oSIST prEN 13261:2023

Railway applications - Wheelsets and bogies - Axles - Product requirements

This document specifies the characteristics of axles for all heavy rail track gauges.
This document applies to heavy rail vehicles and applies, in principle, to other vehicles such as urban rail vehicles.
It defines characteristics of forged or rolled solid and hollow axles, made from vacuum-degassed steel grade EA1N[1]), EA1T1) and EA4T1). For hollow axles, this standard applies only to those that are manufactured by machining of a hole in a forged or rolled solid axle.
The requirements defined in this standard are applicable for cylindrical seats. Most of the requirements are also applicable for axles with conical seats. Specific requirements for conical seats (e.g. geometrical dimensions of the seats…) are defined in the technical specification.
Some characteristics are given as a function of a category 1 or of a category 2.
This document is applicable to axles that are designed in accordance with the requirements of EN 13103-1:2018.
This document also permits variations of the material characteristics linked to alternative manufacturing processes (e.g. cold rolling, shot blasting, thermal spraying, steel cleanliness, reduction ratio, improved material properties from melting and heat treatment process, etc.).
1) N for a normalized metallurgical condition
T for a quenched and tempered metallurgical condition

Bahnanwendungen - Radsätze und Drehgestelle - Radsatzwellen - Produktanforderungen

Dieses Dokument legt die Eigenschaften von Radsatzwellen für alle Vollbahnspurweiten fest.
Dieses Dokument ist für Vollbahnfahrzeuge und grundsätzlich für andere Fahrzeuge wie städtische Schienenbahnen anwendbar.
Es legt Eigenschaften für geschmiedete oder gewalzte massive und längsgebohrte Radsatzwellen aus den vakuumentgasten Stahlsorten EA1N, EA1T und EA4T fest. Für längsgebohrte Radsatzwellen gilt diese Norm nur, wenn diese durch mechanische Bearbeitung der Bohrung in einer geschmiedeten oder gewalzten massiven Radsatzwelle hergestellt werden.
Die in dieser Norm festgelegten Anforderungen sind für zylindrische Radsitze anwendbar. Die meisten Anforderungen sind darüber hinaus für Radsatzwellen mit konischen Radsitzen anwendbar. Spezifische Anforderungen an konische Radsitze (z. B. geometrische Abmessungen der Radsitze) werden in der technischen Spezifikation festgelegt.
Einige Eigenschaften sind in Abhängigkeit von Kategorie 1 oder Kategorie 2 angegeben.
Dieses Dokument ist für Radsatzwellen, die in Übereinstimmung mit den Anforderungen nach CEN/EN 13103-1:2017+A1:2022 entworfen wurden, anwendbar.
Dieses Dokument erlaubt außerdem Abweichungen der Materialeigenschaften in Verbindung mit alternativen Fertigungsprozessen (z. B. Kaltwalzen, Kugelstrahlen, thermisches Spritzen, Stahlreinheit, Schmiedeverformungsgrad, Verbesserung der Werkstoffeigenschaften durch das Schmelzverfahren und den Wärmebehandlungsprozess usw.).

Applications ferroviaires - Essieux montés et bogies - Essieux-axes - Prescription pour le produit

Le présent document spécifie les caractéristiques des essieux-axes pour tous les écartements de voie des véhicules ferroviaires lourds.
Le présent document s'applique aux véhicules ferroviaires lourds et s'applique, en principe, à d'autres véhicules tels que les véhicules ferroviaires urbains.
Il spécifie les caractéristiques des essieux-axes pleins et creux, forgés ou laminés, en acier dégazé sous vide, de nuance EA1N, EA1T et EA4T. Pour les essieux-axes creux, le présent document s'applique seulement à ceux qui sont fabriqués par usinage d'un trou dans un essieu-axe plein forgé ou laminé.
Les exigences spécifiées dans le présent document sont applicables aux portées de calage cylindriques. La plupart des exigences sont également applicables aux essieux-axes à portées de calage coniques. Des exigences spécifiques pour les portées coniques (par exemple, dimensions géométriques des portées de calage, etc.) sont définies dans la spécification technique.
Quelques caractéristiques sont données en fonction d'une catégorie 1 ou d'une catégorie 2.
Le présent document est applicable aux essieux-axes qui sont conçus conformément aux exigences de l'EN 13103-1:2017+A1:2022.
Le présent document admet également des variations des caractéristiques du matériau en relation avec des procédés alternatifs de fabrication (par exemple, galetage, grenaillage, dépôt de métal par projection thermique, propreté de l'acier, taux de corroyage, propriétés améliorées du matériau par un procédé de fusion et de traitement thermique, etc.).

