SIST EN ISO 13919-1:2020
(Main)Electron and laser-beam welded joints - Requirements and recommendations on quality levels for imperfections - Part 1: Steel, nickel, titanium and their alloys (ISO 13919-1:2019)
Electron and laser-beam welded joints - Requirements and recommendations on quality levels for imperfections - Part 1: Steel, nickel, titanium and their alloys (ISO 13919-1:2019)
This document gives requirements and recommendations on levels of imperfections in electron and laser-beam welded joints in steel, nickel, titanium and their alloys. Three levels are given in such a way as to permit application for a wide range of welded fabrications. Quality level B corresponds to the highest requirement of the finished weld. The levels refer to production quality and not to the fitness-for-purpose of the product manufactured. This document applies to electron and laser beam welding of: - steel, nickel, titanium and their alloys; - all types of welds welded with or without additional filler wire; - materials equal to or above 0,5 mm thickness for electron and laser beam welding. The purpose of this document is to define the dimensions of typical imperfections which can be expected in normal fabrication. It can be used within a quality system for the production of welded joints. It provides three sets of dimensional values from which a selection can be made for a particular application. The quality level necessary in each case is defined by the application standard or the responsible designer in conjunction with the manufacturer, user and/or other parties concerned. The quality level is expected to be prescribed prior to the start of production, preferably at the enquiry or order stage. For special purposes, additional details may need to be prescribed. When significant deviations from the joint geometries and dimensions stated in this document are present in the welded product, it is necessary to evaluate to what extent the provisions of this document can apply. Metallurgical aspects, e.g. grain size, hardness are not covered by this document. This document does not address the methods used for the detection of imperfections. This document is directly applicable to visual examination of welds and does not include details of recommended methods of detection or sizing by other non-destructive means. There are difficulties in using these limits to establish appropriate criteria applicable to non-destructive testing methods, such as ultrasonic, radiographic and penetrant testing, and they can need to be supplemented by additional requirements for inspection, examination and testing.
Elektronen- und Laserstrahl-Schweißverbindungen - Leitfaden für Bewertungsgruppen für Unregelmäßigkeiten - Teil 1: Stahl, Nickel, Titan und seine Legierungen (ISO 13919-1:2019)
Dieses Dokument enthält Anforderungen und Empfehlungen für die Bewertung von Unregelmäßigkeiten in elektronen- und laserstrahlgeschweißten Verbindungen aus Stahl, Nickel, Titan und deren Legierungen. Die drei Bewertungsgruppen sind so festgelegt, dass sie eine breite Anwendung in der schweißtechnischen Fertigung erlauben. Bewertungsgruppe B entspricht der höchsten Anforderung an die fertige Schweißung. Die Bewertungsgruppen beziehen sich auf die Fertigungsqualität und nicht auf die Gebrauchstauglichkeit der gefertigten Erzeugnisse.
Dieses Dokument gilt für das Elektronen- und Laserstrahlschweißen von:
— Stahl, Nickel, Titan und deren Legierungen;
— allen Arten von Nähten, geschweißt mit oder ohne Zusatz;
— Werkstoffdicken gleich oder größer 0,5 mm für das Elektronen- und Laserstrahlschweißen.
Der Zweck dieses Dokuments ist, typische Unregelmäßigkeiten zu definieren, die in einer normalen Fertigung erwartet werden können. Es kann in einem Qualitätssystem für die Herstellung von geschweißten Verbindungen benutzt werden. Es legt drei Gruppen von Werten für die Abmessungen fest, aus denen eine Auswahl für eine bestimmte Anwendung getroffen werden kann. Die Bewertungsgruppe, die für den Einzelfall notwendig ist, wird durch die Anwendungsnorm oder durch den verantwortlichen Konstrukteur zusammen mit dem Hersteller, Anwender und/oder anderen betroffenen Stellen festgelegt. Die Bewertungsgruppe ist vor Fertigungsbeginn, vorzugsweise im Angebots- oder Bestellstadium, festzulegen. In Sonderfällen kann es erforderlich sein, dass Zusatzangaben festgelegt werden müssen.
Wenn im geschweißten Erzeugnis entscheidende Abweichungen hinsichtlich der Nahtgeometrien und der in diesem Dokument beschriebenen Maße bestehen, ist der Umfang abzuschätzen, in dem die Bedingungen dieses Dokuments angewendet werden können.
