SIST EN 12517-1:2006
(Main)Non-destructive testing of welds - Part 1: Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography - Acceptance levels
Non-destructive testing of welds - Part 1: Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography - Acceptance levels
This European Standard specifies acceptance levels for indications from imperfections in butt welds of steel, nickel, titanium and their alloys detected by radiographic testing. If agreed, the acceptance levels may be applied to other types of welds or materials.
The acceptance levels may be related to welding standards, application standards, specifications or codes. This European Standard assumes that the radiographic testing has been carried out in accordance with EN 1435.
When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted by standards are compared with the dimensions of indications revealed by a radiograph made of the weld.
Zerstörungsfreie Prüfung von Schweißverbindungen - Teil 1: Bewertung von Schweißverbindungen in Stahl, Nickel, Titan und ihren Legierungen mit Durchstrahlung - Zulässigkeitsgrenzen
Dieses Dokument legt für die Durchstrahlungsprüfung die Zulässigkeitsgrenzen für Anzeigen von
Unregelmäßigkeiten von Stumpfschweißnähten in Stahl, Nickel, Titan und ihren Legierungen fest. Falls
vereinbart, dürfen die Zulässigkeitsgrenzen auf andere Arten von Schweißnähten oder andere Werkstoffe
angewendet werden.
Die Zulässigkeitsgrenzen können sich auf Schweißnormen, Anwendungsnormen, Spezifikationen oder Codes
beziehen. Diese Europäische Norm geht davon aus, dass die Durchstrahlungsprüfung nach EN 1435
durchgeführt wurde.
Wenn untersucht wird, ob eine Schweißnaht die Anforderungen an eine Schweißnahtbewertungsgruppe erfüllt,
werden die nach den Normen erlaubten Größen der Unregelmäßigkeiten mit den Abmessungen der Anzeigen
verglichen, die auf der von der Schweißnaht gemachten Durchstrahlungsaufnahme gefunden wurden.
Essais non destructifs des assemblages soudés - Partie 1: Évaluation par radiographie des assemblages soudés en acier, nickel, titane et leurs alliages - Niveaux d'acceptation
La présente Norme européenne spécifie les niveaux d’acceptation des indications des défauts présents dans les assemblages soudés bout a bout en acier, nickel, titane et leurs alliages détectés par contrôle radiographique. En fonction des accords passés, les niveaux d’acceptation peuvent etre appliqués a d’autres types d’assemblages soudés ou matériaux.
Les niveaux d’acceptation peuvent etre reliés a des normes de soudage, des normes d’application, des spécifications ou des codes. La présente Norme européenne présume que le contrôle par radiographie a été exécuté conformément a l’EN 1435.
Lorsqu’il est vérifié qu’une soudure satisfait aux exigences spécifiées pour un niveau de qualité de soudure, les dimensions des défauts permises par les normes sont comparées aux dimensions des indications révélées par la radiographie de la soudure.
