Metallic materials - Tube - Ring-expanding test (ISO 8495:2013)

ISO 8495:2013 specifies a method for a ring-expanding test on tubes, that is used to reveal defects both on the surfaces and within the tube wall by expanding the test piece using a conical mandrel until fracture occurs. It may be also used to assess the ability of tubes to undergo plastic deformation.
The ring-expanding test is applicable to tubes having an outside diameter from 18 mm up to and including 150 mm and a wall thickness from 2 mm up to and including 16 mm.

Metallische Werkstoffe - Rohr - Ringaufdornversuch (ISO 8495:2013)

Diese Internationale Norm legt ein Verfahren für den Ringaufdornversuch an Rohren fest, der angewendet wird, um Fehler sowohl an der Oberfläche als auch innerhalb der Rohrwand zu erkennen, indem der Probekörper unter Verwendung eines konischen Dorns so weit aufgeweitet wird, bis er zu Bruch geht. Die Prüfung darf auch zur Bewertung der plastischen Verformbarkeit von Rohren verwendet werden.
Der Ringaufdornversuch gilt für Rohre, die einen Außendurchmesser von 18 mm bis einschließlich 150 mm und Wanddicken von 2 mm bis einschließlich 16 mm haben.

Matériaux métalliques - Tubes - Essai de dilatation d'anneaux (ISO 8495:2013)

L'ISO 8495:2013 spécifie une méthode d'essai de dilatation d'anneaux sur tubes, qui est utilisée pour révéler des défauts à la fois sur les surfaces et à l'intérieur de la paroi du tube en dilatant l'éprouvette jusqu'à la rupture, au moyen d'un mandrin conique. Elle peut également être utilisée pour évaluer l'aptitude des tubes à la déformation plastique.
L'essai de dilatation d'anneaux s'applique aux tubes de diamètre extérieur compris entre 18 mm et 150 mm inclus, et d'une épaisseur de paroi comprise entre 2 mm et 16 mm inclus.

Kovinski materiali - Cev - Preskus širjenja s trnom (ISO 8495:2013)

Ta mednarodni standard določa metodo za preskus širjenja cevi s trnom, ki se uporablja za odkrivanje hib na površinah cevi in na steni cevi tako, da preskušanca razširi s stožčastim trnom, dokler se ta ne zlomi. Uporablja se lahko tudi za ocenjevanje sposobnosti cevi, da prenese plastično deformacijo. Preskus širjenja cevi s trnom se uporablja za cevi z zunanjim premerom od 18 mm do vključno 150 mm in debelino stene od 2 mm do vključno 16 mm.

General Information

Status
Published
Publication Date
19-Nov-2013
Withdrawal Date
30-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 8495:2014 - Metallic materials - Tube - Ring-expanding test (ISO 8495:2013)

Relations

Replaces
EN ISO 8495:2004 - Metallic materials - Tube - Ring-expanding test (ISO 8495:1998)
Effective Date
27-Nov-2013

Overview

EN ISO 8495:2013 - titled "Metallic materials - Tube - Ring-expanding test (ISO 8495:2013)" - specifies a standardized method for performing the ring‑expanding test on metallic tubes. The test expands a short ring cut from a tube over a conical mandrel until fracture or until a product‑standard‑specified expansion is reached. It is used to reveal surface and internal defects and to assess the tube’s ability to undergo plastic deformation. Applicable tube sizes: outside diameter 18 mm to 150 mm and wall thickness 2 mm to 16 mm.

Key topics and technical requirements

  • Test principle: expand a ring over a conical mandrel until fracture or specified expansion.
  • Test piece: rings cut from tube ends; length between 10 mm and 16 mm; end faces perpendicular to tube axis; edges may be rounded or chamfered.
  • Mandrel: working taper preferably 1:5; surface must be hard, well‑polished and free from scores.
  • Apparatus: variable‑speed press or universal testing machine.
  • Test conditions: ambient testing normally 10 °C to 35 °C; controlled testing at 23 °C ± 5 °C.
  • Procedure limits: mandrel penetration rate ≤ 30 mm/s; rings and mandrel concentric; lubrication optional; rings of same size/material may be stacked.
  • Welded tubes: internal weld flash may be removed before testing.
  • Interpretation: follow relevant product standard; if none specified, a test passes when no cracks are visible without magnification.
  • Test report minimum content: reference to ISO 8495, test piece identification and dimensions, relative expansion, mandrel taper if non‑standard, and test result.