Metallurgische Aspekte, z. B. Korngröße, Härte, sind in diesem Dokument nicht berücksichtigt.
Dieses Dokument behandelt nicht die Verfahren zum Nachweis von Unregelmäßigkeiten. Dieses Dokument kann direkt für die Sichtprüfung von Schweißungen benutzt werden. Es enthält keine Einzelheiten über die zu empfehlenden Verfahren zum Nachweis oder zur zerstörungsfreien Prüfung zur Größenbestimmung. Es gibt Schwierigkeiten in der Anwendung dieser Grenzen, um entsprechende Kriterien, die für zerstörungsfreie Prüfverfahren wie Ultraschall-, Durchstrahlungs- und Eindringprüfung anwendbar sind, aufzustellen. Deshalb können ergänzende Anforderungen für Untersuchungen, Überwachung und Prüfung erforderlich sein.
Assemblages soudés par faisceau d'électrons et par faisceau laser - Exigences et recommandations sur les niveaux de qualité des défauts - Partie 1: Acier, nickel, titane et leurs alliages (ISO 13919-1:2019)
Le présent document donne des exigences et des recommandations sur les niveaux des défauts dans les assemblages en acier, nickel, titane et leurs alliages, soudés par faisceau d'électrons et par faisceau laser. Il prévoit trois niveaux de façon à être applicable à une large gamme de fabrications soudées. Le niveau de qualité B correspond à l'exigence la plus élevée pour la soudure terminée. Ces niveaux se rapportent à la qualité au sortir de l'atelier et non à l'aptitude à l'emploi du produit.
Le présent document est applicable au soudage par faisceau d'électrons et par faisceau laser:
— de l'acier, du nickel, du titane et de leurs alliages;
— de tous types de soudures réalisées avec ou sans fil d'apport;
— de matériaux d'épaisseur supérieure ou égale à 0,5 mm en soudage par faisceau d'électrons et par faisceau laser.
Le présent document a pour objet de définir les dimensions des défauts types qui peuvent être rencontrés en fabrication normale. Elle peut être utilisée dans un système de qualité pour la réalisation d'assemblages soudés. Elle offre trois niveaux de valeurs dimensionnelles, parmi lesquels peut s'effectuer le choix pour une application donnée. Il convient que le niveau de qualité adapté à chaque cas soit défini dans la norme d'application ou par le concepteur responsable en liaison avec le fabricant, l'utilisateur et/ou autres parties concernées. Normalement, le niveau de qualité doit être spécifié avant le démarrage de la fabrication, de préférence au moment de l'appel d'offres ou de la commande. Des détails supplémentaires peuvent nécessiter d'être spécifiés dans des cas particuliers.
Pour tout écart significatif dans la géométrie ou les dimensions de l'assemblage décrites dans le présent document apparaissant sur le produit soudé, il est nécessaire d'évaluer dans quelle mesure les dispositions du présent document restent applicables.
Le présent document ne traite pas des aspects métallurgiques tels que la grosseur de grain ou la dureté.
Le présent document ne traite pas des méthodes utilisées pour la détection des défauts. Le présent document est directement applicable au contrôle visuel des soudures et ne comporte pas de détails des méthodes recommandées pour la détection ou le dimensionnement par des méthodes END. Il existe des difficultés dans l'utilisation de ces limites pour établir des critères adéquats applicables aux méthodes d'essais non destructifs tels que ultrasons, radiographie, et ressuage. Il peut donc s'avérer nécessaire de la compléter par des exigences relatives aux examens, aux contrôles et aux essais.
