SIST EN 13084-6:2026

SLOVENSKI STANDARD
01-januar-2026
Prostostoječi dimniki - 6. del: Jeklene tuljave - Projektiranje in izvedba
Free-standing chimneys - Part 6: Steel liners - Design and execution
Freistehende Schornsteine - Teil 6: Innenrohre aus Stahl - Bemessung und Ausführung
Cheminées autoportantes - Partie 6: Parois intérieures en acier - Conception et mise en
oeuvre
Ta slovenski standard je istoveten z: EN 13084-6:2025
ICS:
91.060.40 Dimniki, jaški, kanali Chimneys, shafts, ducts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13084-6
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2025
EUROPÄISCHE NORM
ICS 91.060.40 Supersedes EN 13084-6:2015
English Version
Free-standing chimneys - Part 6: Steel liners - Design and
execution
Cheminées autoportantes - Partie 6: Parois intérieures Freistehende Schornsteine - Teil 6: Innenrohre aus
en acier - Conception et mise en oeuvre Stahl - Bemessung und Ausführung
This European Standard was approved by CEN on 5 October 2025.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13084-6:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Material . 7
4.1 General. 7
4.2 Steels. 7
5 General design and construction requirements . 7
5.1 General. 7
5.2 Construction details . 7
5.2.1 General. 7
5.2.2 Supports and/or guides . 8
5.2.3 Openings in liners . 8
5.2.4 Drainage system . 9
5.2.5 Seals, gaskets and jointing compounds . 9
5.2.6 Expansion joints . 9
5.2.7 Insulation . 9
5.2.8 Coating . 9
5.2.9 Cladding . 10
5.2.10 Internal protection . 10
5.2.11 Lightning protection . 10
5.3 Gas tightness . 10
5.4 Temperature classes. 11
6 Structural design . 11
6.1 Altimetry and geometry . 11
6.2 Actions . 13
6.2.1 General. 13
6.2.2 Permanent action . 13
6.2.3 Deflection of bearing system . 13
6.2.4 Wind suction . 13
6.2.5 Thermal actions . 13
6.2.6 Internal pressure at design conditions . 15
6.3 Verification . 15
6.3.1 General. 15
6.3.2 Mechanical characteristics . 15
7 Fabrication . 16
7.1 Tolerances . 16
7.2 Surface protection against chemical attack . 16
Bibliography . 17

European foreword
This document (EN 13084-6:2025) has been prepared by Technical Committee CEN/TC 297 “Free-
standing industrial chimneys”, the secretariat of which is held by AFNOR.
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 May 2026 and conflicting national standards shall be
withdrawn at the latest by May 2026.
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 13084-6:2015.
EN 13084-6:2015:
— reformulation of the scope;
— additions to the terms and definitions;
— revision and addition of 5.2 “Construction details”;
— revision and addition of Clause 6 “Structural design”;
— deletion of Annex A which was transferred to EN 13084-1:2025.
The EN 13084 series consists of the following parts:
— EN 13084-1, Free-standing chimneys — Part 1: General requirements
— EN 13084-2, Free-standing chimneys — Part 2: Concrete chimneys
— EN 13084-4, Free-standing chimneys — Part 4: Brick liners — Design and execution
— EN 13084-5, Free-standing chimneys — Part 5: Material for brick liners — Product specifications
— EN 13084-6, Free-standing chimneys — Part 6: Steel liners — Design and execution
— EN 13084-7, Free-standing chimneys — Part 7: Product specifications of cylindrical steel fabrications
for use in single wall steel chimneys and steel liners
— EN 13084-8, Free-standing chimneys — Part 8: Design and execution of mast construction with
satellite components
— EN 13084-9, Free-standing chimneys — Part 9: Lifetime management — Monitoring, inspection,
maintenance, remedial and reporting; operations and actions required
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
1 Scope
This document deals with special requirements and performance criteria for the design of lining
systems made of steel for free standing chimneys. It specifies the requirements for cylindrical steel
liners as stated in EN 13084-1.
This document covers the design of the following three basic types of liners located in a load bearing
structure:
a) base supported liner;
b) sectional liner;
c) top hung liner.
Additionally, this document applies to single wall chimneys regarding their contact with flue gases.
For simplicity, these various designs will generally be referred to herein as “liners”.
The mechanical requirement is not part of this document; for information, see EN 1993-3.
NOTE Liners built from prefabricated metal chimneys in accordance with EN 1856-1:2009
and EN 1856-2:2009 are installed as base supported liners with additional supports and guides as defined in 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.
EN 1090-2, Execution of steel structures and aluminium structures — Part 2: Technical requirements for
steel structures
EN 1856-1:2009, Chimneys — Requirements for metal chimneys — Part 1: System chimney products
EN 1856-2:2009, Chimneys — Requirements for metal chimneys — Part 2: Metal flue liners and
connecting flue pipes
EN 1859:2009+A1:2013, Chimneys — Metal chimneys — Test methods
EN 1991-1-4, Eurocode 1: Actions on structures — Part 1-4: General actions — Wind actions
EN 1993-1-6, Eurocode 3 — Design of steel structures — Part 1-6: Strength and stability of shell
structures
EN 1993-3, Eurocode 3 — Design of steel structures — Part 3: Towers, masts and chimneys
EN 10028 (all parts), Flat products made of steels for pressure purposes
EN 10088 (all parts), Stainless steels
EN 10095, Heat resisting steels and nickel alloys
EN 13084-1:2025, Free-standing chimneys — Part 1: General requirements
EN 13084-7:2012, Free-standing chimneys — Part 7: Product specifications of cylindrical steel
fabrications for use in single wall steel chimneys and steel liners

Under preparation. Current stage: FprEN 1993-3:2025.
EN 62305-1, Protection against lightning — Part 1: General principles
EN ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections (ISO 5817)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13084-1 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
base supported liner
liner which is supported vertically only at the liner base
3.2
duct entry
part of the liner which introduces the flue gases into the liner
3.3
junction flange
flange that connects two elements of a flue liner and/or windshield
3.4
prefabricated metal chimney
liner in accordance with EN 1856-1:2009 and EN 1856-2:2009
3.5
sectional liner
liner with at least two independent vertically supported sections
3.6
stiffening ring
ring stiffener
usually circumferential, welded ring at regular intervals to reduce the length of the buckling area or to
locally reinforce the shaft in highly stressed areas
3.7
system chimney
chimney that is installed using a combination of compatible chimney components, obtained or specified
as a kit from one manufacturing source with product responsibility for the whole chimney
[SOURCE: EN 1443:2019, 3.19]
3.8
top hung liner
liner which is supported vertically at or near the top
3.9
turning vanes
plates to lead the flue gas in another direction
4 Material
4.1 General
Materials used shall be based upon chemical, thermal and mechanical effects and shall fulfil the
requirements of EN 13084-1 and EN 1993-3.
Materials used shall not have a negative influence upon each other.
If prefabricated metal chimneys are used, the additional requirements of this document shall be
fulfilled.
4.2 Steels
Steels commonly used are given in EN 13084-7.
Other steels shall meet the requirements of EN 1993-3 and EN 13084-1.
5 General design and construction requirements
5.1 General
Gas flow calculations to determine the diameter of the liner are covered by EN 13084-1. Material
expansion due to temperature shall be taken into account. For steel liners and prefabricated metal
chimneys, the class of chemical attack shall be in accordance with EN 13084-1.
The liner shall be designed in such a way that it is able to ta
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