Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal in fusion welded joints (ISO 5178:2019)

This document specifies the sizes of test specimens and the test procedure for carrying out longitudinal tensile tests on cylindrical test specimens in order to determine the mechanical properties of weld metal in a fusion welded joint.
This document applies to metallic materials in all forms of product with joints made by any fusion welding process, having joint sizes that are sufficient to obtain cylindrical test specimens with dimensions in accordance with ISO 6892‑1.
Unless specified otherwise for specific points in this document, the general principles of ISO 6892‑1 apply.

Zerstörende Prüfung von Schweißverbindungen an metallischen Werkstoffen - Längszugversuch an Schweißgut in Schmelzschweißverbindungen (ISO 5178:2019)

Essais destructifs des soudures sur matériaux métalliques - Essai de traction longitudinale du métal fondu des assemblages soudés par fusion (ISO 5178:2019)

Le présent document spécifie les dimensions des éprouvettes et le mode opératoire de l'essai de traction longitudinale effectué sur des éprouvettes cylindriques dans le but de déterminer les propriétés mécaniques du métal fondu dans un assemblage soudé par fusion.
Le présent document s'applique aux assemblages soudés à partir de matériaux métalliques sous toute forme de livraison, réalisés par tout procédé de soudage par fusion, dont les dimensions d'assemblage sont suffisantes pour obtenir des éprouvettes cylindriques conformes à l'ISO 6892-1.
Sauf spécifications contraires concernant des points particuliers dans le présent document, les principes généraux de l'ISO 6892-1 s'appliquent.

Porušitveni preskusi zvarov na kovinskih materialih - Vzdolžni natezni preskus vara na talilnih zvarnih spojih (ISO 5178:2019)

Ta dokument določa velikosti preskusnih vzorcev in postopek za izvajanje vzdolžnih nateznih preskusov na valjastih preskusnih vzorcih za določanje mehanskih lastnosti vara na talilnih zvarnih spojih. Dokument se uporablja za kovinske materiale v vseh oblikah izdelka s spoji, izdelanimi po katerem koli postopku za talilne varne spoje, pri čemer velikost spojev zadostuje za pridobitev valjastih preskusnih primerkov z merami v skladu s standardom ISO 6892-1.
Če pri posameznih točkah v tem dokumentu ni navedeno drugače, se uporabljajo splošna načela standarda ISO 6892-1.

General Information

Status
Published
Publication Date
26-Feb-2019
Withdrawal Date
30-Aug-2019
ICS
25.160.40 - Welded joints and welds
Technical Committee
CEN/TC 121 - Welding
Drafting Committee
CEN/TC 121 - Welding
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
27-Feb-2019
Completion Date
27-Feb-2019
Ref Project
SIST EN ISO 5178:2019 - Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal in fusion welded joints (ISO 5178:2019)

Relations

Replaces
EN ISO 5178:2011 - Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal in fusion welded joints (ISO 5178:2001)
Effective Date
06-Mar-2019

Overview

EN ISO 5178:2019 specifies the standardized method for conducting destructive longitudinal tensile tests on weld metal in fusion welded joints of metallic materials. It defines the required test specimen sizes and detailed procedures to accurately determine the mechanical properties of the weld metal. This standard applies to any metallic material product with joints created by fusion welding processes, provided the joint dimensions permit extraction of cylindrical specimens according to ISO 6892-1.

Developed under the auspices of the European Committee for Standardization (CEN) and aligned with ISO guidelines, EN ISO 5178:2019 ensures reliable, repeatable tensile testing to assess weld integrity under tension. The test method involves applying an increasing tensile load to cylindrical specimens extracted longitudinally from the weld metal until rupture occurs.

Key Topics

  • Scope and Applicability
    Covers all forms of metallic materials welded by fusion welding processes. Applicable where joints are large enough to allow specimens as per ISO 6892-1 dimensions.

  • Test Specimen Extraction
    Cylindrical specimens are precisely removed from the weld metal, ensuring that the parallel length is composed solely of weld metal. Appropriate marking and macroetching aid exact specimen positioning and traceability.

  • Test Conditions
    Tests are carried out at room temperature ranging between 10 °C and 35 °C, typically at 23 °C ± 5 °C for controlled conditions.

  • Specimen Dimensions
    Specimens must have a circular cross-section, typically with a 10 mm diameter. The diameter may be reduced to no less than 4 mm if necessary, maintaining proper proportions defined in ISO 6892-1.

  • Machining and Handling
    Extraction methods must not alter specimen properties. Shearing is prohibited beyond 8 mm thickness in steel, and thermal cutting is restricted to avoid changing material areas critical to testing. Other metallic materials require machining methods such as sawing and turning only.

  • Heat Treatment Restrictions
    No heat treatment or ageing shall be applied to the welds or specimens unless specified in application-specific standards. Recording any treatments or natural ageing processes is mandatory in test reports.

  • Test Reporting
    The standard prescribes comprehensive documentation of test results, specimen location, any heat treatment details, and fracture surface examination results.

Applications

EN ISO 5178:2019 is essential for industries that rely heavily on welded metallic joints, including:

  • Construction and Infrastructure
    Ensures the mechanical integrity of welded steel and metal structures vital for safety and durability.

  • Manufacturing and Fabrication
    Quality control for welded components in automotive, aerospace, and heavy machinery sectors.