Varjenje - Zvarni spoji, zvarjeni z elektronskim snopom in laserskim žarkom - Zahteve in priporočila za stopnje sprejemljivosti nepravilnosti - 1. del: Jeklo, nikelj, titan in njihove zlitine (ISO 13919-1:2019)
Ta dokument vsebuje zahteve in priporočila glede ravni nepravilnosti pri elektronsko in lasersko varjenih spojih v jeklu, niklju, titanu in njihovih zlitinah. Za uporabo širokega nabora varjenih izdelkov so določene tri stopnje. Raven kakovosti B ustreza največji zahtevi končanega zvara. Stopnje se navezujejo na kakovost izdelave in ne na primernost za namen proizvedenega izdelka. Ta dokument se uporablja za varjenje naslednjih snovi z elektronskim snopom in laserskim žarkom: – jeklo, nikelj, titan in njihove zlitine; – vse vrste zvarov, zvarjenih z dodatno polnilno žico ali brez nje; – materiali debeline 0,5 mm ali več za varjenje z elektronskim snopom in laserskim žarkom. Namen tega dokumenta je določiti mere tipičnih nepravilnosti, ki jih je mogoče pričakovati pri normalni proizvodnji. Uporablja se lahko znotraj sistema kakovosti za izdelavo zvarjenih spojev. Ponuja tri nabore vrednosti mer, med katerimi je mogoče opraviti izbiro za določeno vrsto uporabe. Raven kakovosti, potrebna pri posameznem primeru, je določena s standardom uporabe ali jo določa odgovorni oblikovalec v sodelovanju s proizvajalcem, uporabnikom in/ali drugimi vpletenimi strankami. Za raven kakovosti se pričakuje, da je predpisana pred začetkom proizvodnje, po možnosti v fazi povpraševanja ali naročanja. Za posebne namene bo morda treba predpisati dodatne podrobnosti. Kadar so v zvarjenem izdelku prisotni znatni odkloni v geometrijah spojev in merah, navedenih v tem dokumentu, je treba oceniti, do katere mere lahko veljajo določbe tega dokumenta. Ta dokument ne zajema metalurških vidikov, npr. velikosti zrn in trdnosti. Ta dokument ne obravnava metod, uporabljenih za zaznavanje nepravilnosti. Ta dokument se neposredno uporablja za vizualne preglede zvarov in ne vključuje podrobnosti o priporočenih metodah zaznavanja ali določanja velikosti na druge, neuničevalne načine. Pri uporabi teh omejitev za vzpostavitev primernih meril, ki se uporabljajo za neuničevalne metode preskušanja, na primer ultrazvočno, radiografsko preskušanje in preskušanje s penetranti, prihaja do težav in morda jih je treba nadomestiti z dodatnimi zahtevami za nadzor, pregledovanje in preskušanje.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 13919-1:2020
01-marec-2020
Nadomešča:
SIST EN ISO 13919-1:1998
Varjenje - Zvarni spoji, zvarjeni z elektronskim snopom in laserskim žarkom -
Zahteve in priporočila za stopnje sprejemljivosti nepravilnosti - 1. del: Jeklo, nikelj,
titan in njihove zlitine (ISO 13919-1:2019)
Electron and laser-beam welded joints - Requirements and recommendations on quality
levels for imperfections - Part 1: Steel, nickel, titanium and their alloys (ISO 13919-
1:2019)
Elektronen- und Laserstrahl-Schweißverbindungen - Leitfaden für Bewertungsgruppen
für Unregelmäßigkeiten - Teil 1: Stahl, Nickel, Titan und seine Legierungen (ISO 13919-
1:2019)
Assemblages soudés par faisceau d'électrons et par faisceau laser - Exigences et
recommandations sur les niveaux de qualité des défauts - Partie 1: Acier, nickel, titane et
leurs alliages (ISO 13919-1:2019)
Ta slovenski standard je istoveten z: EN ISO 13919-1:2019
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
SIST EN ISO 13919-1:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 13919-1:2020
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SIST EN ISO 13919-1:2020
EN ISO 13919-1
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 13919-1:1996
English Version
Electron and laser-beam welded joints - Requirements and
recommendations on quality levels for imperfections - Part
1: Steel, nickel, titanium and their alloys (ISO 13919-
1:2019)
Assemblages soudés par faisceau d'électrons et par Elektronen- und Laserstrahl-Schweißverbindungen -
faisceau laser - Exigences et recommandations sur les Leitfaden für Bewertungsgruppen für
niveaux de qualité des défauts - Partie 1: Acier, nickel, Unregelmäßigkeiten - Teil 1: Stahl, Nickel, Titan und
titane et leurs alliages (ISO 13919-1:2019) seine Legierungen (ISO 13919-1:2019)
This European Standard was approved by CEN on 21 October 2019.
