0,03 0,02 16,0 to 19,0 0,5 0,5 — 0,5 — —
(17) 430 0,10 0,5 0,6 0,03 0,03 15,5 to 17,0 0,6 0,75 — 0,75 — —
— 430Nb 0,10 0,5 0,6 0,03 0,03 15,5 to 17,0 0,6 0,75 — 0,75 8 × C to 1,2 —
(18 L Nb) 430LNb 0,03 0,5 0,6 0,03 0,03 15,5 to 17,0 0,6 0,75 — 0,75 8 × C to 1,2 —
18 L Nb (430LNb) 0,03 0,5 0,8 0,03 0,02 17,8 to 18,8 0,5 0,5 0,02 0,5 0,05 + —
7(C+N) to 0,6
18 L Nb Si — 0,03 0,5 to 1,0 0,03 0,03 17,5 to 19,5 0,5 0,5 0,02 0,5 0,05 + 7(C+N) —
1,5 to 0,6
18 L Nb Ti — 0,03 1,5 1,0 0,03 0,03 17,5 to 19,5 0,5 0,5 0,02 0,5 8 × C Ti 10 × C
to 0,8 to 0,5

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SIST EN ISO 14343:2017
ISO 14343:2017(E)

4 © ISO 2017 – All rights reserved
Table 1 (continued)
a b
Alloy designation Chemical composition, % by mass
according to
Nominal Alloy type
c c d
composition ISO 14343-B C Si Mn P S Cr Ni Mo N Cu Nb Other
ISO 14343-A
— 439 0,04 0,8 0,8 0,03 0,03 17,0 to 19,0 0,6 0,5 — 0,75 — Ti
10 × C to 1,1
g g
— 446LMo 0,015 0,4 0,4 0,02 0,02 25,0 to 0,75 to 0,015 — —
27,5 1,00
Austenitic types
— 209 0,05 0,90 4,0 to 0,03 0,03 20,5 to 9,5 to 1,5 to 0,10 to 0,75 — V 0,10 to
7,0 24,0 12,0 3,0 0,30 0,30
— 218 0,10 3,5 to 7,0 to 0,03 0,03 16,0 to 8,0 to 0,75 0,08 to 0,75 — —
4,5 9,0 18,0 9,0 0,18
— 219 0,05 1,00 8,0 to 0,03 0,03 19,0 to 5,5 to 0,75 0,10 to 0,75 — —
10,0 21,5 7,0 0,30
— 240 0,05 1,00 10,5 to 0,03 0,03 17,0 to 19,0 4,0 to 0,75 0,10 to 0,75 — —
13,5 6,0 0,30
— 308 0,08 0,30 to 1,0 to 0,03 0,03 19,5 to 9,0 to 0,75 — 0,75 — —
0,65 2,5 22,0 11,0
— 308Si 0,08 0,65 to 1,0 to 0,03 0,03 19,5 to 9,0 to 0,75 — 0,75 — —
1,00 2,5 22,0 11,0
19 9 L (308L) 0,03 0,65 1,0 to 0,03 0,02 19,0 to 9,0 to 0,5 — 0,5 — —
2,5 21,0 11,0
(19 9 L) 308L 0,03 0,30 to 1,0 to 0,03 0,03 19,5 to 9,0 to 0,75 — 0,75 — —
0,65 2,5 22,0 11,0
19 9 L Si (308LSi) 0,03 0,65 to 1,0 to 0,03 0,02 19,0 to 9,0 to 0,5 — 0,5 — —
1,2 2,5 21,0 11,0
(19 9 L Si) 308LSi 0,03 0,65 to 1,0 to 0,03 0,03 19,5 to 9,0 to 0,75 — 0,75 — —
1,00 2,5 22,0 11,0
— 308N2 0,10 0,90 1,0 to 0,03 0,03 20,0 to 7,0 to 0,75 0,12 to 0,75 — —
4,0 25,0 11,0 0,30
1,0 to 19,0 to 9,0 to
19 9 Nb (347) 0,08 0,65 0,03 0,02 0,5 — 0,5 10 × C to 1,0 —
2,5 21,0 11,0

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SIST EN ISO 14343:2017
ISO 14343:2017(E)