  • Oil and Gas Pipelines
    Validates the tensile strength and reliability of welded pipeline joints which operate under high stress.

  • Shipbuilding and Marine Engineering
    Confirms weld quality in harsh marine environments where structural failure risks must be minimized.

  • Metal Product Certification
    Helps manufacturers comply with international standards for welded metal parts and supports conformity assessments required by regulatory bodies.

Related Standards

  • ISO 6892-1: Specifies general tensile testing methods at room temperature, referenced extensively for specimen size and testing parameters in EN ISO 5178.

  • EN ISO 5178:2011: The previous edition of this standard, now superseded by the 2019 version, reflecting updated methodologies.

  • ISO/TC 44: The technical committee responsible for standards on welding and allied processes, providing broader context on welding test methods and inspection.

  • Other Destructive Testing Standards in Welding
    Includes standards covering bend tests, impact tests, and fatigue tests to provide a comprehensive quality assurance framework for welded joints.

Adhering to EN ISO 5178:2019 supports consistent evaluation of weld metal tensile properties, enhancing product reliability, safety, and regulatory compliance. Organizations involved in welding inspection and certification will benefit from implementing this internationally recognized testing standard.

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Frequently Asked Questions

EN ISO 5178:2019 is a standard published by the European Committee for Standardization (CEN). Its full title is "Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal in fusion welded joints (ISO 5178:2019)". This standard covers: This document specifies the sizes of test specimens and the test procedure for carrying out longitudinal tensile tests on cylindrical test specimens in order to determine the mechanical properties of weld metal in a fusion welded joint. This document applies to metallic materials in all forms of product with joints made by any fusion welding process, having joint sizes that are sufficient to obtain cylindrical test specimens with dimensions in accordance with ISO 6892‑1. Unless specified otherwise for specific points in this document, the general principles of ISO 6892‑1 apply.

This document specifies the sizes of test specimens and the test procedure for carrying out longitudinal tensile tests on cylindrical test specimens in order to determine the mechanical properties of weld metal in a fusion welded joint. This document applies to metallic materials in all forms of product with joints made by any fusion welding process, having joint sizes that are sufficient to obtain cylindrical test specimens with dimensions in accordance with ISO 6892‑1. Unless specified otherwise for specific points in this document, the general principles of ISO 6892‑1 apply.

EN ISO 5178:2019 is classified under the following ICS (International Classification for Standards) categories: 25.160.40 - Welded joints and welds. The ICS classification helps identify the subject area and facilitates finding related standards.

EN ISO 5178:2019 has the following relationships with other standards: It is inter standard links to EN ISO 5178:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN ISO 5178:2019 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-september-2019
Nadomešča:
SIST EN ISO 5178:2012
Porušitveni preskusi zvarov na kovinskih materialih - Vzdolžni natezni preskus
vara na talilnih zvarnih spojih (ISO 5178:2019)
Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal
in fusion welded joints (ISO 5178:2019)
Zerstörende Prüfung von Schweißverbindungen an metallischen Werkstoffen -
Längszugversuch an Schweißgut in Schmelzschweißverbindungen (ISO 5178:2019)
Essais destructifs des soudures sur matériaux métalliques - Essai de traction
longitudinale du métal fondu des assemblages soudés par fusion (ISO 5178:2019))
Ta slovenski standard je istoveten z: EN ISO 5178:2019
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 5178
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2019
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 5178:2011
English Version
Destructive tests on welds in metallic materials -
Longitudinal tensile test on weld metal in fusion welded
joints (ISO 5178:2019)
Essais destructifs des soudures sur matériaux Zerstörende Prüfung von Schweißverbindungen an
métalliques - Essai de traction longitudinale du métal metallischen Werkstoffen - Längszugversuch an
fondu des assemblages soudés par fusion (ISO Schweißgut in Schmelzschweißverbindungen (ISO
5178:2019) 5178:2019)
This European Standard was approved by CEN on 6 December 2018.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5178:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 5178:2019) has been prepared by Technical Committee ISO/TC 44 "Welding
and allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” 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 August 2019, and conflicting national standards shall
be withdrawn at the latest by August 2019.
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 document supersedes EN ISO 5178:2011.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 5178:2019 has been approved by CEN as EN ISO 5178:2019 without any modification.

INTERNATIONAL ISO
STANDARD 5178
Second edition
2019-01
Destructive tests on welds in metallic
materials — Longitudinal tensile test
on weld metal in fusion welded joints
Essais destructifs des soudures sur matériaux métalliques — Essai
de traction longitudinale du métal fondu des assemblages soudés
par fusion
Reference number
ISO 5178:2019(E)
©
ISO 2019
ISO 5178:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
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CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 5178:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 1
5 Principle . 1
6 Removal of test specimens . 2
6.1 Location . 2
6.2 Marking . 2
6.3 Heat treatment and/or ageing . 2
6.4 Extraction . 2
6.4.1 General. 2
6.4.2 Steel . 2
6.4.3 Other metallic material . 2
6.5 Machining of test specimens . 2
6.6 Dimensions . 3
6.7 Surface quality . 4
7 Conditions of testing . 4
8 Test results . 4
8.1 General . 4
8.2 Examination of fracture surfaces . 4
9 Test report . 4
Annex A (informative) Example of a test report . 5
...

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