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, 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, 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 13919-1:2019 E
worldwide for CEN national Members.
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SIST EN ISO 13919-1:2020
EN ISO 13919-1:2019 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 13919-1:2020
EN ISO 13919-1:2019 (E)
European foreword
This document (EN ISO 13919-1:2019) 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 May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
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 13919-1:1996.
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, 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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 13919-1:2019 has been approved by CEN as EN ISO 13919-1:2019 without any
modification.
3
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SIST EN ISO 13919-1:2020
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SIST EN ISO 13919-1:2020
INTERNATIONAL ISO
STANDARD 13919-1
Second edition
2019-10
Electron and laser-beam welded
joints — Requirements and
recommendations on quality levels for
imperfections —
Part 1:
Steel, nickel, titanium and their alloys
Assemblages soudés par faisceau d'électrons et par faisceau laser —
Exigences et recommandations sur les niveaux de qualité des
défauts —
Partie 1: Acier, nickel, titane et leurs alliages
Reference number
ISO 13919-1:2019(E)
©
ISO 2019
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SIST EN ISO 13919-1:2020
ISO 13919-1:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
CP 401 • Ch. de Blandonnet 8
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
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SIST EN ISO 13919-1:2020
ISO 13919-1:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols (and abbreviated terms) . 2
5 Assessment of imperfections (adapt ed to ISO 5817 and ISO 12932) .2
Annex A (informative) Examples of determination of percentage (%) porosity .12
Annex B (informative) Additional information for use of this document .14
Bibliography .15
© ISO 2019 – All rights reserved iii
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SIST EN ISO 13919-1:2020
ISO 13919-1:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes,
Subcommittee SC 10, Quality management in the field of welding.
This second edition cancels and replaces the first edition (ISO 13919-1:1996) which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the text has been editorial revised;
— the normative references have been updated;
— reference to ISO 6520-1 has been added to bring the document in line with ISO 5817.
A list of all parts in the ISO 13919 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www .iso .org/members .html. Official
interpretations of TC 44 documents, where they exist, are available from this page: https: //committee
.iso .org/sites/tc44/home/interpretation .html.
iv © ISO 2019 – All rights reserved
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SIST EN ISO 13919-1:2020
ISO 13919-1:2019(E)
Introduction
This document is intended to be used as a reference in drafting application codes and/or other application
standards. It contains a simplified selection of laser and electron beam welding imperfections based on
the designations given in ISO 6520-1.
Limits on some of the individual imperfections described in ISO 6520-1 have been prescribed directly
whereas some have been grouped together. The basic numerical referencing system from ISO 6520-1
has been used.
The quality levels given in this document provide basic reference data and are not specifically related
to any particular application. They refer to the types of welded joint in fabrication and not to the
complete product or component itself. Therefore, it is possible that different quality levels are applied
to individual welded joints in the same product or component.
It would normally be expected that, for a particular welded joint, the dimensional limits for
imperfections can all be covered by specifying one quality level. In some cases, it can be necessary to
specify different quality levels for different imperfections in the same welded joint.
The choice of quality level for any application is expected to take account of design considerations,
subsequent processing (e.g. surfacing), mode of stressing (e.g. static, dynamic), service requirements
and conditions (e.g. temperature, pressure or vacuum levels, environment) and consequences of failure.
These considerations may lead to the need to include additional requirements on weld quality outside
of those referred to in this document. Economic factors are also important and are intended to include
not only the cost of welding, but also of inspection, test and repair.
Although this document includes types of imperfection relevant to the beam welding processes given
in the scope, only those which are applicable to the process and application in question need to be
considered.
Imperfections are quoted in terms of their actual dimensions, and their detection and evaluation
can require the use of one or more methods of non-destructive testing. The detection and sizing of
imperfections are dependent on the inspection methods and the extent of testing specified in the
application standard or contract.
The values given for imperfections are for welds produced using normal welding practice. More
stringent requirements as stated in quality level B can include the need for additional manufacturing
processes, e.g. grinding, dressing.