Železniške naprave - Kolesne dvojice in podstavni vozički - Osi - Zahtevane lastnosti proizvoda

General Information

• Status: Not Published
• Public Enquiry End Date: 25-Apr-2023
• ICS: 45.040 - Materials and components for railway engineering
• Technical Committee: IŽNP - Reilway applications
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 22-Feb-2023
• Due Date: 12-Jul-2023
• Completion Date: 17-Apr-2023
• Directive: 2016/797/EU - Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May 2016 on the interoperability of the rail system within the European Union (Text with EEA relevance)
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Ref Project: FprEN 13261 - Railway applications - Wheelsets and bogies - Axles - Product requirements

Relations

• Replaces: SIST EN 13261:2020 - Railway applications - Wheelsets and bogies - Axles - Product requirements
• Effective Date: 01-Jun-2022
• Revised: SIST EN 13261:2020 - Railway applications - Wheelsets and bogies - Axles - Product requirements
• Effective Date: 19-Jan-2023
• Revises: SIST EN 13261:2020 - Railway applications - Wheelsets and bogies - Axles - Product requirements
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2023
Nadomešča:
SIST EN 13261:2020
Železniške naprave - Kolesne dvojice in podstavni vozički - Osi - Zahtevane
lastnosti proizvoda
Railway applications - Wheelsets and bogies - Axles - Product requirements
Bahnanwendungen - Radsätze und Drehgestelle - Radsatzwellen -
Produktanforderungen
Applications ferroviaires - Essieux montés et bogies - Essieux-axes - Prescription pour le
produit
Ta slovenski standard je istoveten z: prEN 13261
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 13261
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2023
ICS Will supersede EN 13261:2020
English Version
Railway applications - Wheelsets and bogies - Axles -
Product requirements
Applications ferroviaires - Essieux montés et bogies - Bahnanwendungen - Radsätze und Drehgestelle -
Essieux-axes - Prescription pour le produit Radsatzwellen - Produktanforderungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 256.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13261:2023 E
worldwide for CEN national Members.

prEN 13261:2023 (E)
Contents Page
European foreword . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Product definition . 9
4.1 Chemical composition . 9
4.1.1 Values to be achieved . 9
4.1.2 Sampling methods . 9
4.1.3 Chemical analysis . 9
4.2 Mechanical characteristics . 10
4.2.1 Characteristics from the tensile test . 10
4.2.2 Impact test characteristics . 12
4.2.3 Fatigue characteristics . 14
4.3 Microstructure characteristics. 16
4.3.1 Values to be achieved . 16
4.3.2 Position of the test piece. 16
4.3.3 Test method . 16
4.4 Material cleanliness . 16
4.4.1 Micrographic cleanliness . 16
4.4.2 Internal integrity . 17
4.5 Permeability to ultrasound . 18
4.5.1 General . 18
4.5.2 Level to be achieved . 18
4.5.3 Test piece . 18
4.5.4 Test method . 18
4.6 Residual stresses . 19
4.6.1 General . 19
4.6.2 Values to be achieved . 19
4.6.3 Test piece and position of measurement points . 19
4.6.4 Measurement method . 19
4.7 Surface characteristics . 20
4.7.1 Surface finish . 20
4.7.2 Surface integrity . 22
4.8 Geometrical and dimensional tolerances. 23
4.9 Protection against corrosion and against mechanical aggression . 28
4.9.1 Final protection . 28
4.9.2 Temporary protection . 32
4.10 Marking . 32
5 Alternative manufacturing process . 33
6 Product qualification . 33
7 Conditions of supply . 33
Annex A (informative) Material sampling from axle journal extension . 34
prEN 13261:2023 (E)
A.1 General . 34
A.2 Sampling method . 34
A.2.1 Extension of the same diameter as the journal diameter . 34
A.2.2 Extension with a larger diameter than the journal diameter . 34
A.3 Values to be achieved . 34
Annex B (informative) Drawings of test pieces . 36
Annex C (normative) Standard sample block for measurement of permeability to ultrasound . 40
C.1 Sample block . 40
C.2 Tolerances of the standard sample block . 42
C.3 Steel grade of the standard sample block . 42
Annex D (informative) Position of the measurement points for the permeability to ultrasound 43
Annex E (informative) Residual stress measurement with strain gauges with saw cutting . 44
Annex F (informative) Method for blasting after machining . 45
F.1 Blasting principle. 45
F.2 Requirements . 45
F.2.1 Blasting media . 45
F.2.2 Hardness . 45
F.2.3 Roughness . 45
F.2.4 Coverage rate . 45
F.2.5 Fatigue limit . 45
F.3 Parameters . 46
F.4 Blasting qualification process . 46
Annex G (normative) Method to assess resistance to impact of the coating . 47
G.1 Principle . 47
G.2 Test piece . 47
G.3 Apparatus . 47
G.4 Procedure . 47
G.5 Expression of results . 47
Annex H (normative) Method to assess resistance to gritting of the coating . 48
H.1 Principle . 48
H.2 Test piece . 48
H.3 Apparatus . 48
H.4 Procedure .
...