EN ISO 8494:2013
(Main)Metallic materials - Tube - Flanging test (ISO 8494:2013)
Metallic materials - Tube - Flanging test (ISO 8494:2013)
ISO 8494:2013 specifies a method for determining the ability of metallic tubes of circular cross-section to undergo plastic deformation during flange formation.
ISO 8494:2013 is intended for tubes having an outside diameter no greater than 150 mm and a wall thickness no greater than 10 mm, although the range of diameters or wall thickness for which ISO 8494:2013 is applicable may be more exactly specified in the relevant product standard.
Metallische Werkstoffe - Rohr - Bördelversuch (ISO 8494:2013)
Diese Internationale Norm legt ein Verfahren zur Bestimmung der Eignung metallischer Rohre mit kreisförmigem Querschnitt fest, während der Flanschbildung einer plastischen Verformung unterzogen zu werden.
Diese Internationale Norm ist für Rohre mit einem Außendurchmesser von höchstens 150 mm und einer Wanddicke von höchstens 10 mm vorgesehen, wenngleich der Bereich der Durchmesser oder der Wanddicken, für den diese Internationale Norm gilt, genauer in der entsprechenden Produktnorm festgelegt sein kann.
Matériaux métalliques - Tubes - Essai de rabattement de collerette (ISO 8494:2013)
L'ISO 8494:2013 spécifie une méthode de détermination de l'aptitude à la déformation plastique de tubes métalliques de section circulaire par rabattement de collerette.
La présente Norme internationale est destinée aux tubes de diamètre extérieur au plus égal à 150 mm et d'épaisseur de paroi ne dépassant pas 10 mm, bien que la gamme de diamètres ou d'épaisseurs à laquelle la présente Norme internationale s'applique, puisse être spécifiée de façon plus précise dans la norme de produit concernée.
Kovinski materiali - Cev - Preskus robljenja (ISO 8494:2013)
General Information
- Status
- Published
- Publication Date
- 19-Nov-2013
- Withdrawal Date
- 19-May-2014
- Technical Committee
- ECISS/TC 110 - Steel tubes, and iron and steel fittings
- Drafting Committee
- ECISS/TC 110 - Steel tubes, and iron and steel fittings
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 20-Nov-2013
- Completion Date
- 20-Nov-2013
Relations
- Effective Date
- 27-Nov-2013
- Effective Date
- 28-Jan-2026
- Consolidated By
ISO 8494:2013 - Metallic materials — Tube — Flanging test - Effective Date
- 12-Feb-2026
Overview
EN ISO 8494:2013 – Metallic materials – Tube – Flanging test is a European and International Standard developed by CEN and ISO for assessing the ability of metallic tubes with circular cross-sections to undergo plastic deformation during flange formation. This standard specifies a widely recognized and reproducible procedure for the flanging test, making it a key reference for manufacturers, quality control labs, and mechanical designers working with metallic tubes. The test method is mainly applicable to metallic tubes with an outside diameter up to 150 mm and a wall thickness no greater than 10 mm, though product standards may further clarify the applicable dimensions.
Keywords: EN ISO 8494, flanging test, metallic tube, plastic deformation, tube testing, mechanical testing standards, quality assurance, CEN standards
Key Topics
Scope and Applicability
- Applies to metallic tubes (circular cross-section) up to specified diameter and wall thickness.
- Supports product standards that may define more precise applicability ranges.
Test Principle
- Involves forming a flange on the end of a tube specimen perpendicular to its axis.
- The test evaluates the tube’s ductility and capacity for plastic deformation without cracking or failure.
Requirements and Procedure
- Describes equipment such as variable-speed presses or universal testing machines.
- Highlights the forming process using a conical mandrel and flanging tool, with clear specification for mandrel angle and tool diameter.
- Specifies conditions for ambient temperature testing, specimen dimensions, and edge preparation.
Result Interpretation and Reporting
- Test is considered passed if no cracks are visible to the naked eye; slight edge cracking is permissible.
- Test reports must reference ISO 8494, specimen identification, dimensions, maximum expanded diameter, and results.
Applications
The EN ISO 8494:2013 flanging test is an essential procedure in:
- Tube Manufacturing: Ensuring tubes can withstand flanging operations without failure, critical for products requiring end forming in fields like automotive, aerospace, HVAC, and construction.