© ISO 2019 – All rights reserved v
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SIST EN ISO 13919-1:2020
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SIST EN ISO 13919-1:2020
INTERNATIONAL STANDARD ISO 13919-1:2019(E)
Electron and laser-beam welded joints — Requirements
and recommendations on quality levels for
imperfections —
Part 1:
Steel, nickel, titanium and their alloys
1 Scope
This document gives requirements and recommendations on levels of imperfections in electron and
laser-beam welded joints in steel, nickel, titanium and their alloys. Three levels are given in such a way
as to permit application for a wide range of welded fabrications. Quality level B corresponds to the
highest requirement of the finished weld. The levels refer to production quality and not to the fitness-
for-purpose of the product manufactured.
This document applies to electron and laser beam welding of:
— steel, nickel, titanium and their alloys;
— all types of welds welded with or without additional filler wire;
— materials equal to or above 0,5 mm thickness for electron and laser beam welding.
The purpose of this document is to define the dimensions of typical imperfections which can be
expected in normal fabrication. It can be used within a quality system for the production of welded
joints. It provides three sets of dimensional values from which a selection can be made for a particular
application. The quality level necessary in each case is defined by the application s
...
SLOVENSKI STANDARD
oSIST prEN ISO 13919-1:2018
01-december-2018
Varjenje - Zvarni spoji z elektronskim in laserskim žarkom - Navodilo za stopnje
sprejemljivosti napak - 1. del: Jeklo, nikelj, titan in njihove zlitine (ISO/DIS 13919-
1:2018)
Welding - Electron and laser-beam welded joints - Guidance on quality levels for
imperfections - Part 1: Steel, nickel, titanium and their alloys (ISO/DIS 13919-1:2018)
Schweißen - Elektronen- und Laserstrahl-Schweißverbindungen; Leitfaden für
Bewertungsgruppen für Unregelmäßigkeiten - Teil 1: Stahl, Nickel, Titan und seine
Legierungen (ISO/DIS 13919-1:2018)
Soudage - Assemblages soudés par faisceau d'électrons et par faisceau laser - Guide
des niveaux de qualité des défauts - Partie 1: Acier (ISO/DIS 13919-1:2018)
Ta slovenski standard je istoveten z: prEN ISO 13919-1
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
oSIST prEN ISO 13919-1:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 13919-1:2018
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oSIST prEN ISO 13919-1:2018
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13919-1
ISO/TC 44/SC 10 Secretariat: DIN
Voting begins on: Voting terminates on:
2018-10-26 2019-01-18
Welding — Electron and laser-beam welded joints —
Guidance on quality levels for imperfections —
Part 1:
Steel, nickel, titanium and their alloys
Soudage — Assemblages soudés par faisceau d'électrons et par faisceau laser — Guide des niveaux de
qualité des défauts —
ICS: 25.160.40
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 13919-1:2018(E)
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. ISO 2018
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oSIST prEN ISO 13919-1:2018
ISO/DIS 13919-1:2018(E)
ISO/DIS 13919-1:2018(E)
Contents Page
Foreword . iv
Introduction . v
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Symbols (and abbreviated terms) .2
5 Assessment of imperfections (adapted to ISO 5817 and ISO 12932) .2
Annex A (informative) Examples of determination of percentage (%) porosity . 14
Annex B (informative) Additional information for use of this Standard . 16
Bibliography . 17
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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
CP 401 • Ch. de Blandonnet 8
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
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oSIST prEN ISO 13919-1:2018
ISO/DIS 13919-1:2018(E)
Contents Page
Foreword . iv
Introduction . v
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Symbols (and abbreviated terms) .2
5 Assessment of imperfections (adapted to ISO 5817 and ISO 12932) .2
Annex A (informative) Examples of determination of percentage (%) porosity . 14
Annex B (informative) Additional information for use of this Standard . 16
Bibliography . 17
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oSIST prEN ISO 13919-1:2018
ISO/DIS 13919-1:2018(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national
standards bodies (ISO member bodies). The work of preparing International Standards is normally
carried out through ISO technical committees. Each member body interested in a subject for which a
technical committee has been established has the right to be represented on that committee.
International organizations, governmental and non-governmental, in liaison with ISO, also take part in
the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all
matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee [or Project Committee] ISO/TC [or ISO/PC] ###,
[name of committee], Subcommittee SC ##, [name of subcommittee].
This second/third/… edition cancels and replaces the first/second/… edition (ISO #####:####), which
has been technically revised.