Neporušitveno preskušanje zvarnih spojev - 1. del: Ocenjevanje zvarnih spojev na jeklu, niklju, titanu in njihovih zlitinah z radiografijo - Stopnje sprejemljivosti
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Non-destructive testing of welds - Part 1: Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography - Acceptance levelsNeporušitveno preskušanje zvarnih spojev - 1. del: Ocenjevanje zvarnih spojev na jeklu, niklju, titanu in njihovih zlitinah z radiografijo - Stopnje sprejemljivostiEssais non destructifs des assemblages soudés - Partie 1: Évaluation par radiographie des assemblages soudés en acier, nickel, titane et leurs alliages - Niveaux d'acceptationZerstörungsfreie Prüfung von Schweißverbindungen - Teil 1: Bewertung von Schweißverbindungen in Stahl, Nickel, Titan und ihren Legierungen mit Durchstrahlung - ZulässigkeitsgrenzenTa slovenski standard je istoveten z:EN 12517-1:2006SIST EN 12517-1:2006en25.160.40ICS:SIST EN 12517:1999/A1:2004/AC:2004SIST EN 12517:1999/A2:2004SIST EN 12517:1999SIST EN 12517:1999/A1:20031DGRPHãþDSLOVENSKI
STANDARDSIST EN 12517-1:200601-julij-2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12517-1March 2006ICS 25.160.40Supersedes EN 12517:1998
English VersionNon-destructive testing of welds - Part 1: Evaluation of weldedjoints in steel, nickel, titanium and their alloys by radiography -Acceptance levelsEssais non destructifs des assemblages soudés - Partie 1:Évaluation par radiographie des assemblage soudés enacier, nickel, titane et leurs alliages - Niveaux d'acceptationZerstörungsfreie Prüfung von Schweißverbindungen - Teil1: Bewertung von Schweißverbindungen in Stahl, Nickel,Titan und ihren Legierungen mit Durchstrahlung -ZulässigkeitsgrenzenThis European Standard was approved by CEN on 6 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12517-1:2006: E
EN 12517-1:2006 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Radiographic technique.4 4 General.5 5 Acceptance levels.5 Annex A (informative)
Guide to the limitations of radiographic testing.10 A.1 Volumetric imperfections in butt welds.10 A.2 Cracks in butt welds.10 A.3 Planar imperfections in butt welds.10 Annex B (informative)
Examples for determination of area percentage (%) of imperfections.11 Annex C (normative)
Sum of acceptable areas.13 Bibliography.15
EN 12517-1:2006 (E) 3 Foreword This document (EN 12517-1:2006) has been prepared by Technical Committee CEN/TC 121 “Welding”, 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 September 2006, and conflicting national standards shall be withdrawn at the latest by September 2006. This document supersedes EN 12517:1998. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). EN 12517 comprises a series of European Standards for industrial radiographic films which is made up of the following: EN 12517-1 Non-destructive testing of welds – Part 1: Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography – Acceptance levels EN 12517-2 Non-destructive testing of welds – Part 2: Evaluation of welded joints in aluminium and its alloys by radiography – Acceptance levels According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 12517-1:2006 (E) 4 1 Scope This document specifies acceptance levels for indications from imperfections in butt welds of steel, nickel, titanium and their alloys detected by radiographic testing. If agreed, the acceptance levels may be applied to other types of welds or materials. The acceptance levels may be related to welding standards, application standards, specifications or codes. This European Standard assumes that the radiographic testing has been carried out in accordance with EN 1435. When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted by standards are compared with the dimensions of indications revealed by a radiograph made of the weld. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1435, Non-destructive examination of welds — Radiographic examination of welded joints EN ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections (ISO 5817:2003) EN ISO 6520-1, Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 1: Fusion welding (ISO 6520-1:1998) 3 Radiographic technique Depending on the weld quality level, radiographic technique A or B in accordance with EN 1435 is used as shown in Table 1. Table 1 – Radiographic testing Quality levels in accordance with EN ISO 5817
Testing techniques and classes in accordance with EN 1435 Acceptance levels in accordance with
EN 12517 B B 1 C B a 2 D A 3 a However, the minimum number of exposure for circumferential weld testing may correspond to the requirements of class A of EN 1435.
EN 12517-1:2006 (E) 5 4 General Welded joints should be visually tested and evaluated in accordance with EN 970 before radiographic testing. The acceptance levels in this European Standard are basically valid for evaluation of imperfections which cannot be detected and evaluated by visual testing. Surface imperfections (such as undercut and excessive penetration, surface damage, weld spatter etc.) which, due to object geometry, cannot be evaluated, but where the interpreter suspects the EN ISO 5817 quality levels are not fulfilled, shall be subject to more specific testing. When quantification of undercut and/or excessive penetration by radiographic testing is required, specific procedures using test exposures may be applied in order to establish a basis for approximate quantification in accordance with the requirements of EN ISO 5817. This shall be specified. 5 Acceptance levels The acceptance levels for indications are shown in Table 2 and Table 3. The types of imperfections are selected from EN ISO 5817 and defined in EN ISO 6520-1. The symbols used in Table 2 and Table 3 are the following: l length
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