- Product Development: Supporting materials selection and engineering design by quantifying ductility and workability of tube materials.
- Quality Control and Inspection: Detecting batch or process variations that impact forming performance, helping minimize in-service failures.
- Supplier Compliance: Demonstrating conformity with contractual and regulatory specifications for metallic tubes, especially where specific forming capabilities are required.
Tubes passing the flanging test are more likely to perform reliably during downstream forming, assembly, or installation, bolstering confidence in structural integrity and component lifespan.
Related Standards
Organizations involved with metallic tubes and mechanical testing often reference EN ISO 8494 alongside:
- ISO 8492 – Bending test for metallic tubes
- ISO 8493 – Drift expanding test for metallic tubes
- EN ISO 6892 – Tensile testing of metallic materials
- ISO 7438 – Bend test for metallic materials
Using this family of standards ensures a comprehensive approach to mechanical testing, supporting consistent material performance, quality assurance, and international market access.
EN ISO 8494:2013 standardizes the flanging test for metallic tubes, enabling manufacturers, laboratories, and purchasers to assess tube formability efficiently and consistently, ensuring product quality and regulatory compliance in demanding industrial applications.
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Frequently Asked Questions
EN ISO 8494:2013 is a standard published by the European Committee for Standardization (CEN). Its full title is "Metallic materials - Tube - Flanging test (ISO 8494:2013)". This standard covers: ISO 8494:2013 specifies a method for determining the ability of metallic tubes of circular cross-section to undergo plastic deformation during flange formation. ISO 8494:2013 is intended for tubes having an outside diameter no greater than 150 mm and a wall thickness no greater than 10 mm, although the range of diameters or wall thickness for which ISO 8494:2013 is applicable may be more exactly specified in the relevant product standard.
ISO 8494:2013 specifies a method for determining the ability of metallic tubes of circular cross-section to undergo plastic deformation during flange formation. ISO 8494:2013 is intended for tubes having an outside diameter no greater than 150 mm and a wall thickness no greater than 10 mm, although the range of diameters or wall thickness for which ISO 8494:2013 is applicable may be more exactly specified in the relevant product standard.
EN ISO 8494:2013 is classified under the following ICS (International Classification for Standards) categories: 77.040.10 - Mechanical testing of metals. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 8494:2013 has the following relationships with other standards: It is inter standard links to EN ISO 8494:2004, EN 1057:2006+A1:2010, ISO 8494:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 8494:2013 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2014
1DGRPHãþD
SIST EN ISO 8494:2004
Kovinski materiali - Cev - Preskus robljenja (ISO 8494:2013)
Metallic materials - Tube - Flanging test (ISO 8494:2013)
Metallische Werkstoffe - Rohr - Bördelversuch (ISO 8494:2013)
Matériaux métalliques - Tubes - Essai de rabattement de collerette (ISO 8494:2013)
Ta slovenski standard je istoveten z: EN ISO 8494:2013
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 8494
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2013
ICS 77.040.10 Supersedes EN ISO 8494:2004
English Version
Metallic materials - Tube - Flanging test (ISO 8494:2013)
Matériaux métalliques - Tubes - Essai de rabattement de Metallische Werkstoffe - Rohr - Bördelversuch (ISO
collerette (ISO 8494:2013) 8494:2013)
This European Standard was approved by CEN on 28 October 2013.
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, 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
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8494:2013 E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 8494:2013) has been prepared by Technical Committee ISO/TC 164 "Mechanical
testing of metals" in collaboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and steel
fittings” the secretariat of which is held by UNI.
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 2014, and conflicting national standards shall be withdrawn at the
latest by May 2014.
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 8494:2004.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 8494:2013 has been approved by CEN as EN ISO 8494:2013 without any modification.
INTERNATIONAL ISO
STANDARD 8494
Third edition
2013-11-15
Metallic materials — Tube —
Flanging test
Matériaux métalliques — Tubes — Essai de rabattement de collerette
Reference number
ISO 8494:2013(E)
©
ISO 2013
ISO 8494:2013(E)
© ISO 2013
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
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ii © ISO 2013 – All rights reserved
ISO 8494:2013(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Symbols, designations and units . 1
3 Principle . 2
4 Testing equipment . 2
5 Test piece . 2
6 Procedure. 2
7 Test report .
...
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