© ISO 2017 – All rights reserved 5
Table 1 (continued)
a b
Alloy designation Chemical composition, % by mass
according to
Nominal Alloy type
c c d
composition ISO 14343-B C Si Mn P S Cr Ni Mo N Cu Nb Other
ISO 14343-A
0,30 to 1,0 to 19,0 to 9,0 to
(19 9 Nb) 347 0,08 0,03 0,03 0,75 — 0,75 10 × C to 1,0 —
0,65 2,5 21,5 11,0
0,65 to 1,0 to 19,0 to 9,0 to
19 9 Nb Si (347Si) 0,08 0,03 0,02 0,5 — 0,5 10 × C to 1,0 —
1,2 2,5 21,0 11,0
0,65 to 1,0 to 19,0 to 9,0 to
(19 9 Nb Si) 347Si 0,08 0,03 0,03 0,75 — 0,75 10 × C to 1,0 —
1,00 2,5 21,5 11,0
1,0 to 19,0 to 9,0 to
— 347L 0,03 0,65 0,03 0,03 0,75 — 0,75 10 × C to 1,0 —
2,5 21,5 11,0
0,04 to 1,0 to 19,0 to 9,0 to
— 347H 0,65 0,03 0,03 0,75 — 0,75 10 × C to 1,0 —
0,08 2,5 21,5 11,0
0,30 to 1,0 to 18,0 to 11,0 to 2,0 to
— 316 0,08 0,03 0,03 — 0,75 — —
0,65 2,5 20,0 14,0 3,0
0,65 to 1,0 to 18,0 to 11,0 to 2,0 to
— 316Si 0,08 0,03 0,03 — 0,75 — —
1,00 2,5 20,0 14,0 3,0
1,0 to 18,0 to 11,0 to 2,5 to
19 12 3 L (316L) 0,03 0,65 0,03 0,02 — 0,5 — —
2,5 20,0 14,0 3,0
0,30 to 1,0 to 18,0 to 11,0 to 2,0 to
(19 12 3 L) 316L 0,03 0,03 0,03 — 0,75 — —
0,65 2,5 20,0 14,0 3,0
0,65 to 1,0 to 18,0 to 11,0 to 2,5 to
19 12 3 L Si (316LSi) 0,03 0,03 0,02 — 0,5 — —
1,2 2,5 20,0 14,0 3,0
0,65 to 1,0 to 18,0 to 11,0 to 2,0 to
(19 12 3 L Si) 316LSi 0,03 0,03 0,03 — 0,75 — —
1,00 2,5 20,0 14,0 3,0
1,0 to 18,0 to 11,0 to 2,0 to 1,0 to
— 316LCu 0,03 0,65 0,03 0,03 — — —
2,5 20,0 14,0 3,0 2,5
1,0 to 18,0 to 11,0 to 2,5 to
19 12 3 Nb (318) 0,08 0,65 0,03 0,02 — 0,5 10 × C to 1,0 —
2,5 20,0 14,0 3,0
0,30 to 1,0 to 18,0 to 11,0 to 2,0 to 8 × C to 1,0;
(19 12 3 Nb) 318 0,08 0,03 0,03 — 0,75 —
0,65 2,5 20,0 14,0 3,0 0,2 min.
1,0 to 18,0 to 11,0 to 2,0 to 8 × C to 1,0;
— 318L 0,03 0,65 0,03 0,03 — 0,75 —
2,5 20,0 14,0 3,0 0,2 min.

---------------------- Page: 17 ----------------------

SIST EN ISO 14343:2017
ISO 14343:2017(E)

6 © ISO 2017 – All rights reserved
Table 1 (continued)
a b
Alloy designation Chemical composition, % by mass
according to
Nominal Alloy type
c c d
composition ISO 14343-B C Si Mn P S Cr Ni Mo N Cu Nb Other
ISO 14343-A
0,65 to 1,0 to 18,0 to 11,0 to 2,5 to
19 12 3 Nb Si — 0,08 0,03 0,02 — 0,5 10 × C to 1,0 —
1,2 2,5 20,0 14,0 3,0
0,30 to 1,0 to 18,5 to 13,0 to 3,0 to
— 317 0,08 0,03 0,03 — 0,75 — —
0,65 2,5 20,5 15,0 4,0
0,30 to 1,0 to 18,5 to 13,0 to 3,0 to
(18 15 3 L) 317L 0,03 0,03 0,03 — 0,75 — —
0,65 2,5 20,5 15,0 4,0
Ti
0,30 to 1,0 to 18,5 to 9,0 to
— 321 0,08 0,03 0,03 0,75 — 0,75 — 9 × C to 1,0;
0,65 2,5 20,5 10,5
0,2 min.
Ferritic-austenitic types (sometimes referred to as austenitic-ferritic types)
21,0 to 7,0 to 2,5 to 0,10 to
22 9 3 N L (2209) 0,03 1,0 2,5 0,03 0,02 0,5 — —
24,0 10,0 4,0 0,20
0,5 to 21,5 to 7,5 to 2,5 to 0,08 to
(22 9 3 N L) 2209 0,03 0,90 0,03 0,03 0,75 — —
2,0 23,5 9,5 3,5 0,20
22,5 to 6,5 to 0,10 to
23 7 N L 2307 0,03 1,0 2,5 0,03 0,02 0,8 0,5 — —
25,5 9,5 0,20
24,0 to 6,0 to 1,5 to
25 7 2 L — 0,03 1,0 2,5 0,03 0,02 — 0,5 — —
27,0 8,0 2,5
24,0 to 8,0 to 2,5 to 0,10 to 1,5 to
25 9 3 Cu N L — 0,03 1,0 2,5 0,03 0,02 — —
27,0 11,0 4,0 0,20 2,5
24,0 to 8,0 to 2,5 to 0,20 to
25 9 4 N L 2594 0,03 1,0 2,5 0,03 0,02 1,5 — W 1,0
27,0 10,5 4,5 0,30
0,5 to 23,0 to 8,0 to 3,0 to 0,08 to
— 329J4L 0,03 0,90 0,03 0,03 1,0 — —
2,5 27,0 11,0 4,5 0,30
e
Fully austenitic types
1,0 to 17,0 to 13,0 to 2,5 to
e e
18 15 3 L (317L) 0,03 1,0 0,03 0,02 — 0,5 — —
4,0 20,0 16,0 4,0
1,0 to 17,0 to 16,0 to 3,5 to 0,10 to
e
18 16 5 N L — 0,03 1,0 0,03 0,02 0,5 — —
4,0 20,0 19,0 5,0 0,20

