EN 15085-6:2022

SLOVENSKI STANDARD
01-december-2022
Železniške naprave - Varjenje železniških vozil in komponent - 6. del: Zahteve za
vzdrževalno varjenje
Railway applications - Welding of railway vehicles and components - Part 6:
Maintenance welding requirements
Bahnanwendungen - Schweißen von Schienenfahrzeugen und -fahrzeugteilen - Teil 6:
Anforderungen für die schweißtechnische Instandsetzung
Applications ferroviaires - Soudage des véhicules et des composants ferroviaires - Partie
6 : Exigences pour le soudage en maintenance
Ta slovenski standard je istoveten z: EN 15085-6:2022
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15085-6
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2022
EUROPÄISCHE NORM
ICS 25.160.10; 45.060.01
English Version
Railway applications - Welding of railway vehicles and
components - Part 6: Maintenance welding requirements
Applications ferroviaires - Soudage des véhicules Bahnanwendungen - Schweißen von
ferroviaires et des pièces - Partie 6 : Exigences de Schienenfahrzeugen und -fahrzeugteilen - Teil 6:
soudage en maintenance Anforderungen für die schweißtechnische
Instandsetzung
This European Standard was approved by CEN on 17 January 2022.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15085-6:2022 E
worldwide for CEN national Members.

Contents
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Quality requirements for welding during maintenance . 7
4.1 General . 7
4.2 Welding coordination . 7
4.3 Conditions for welding . 7
4.3.1 General . 7
4.3.2 Welding outside a workshop . 7
4.3.3 Welding to enable running for transfer purposes . 7
4.4 Restrictions or prohibitions of welding . 8
5 Design requirements for components manufactured prior to the implementation of
EN 15085-3:- or where no manufacturing drawings exist . 8
5.1 Determination of the applicable weld performance classes . 8
5.2 Applicable testing requirements . 9
6 Preparation before maintenance welding . 10
6.1 Welding plans . 10
6.2 Additional production tests on welded assemblies . 10
7 Additional Requirements . 10
7.1 General . 10
7.2 Weld performance class CP A . 10
7.2.1 General . 10
7.2.2 Welding procedure specification . 10
7.2.3 Additional testing . 11
7.2.4 Inspection and testing of welded joint . 11
7.3 Parent metals . 11
7.3.1 Weldability of parent material - determination of material type/grade . 11
7.3.2 Steel with ReH > 690 MPa, cold rolled steel and aluminium . 11
7.3.3 Welding in cold formed areas . 11
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2016/797/EU aimed to be covered . 12
Bibliography . 14

European foreword
This document (EN 15085-6:2022) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, 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 April 2023, and conflicting national standards shall be
withdrawn at the latest by April 2023.
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 series of European Standards EN 15085 “Railway applications — Welding of railway vehicles and
components” consists of the following parts:
— Part 1: General;
— Part 2: Requirements for welding manufacturers;
— Part 3: Design requirements;
— Part 4: Production requirements;
— Part 5: Inspection, testing and documentation;
— Part 6: Maintenance welding requirements.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
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 organisations 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.
Introduction
Welding is a special process in the manufacture of railway vehicles and their parts. The required
provisions for this process are laid down in the standards series EN ISO 3834. The basis of these
provisions is the basic technical welding standards with respect to the special requirements for the
construction of railway vehicles.
This series of standards applies to welding of metallic materials in the manufacture and maintenance of
railway vehicles and their parts.
It describes the control for the welding process for railway vehicles and their components for new
manufacture and maintenance.
With respect to the railway environment, this series of standards defines the quality requirements for the
welding manufacturer to undertake new building and repair work.
Components, parts and subassemblies are assigned a classification level, based on their safety relevance.
According to these levels, qualifications for welding personnel of the manufacturer are specified.
This series provides an essential link between the weld performance class defined during design, the
quality of the weld, and the demonstration of the required quality by inspection.
This series of standards does not deal with product qualification.
NOTE This series standard can also be used by internal and external parties, including certification bodies, to
assess the organization's ability to meet customer, regulatory and the organization's own requirements.
1 Scope
This document defines the quality requirements as well as the design and production requirements for
welding to be followed by manufacturers during maintenance or maintenance activities on railway
vehicles and components.
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 13306:2017, Maintenance — Maintenance terminology
EN 15085-1: - , Railway applications — Welding of railway vehicles and components — Part 1: General
EN 15085-2:2020, Railway applications — Welding of railway vehicles and components — Part 2:
Requirements for welding manufacturer
EN 15085-3:- , Railway applications — Welding of railway vehicles and components —Part 3: Design
requirements
EN 15085-4:- , Railway applications — Welding of railway vehicles and components — Part 4: Production
requirements
EN 15085-5:- , Railway applications — Welding of railway vehicles and components — Part 5: Inspection,
testing and documentation
EN 17018:2019, Railway applications — Rolling stock maintenance — Terms and definitions
EN ISO 3834-1:2021, Quality requirements for fusion welding of metallic materials — Part 1: Criteria for
the selection of the appropriate level of quality requirements (ISO 3834-1:2021)
EN ISO 3834-2:2021, Quality requirements for fusion welding of metallic materials — Part 2:
Comprehensive quality requirements (ISO 3834-2:2021)
EN ISO 3834-3:2021, Quality requirements for fusion welding of metallic materials — Part 3: Standard
quality requirements (ISO 3834-3:2021)
EN ISO 3834-4:2021, Quality requirements for fusion welding of metallic materials — Part 4: Elementary
quality requirements (ISO 3834-4:2021)
EN ISO 3834-5:2021, Quality requirements for fusion welding of metallic materials — Part 5: Documents
with which it is necessary to conform to claim conformity to the quality requirements of ISO 3834-2, ISO
3834-3 or ISO 3834-4 (ISO 3834-5:2021)
EN ISO 15613:2004, Specification and qualification of welding procedures for metallic materials —
Qualification based on pre-production welding test (ISO 15613:2004)

Under preparation. Stage at time of publication: prEN 15085-1:2021.
Under preparation. Stage at time of publication: FprEN 15085-3:2022.
Under preparation. Stage at time of publication: prEN 15085-4:2020.
Under preparation. Stage at time of publication: prEN 15085-5:2020.
EN ISO 15614-1:2017, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 1: Arc and gas welding of steels and arc welding of nicke
...