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
ICS
77.040.10 - Mechanical testing of metals
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
Ref Project
SIST EN ISO 8494:2014 - Metallic materials - Tube - Flanging test (ISO 8494:2013)

Relations

Replaces
EN ISO 8494:2004 - Metallic materials - Tube - Flanging test (ISO 8494:1998)
Effective Date
27-Nov-2013

Overview

EN ISO 8494:2013, titled "Metallic materials - Tube - Flanging test", is an international standard developed by CEN and ISO that specifies a precise method for evaluating the ability of metallic tubes with circular cross-sections to undergo plastic deformation during flange formation. This standard is applicable primarily to tubes with an outside diameter up to 150 mm and wall thickness not exceeding 10 mm, though exact size ranges may be defined by relevant product standards.

The flanging test described in ISO 8494:2013 is crucial for quality assurance in manufacturing and mechanical testing of metallic tubes, ensuring material ductility, formability, and integrity under plastic deformation conditions.

Key Topics

  • Purpose: To determine the capability of metallic tubes to plastically deform when forming a flange, a critical process in tube fitting and assembly.
  • Scope: Applies to metallic tubes with circular cross sections, with size constraints typically up to 150 mm diameter and 10 mm wall thickness.
  • Test Principle: A flange is formed by plastically deforming the tube end perpendicular to the tube axis until reaching a specified flange diameter. The ability of the tube material to undergo this deformation without cracking is assessed.
  • Test Equipment:
    • Variable-speed press or universal testing machine.
    • Forming tools including a conical mandrel, flanging tool, and supporting die, all made from polished, hardened materials.
  • Test Piece Preparation: The test piece length is approximately 1.5 times its original outside diameter; ends are prepared perpendicular to tube axis and may be chamfered or rounded.
  • Procedure Highlights:
    • Conducted generally at ambient temperature (10 °C to 35 °C), preferably 23 °C ± 5 °C under controlled conditions.
    • The conical mandrel preforms the tube end, followed by flange formation with the flanging tool.
    • The mandrel must not rotate relative to the tube during testing.
    • Testing speed capped at 50 mm/min if needed for dispute resolution.
  • Results Interpretation:
    • Absence of visible cracks indicates passing the test.
    • Minor edge cracking is acceptable.
    • Requirements for flange diameter and tool radius are product-standard specific.
  • Test Reporting: Must include references to ISO 8494, sample identification and dimensions, flange dimensions or relative expansions, tool radius, and pass/fail status.

Applications

  • Quality Control in Tube Manufacturing: Ensures metallic tubes meet minimum ductility and deformation standards necessary for forming flanges.
  • Mechanical Testing Labs: Standardized test method for evaluating material performance under plastic deformation during flange formation.
  • Tube and Pipe Product Standards Compliance: Supports verification against product-specific mechanical and dimensional requirements.
  • Metal Forming Industry: Assists in process validation for tube flanging operations used in automotive, aerospace, construction, and plumbing industries.
  • Materials Engineering Research: Provides systematic data on deformation behavior of metallic tube materials under flange-forming loads.

Related Standards

  • ISO/TC 164: Mechanical testing of metals – the technical committee under which ISO 8494 falls.
  • Steel Tube Product Standards: Specific standards that define dimension and performance criteria, possibly extending or narrowing ISO 8494 applicability.
  • Other Metal Forming Test Methods: Including tensile, bend, and impact tests to evaluate complementary mechanical properties.
  • EN ISO 8494:2004: The superseded edition replaced by this 2013 third edition.

Keywords: flanging test, metallic tubes, plastic deformation, tube ductility, mechanical testing of metals, ISO 8494, tube flanging standard, flange formation, tube testing equipment, metallic tube quality control, CEN standards.

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. 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
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
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Published in Switzerland
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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