---------------------- Page: 18 ----------------------

SIST EN ISO 14343:2017
ISO 14343:2017(E)

© ISO 2017 – All rights reserved 7
Table 1 (continued)
a b
Alloy designation Chemical composition, % by mass
according to
Nominal Alloy type
c c d
composition ISO 14343-B C Si Mn P S Cr Ni Mo N Cu Nb Other
ISO 14343-A
1,0 to 17,0 to 12,0 to 3,0 to
e e
19 13 4 L (317L) 0,03 1,0 0,03 0,02 — 0,5 — —
5,0 20,0 15,0 4,5
1,0 to 17,0 to 12,0 to 3,0 to 0,10 to
e
19 13 4 N L — 0,03 1,0 0,03 0,02 0,5 — —
5,0 20,0 15,0 4,5 0,20
1,0 to 19,0 to 24,0 to 4,0 to 1,0 to
e e
20 25 5 Cu L (385) 0,03 1,0 0,03 0,02 — — —
4,0 22,0 27,0 6,0 2,0
1,0 to 19,5 to 24,0 to 4,2 to 1,2 to
e e
(20 25 5 Cu L) 385 0,025 0,50 0,02 0,03 — — —
2,5 21,5 26,0 5,2 2,0
1,0 to 19,0 to 24,0 to 4,0 to 0,10 to 1,0 to
e
20 25 5 Cu N L — 0,03 1,0 0,03 0,02 — —
4,0 22,0 27,0 6,0 0,20 2,0
5,0 to 19,0 to 15,0 to 2,5 to
e
20 16 3 Mn L — 0,03 1,0 0,03 0,02 — 0,5 — —
9,0 22,0 18,0 4,5
0,30 to 5,0 to 19,0 to 15,0 to 2,5 to 0,10 to
e e
20 16 3 Mn N L 316LMn 0,03 0,03 0,03 0,5 — —
0,65 9,0 22,0 18,0 3,5 0,20
3,5 to 24,0 to 21,0 to 1,5 to 0,10 to
e
25 22 2 N L — 0,03 1,0 0,03 0,02 0,5 — —
6,5 27,0 24,0 3,0 0,20
1,5 to 25,0 to 21,0 to 4,0 to 0,30 to
e
26 23 5 N — 0,02 1,0 0,02 0,01 0,5 — —
5,5 27,0 25,0 6,0 0,40
1,0 to 26,0 to 30,0 to 3,0 to 0,7 to
e e
27 31 4 Cu L (383) 0,03 1,0 0,03 0,02 — — —
3,0 29,0 33,0 4,5 1,5
1,0 to 26,5 to 30,0 to 3,2 to 0,7 to
e e
(27 31 4 Cu L) 383 0,025 0,50 0,02 0,03 — — —
2,5 28,5 33,0 4,2 1,5
19,0 to 32,0 to 2,0 to 3,0 to 8 × C
e
— 320 0,07 0,60 2,5 0,03 0,03 — —
21,0 36,0 3,0 4,0 to 1,0
1,5 to 19,0 to 32,0 to 2,0 to 3,0 to 8 × C
e
— 320LR 0,025 0,15 0,015 0,02 — —
2,0 21,0 36,0 3,0 4,0 to 0,40
31,0 to 30,0 to 0,5 to 0,35 to 0,3 to
— 33–31 0,015 0,50 2,00 0,02 0,01 — —
35,0 33,0 2,0 0,60 1,2

---------------------- Page: 19 ----------------------

SIST EN ISO 14343:2017
ISO 14343:2017(E)

8 © ISO 2017 – All rights reserved
Table 1 (continued)
a b
Alloy designation Chemical composition, % by mass
according to
Nominal Alloy type
c c d
composition ISO 14343-B C Si Mn P S Cr Ni Mo N Cu Nb Other
ISO 14343-A
Special ty
...

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