The main changes compared to the previous edition are as follows:
— xxx xxxxxxx xxx xxxx
A list of all parts in the ISO ##### series can be found on the ISO website.
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oSIST prEN ISO 13919-1:2018
ISO/DIS 13919-1:2018(E)
Introduction
This International Standard is intended to be used as a reference in drafting application codes and/or
other application standards. It contains a simplified selection of laser and electron beam welding
imperfections based on the designations given in ISO 6520-1.
Some imperfections described in ISO 6520-1 have been used directly and some have been grouped
together. The basic numerical referencing system from ISO 6520-1 has been used.
The purpose of this International Standard is to define the dimensions of typical imperfections which
can be expected in normal fabrication. It can be used within a quality system for the production of
welded joints. It provides three sets of dimensional values from which a selection can be made for a
particular application. The quality level necessary in each case is defined by the application standard or
the responsible designer in conjunction with the manufacturer, user and/or other parties concerned.
The quality level is expected to be prescribed prior to the start of production, preferably at the enquiry
or order stage. For special purposes, additional details can be prescribed.
The quality levels given in this International Standard provide basic reference data and are not
specifically related to any particular application. They refer to the types of welded joint in fabrication
and not to the complete product or component itself. It is possible, therefore, that different quality
levels are applied to individual welded joints in the same product or component.
It would normally be expected that for a particular welded joint the dimensional limits for
imperfections can all be covered by specifying one quality level. In some cases, it can be necessary to
specify different quality levels for different imperfections in the same welded joint.
The choice of quality level for any application is expected to take account of design considerations,
subsequent processing (e.g. surfacing), mode of stressing (e.g. static, dynamic), service conditions (e.g.
temperature, environment) and consequences of failure. Economic factors are also important and are
intended to include not only the cost of welding, but also of inspection, test and repair.
Although this International Standard includes types of imperfection relevant to the beam welding
processes given in Clause 1, only those which are applicable to the process and application in question
need to be considered.
Imperfections are quoted in terms of their actual dimensions, and their detection and evaluation may
require the use of one or more methods of non-destructive testing. The detection and sizing of
imperfections are dependent on the inspection methods and the extent of testing specified in the
application standard or contract.
This International Standard does not address the methods used for the detection of imperfections. This
International Standard is directly applicable to visual examination of welds and does not include details
of recommended methods of detection or sizing by other non-destructive means. There are difficulties
in using these limits to establish appropriate criteria applicable to non-destructive testing methods,
such as ultrasonic, radiographic and penetrant testing, and they can need to be supplemented by
requirements for inspection, examination and testing.
The values given for imperfections are for welds produced using normal welding practice. More
stringent requirements as stated in quality level B can include additional manufacturing processes, e.g.
grinding, dressing.
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oSIST prEN ISO 13919-1:2018
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oSIST prEN ISO 13919-1:2018
DRAFT INTERNATIONAL STANDARD ISO/DIS 13919-1:2018(E)
Welding — Electron and laser-beam welded joints - Guidance
on quality levels for imperfections — Part 1: Part 1: Steel,
nickel, titanium and their alloys
1 Scope
This document gives guidance on levels of imperfections in electron and laser beam welded joints in
steel, nickel, titanium and their alloys. Three levels are given in such a way as to permit application for a
wide range of welded fabrications. The levels refer to production quality and not to the fitness-for-
purpose of the product manufactured.
This document applies to electron and laser beam welding of:
— steel, nickel, titanium and their alloys;
— all types of welds welded with or without additional filler wire;
— materials equal to or above 0,5 mm thickness for electron and laser beam welding.
When significant deviations from the joint geometries and dimensions stated in this standard are
present in the welded product, it is necessary to evaluate to what extent the provisions of this Standard
can apply.
Metallurgical aspects, e.g. grain size, hardness are not covered by this standard.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections
ISO 6520-1, Welding and allied processes — Classification of geometric imperfections in metallic materials
— Part 1: Fusion welding
ISO 12932, Welding — Laser-arc hybrid welding of steels, nickel and nickel alloys — Quality levels for
imperfections
ISO 17639, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination
of welds
3 Terms and definitions
No terms and definitions are listed in this document.
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