Applications and who uses this standard

  • Quality control and acceptance testing for manufacturers of steel and metallic tubes and pipe fittings.
  • Material and mechanical testing laboratories performing tube inspection for surface and subsurface defects.
  • Product standards writers, procurement and QA engineers specifying mechanical performance and ductility testing requirements.
  • Welding inspectors assessing the effect of welding on tube integrity (weld flash may be removed prior to test).
  • Useful in industries such as oil & gas, automotive, construction and HVAC where tube integrity and formability are critical.

Related standards and context

  • Developed by ISO/TC 164 (Mechanical testing of metals), Subcommittee SC 2 (Ductility testing).
  • EN ISO 8495:2013 supersedes earlier EN ISO 8495 editions (e.g., 2004 version).
  • Refer to relevant product standards for specific acceptance criteria, mandrel dimensions, or alternative tapers.

Keywords: EN ISO 8495:2013, ring‑expanding test, tube testing, metallic materials, conical mandrel, ductility testing, mechanical testing of metals, tube inspection.

Frequently Asked Questions

EN ISO 8495:2013 is a standard published by the European Committee for Standardization (CEN). Its full title is "Metallic materials - Tube - Ring-expanding test (ISO 8495:2013)". This standard covers: ISO 8495:2013 specifies a method for a ring-expanding test on tubes, that is used to reveal defects both on the surfaces and within the tube wall by expanding the test piece using a conical mandrel until fracture occurs. It may be also used to assess the ability of tubes to undergo plastic deformation. The ring-expanding test is applicable to tubes having an outside diameter from 18 mm up to and including 150 mm and a wall thickness from 2 mm up to and including 16 mm.

ISO 8495:2013 specifies a method for a ring-expanding test on tubes, that is used to reveal defects both on the surfaces and within the tube wall by expanding the test piece using a conical mandrel until fracture occurs. It may be also used to assess the ability of tubes to undergo plastic deformation. The ring-expanding test is applicable to tubes having an outside diameter from 18 mm up to and including 150 mm and a wall thickness from 2 mm up to and including 16 mm.

EN ISO 8495:2013 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 8495:2013 has the following relationships with other standards: It is inter standard links to EN ISO 8495:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase EN ISO 8495:2013 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2014
1DGRPHãþD
SIST EN ISO 8495:2004
Kovinski materiali - Cev - Preskus širjenja s trnom (ISO 8495:2013)
Metallic materials - Tube - Ring-expanding test (ISO 8495:2013)
Metallische Werkstoffe - Rohr - Ringaufdornversuch (ISO 8495:2013)
Matériaux métalliques - Tubes - Essai de dilatation d'anneaux (ISO 8495:2013)
Ta slovenski standard je istoveten z: EN ISO 8495:2013
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 8495
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2013
ICS 77.040.10 Supersedes EN ISO 8495:2004
English Version
Metallic materials - Tube - Ring-expanding test (ISO 8495:2013)
Matériaux métalliques - Tubes - Essai de dilatation Metallische Werkstoffe - Rohr - Ringaufdornversuch (ISO
d'anneaux (ISO 8495:2013) 8495:2013)
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 8495:2013 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 8495:2013) 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 8495:2004.
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 8495:2013 has been approved by CEN as EN ISO 8495:2013 without any modification.
INTERNATIONAL ISO
STANDARD 8495
Third edition
2013-11-15
Metallic materials — Tube — Ring-
expanding test
Matériaux métalliques — Tubes — Essai de dilatation d’anneaux
Reference number
ISO 8495:2013(E)
©
ISO 2013
ISO 8495:2013(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.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 8495:2013(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Symbols, designations and units . 1
3 Principle . 1
4 Apparatus . 2
5 Test piece .
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...