SIST EN 12680-3:2026
(Main)Founding - Ultrasonic testing - Part 3: Spheroidal graphite cast iron castings
Founding - Ultrasonic testing - Part 3: Spheroidal graphite cast iron castings
This document specifies the requirements for the ultrasonic testing of spheroidal graphite cast iron castings and the techniques for determining internal discontinuities by the pulse-echo technique.
This document does not apply to ultrasonic testing of the nodularity of spheroidal graphite cast irons.
This document does not apply to phased array technique and to transmission technique.
NOTE The transmission technique has insufficient sensitivity to detect the discontinuities found in spheroidal graphite cast iron castings and is used in exceptional cases only.
Gießereiwesen - Ultraschallprüfung - Teil 3: Gussstücke aus Gusseisen mit Kugelgraphit
Dieses Dokument legt die Anforderungen fest an die Ultraschallprüfung von Gussstücken aus Gusseisen mit Kugelgraphit und die Techniken zur Bestimmung innerer Inhomogenitäten mit Hilfe der Impuls-Echo-Technik.
Dieses Dokument ist nicht anwendbar für die Ultraschallprüfung der Kugelgraphitausbildung bei Gusseisen mit Kugelgraphit.
Dieses Dokument ist nicht anwendbar für die Phased-Array-Technik und die Durchschallungstechnik.
ANMERKUNG Die Durchschallungstechnik hat keine ausreichende Empfindlichkeit zum Auffinden von Ungänzen, die in Gussstücken aus Gusseisen mit Kugelgraphit vorkommen, und wird nur in Ausnahmefällen angewendet.
Fonderie - Contrôle par ultrasons - Partie 3: Pièces moulées en fonte à graphite sphéroïdal
Le présent document spécifie les exigences relatives au contrôle par ultrasons des pièce moulées en fonte à graphite sphéroïdal pour la détermination des discontinuités internes par la technique par réflexion.
Le présent document ne s’applique pas au contrôle par ultrasons de la nodularité des fontes à graphite sphéroïdal.
Le présent document ne s’applique pas à la technique multiélément ni à la technique de transmission.
NOTE La technique de transmission n’a pas une sensibilité suffisante pour détecter les discontinuités présentes dans les pièces moulées en fonte à graphite sphéroïdal et n’est utilisée que dans des cas exceptionnels.
Livarstvo - Ultrazvočno preskušanje - 3. del: Ulitki iz sive litine s kroglastim grafitom
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2026
Livarstvo - Ultrazvočno preskušanje - 3. del: Ulitki iz sive litine s kroglastim
grafitom
Founding - Ultrasonic testing - Part 3: Spheroidal graphite cast iron castings
Gießereiwesen - Ultraschallprüfung - Teil 3: Gussstücke aus Gusseisen mit Kugelgraphit
Fonderie - Contrôle par ultrasons - Partie 3: Pièces moulées en fonte à graphite
sphéroïdal
Ta slovenski standard je istoveten z: EN 12680-3:2025
ICS:
77.040.20 Neporušitveno preskušanje Non-destructive testing of
kovin metals
77.140.80 Železni in jekleni ulitki Iron and steel castings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12680-3
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2025
EUROPÄISCHE NORM
ICS 77.040.20; 77.140.80 Supersedes EN 12680-3:2011
English Version
Founding - Ultrasonic testing - Part 3: Spheroidal graphite
cast iron castings
Fonderie - Contrôle par ultrasons - Partie 3: Pièces Gießereiwesen - Ultraschallprüfung - Teil 3:
moulées en fonte à graphite sphéroïdal Gussstücke aus Gusseisen mit Kugelgraphit
This European Standard was approved by CEN on 22 September 2025.
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, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12680-3:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Requirements . 5
4.1 Order information . 5
4.2 Extent of testing . 5
4.3 Wall section zones . 5
4.4 Maximum acceptable size of discontinuities . 6
4.5 Qualification of personnel . 6
4.6 Severity levels . 6
5 Testing . 6
5.1 Principles . 6
5.2 Material . 6
5.3 Equipment and coupling medium . 6
5.3.1 Ultrasonic instrument . 6
5.3.2 Probes . 7
5.3.3 Checking of the ultrasonic test equipment . 8
5.3.4 Coupling medium . 8
5.3.5 Time base range and sensitivity setting of the ultrasonic test equipment . 8
5.3.6 Detection sensitivity . 9
5.4 Preparation of casting surfaces for testing. 9
5.5 Test procedure . 9
5.5.1 General. 9
5.5.2 Sensitivity setting . 9
5.5.3 Consideration of various types of indications . 10
5.5.4 Evaluation and recording of indications . 10
5.5.5 Assessment of discontinuities to be recorded . 10
5.5.6 Characterization and sizing of discontinuities . 10
5.6 Test report . 11
Annex A (informative) Significant technical changes between this document and the
previous edition . 21
Bibliography . 23
European foreword
This document (EN 12680-3:2025) has been prepared by Technical Committee CEN/TC 190 “Foundry
technology”, 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 2026, and conflicting national standards shall be
withdrawn at the latest by May 2026.
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 12680-3:2011.
Annex A provides details of significant technical changes between EN 12680-3:2025 and
EN 12680 3:2011.
This is one of four European Standards for ultrasonic testing. The other standards are:
— EN 12680-1, Founding — Ultrasonic testing — Part 1: Steel castings for general purposes
— EN 12680-2, Founding — Ultrasonic testing — Part 2: Steel castings for highly stressed components
— EN 12680-4, Founding — Ultrasonic testing — Part 4: Phased array ultrasonic testing of steel castings
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Türkiye and the United
Kingdom.
1 Scope
This document specifies the requirements for the ultrasonic testing of spheroidal graphite cast iron
castings and the techniques for determining internal discontinuities by the pulse-echo technique.
This document does not apply to ultrasonic testing of the nodularity of spheroidal graphite cast irons.
This document does not apply to phased array technique and to transmission technique.
NOTE The transmission technique has insufficient sensitivity to detect the discontinuities found in spheroidal
graphite cast iron castings and is used in exceptional cases only.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 16810, Non-destructive testing — Ultrasonic testing — General principles (ISO 16810)
EN ISO 16811, Non-destructive testing — Ultrasonic testing — Sensitivity and range setting (ISO 16811)
EN ISO 16827, Non-destructive testing — Ultrasonic testing — Characterization and sizing of
discontinuities (ISO 16827)
EN ISO 5577, Non-destructive testing — Ultrasonic testing — Vocabulary (ISO 5577)
EN ISO 2400, Non-destructive testing — Ultrasonic testing — Specification for standard block No. 1
(ISO 2400)
EN ISO 22232-1, Non-destructive testing — Characterization and verification of ultrasonic test equipment
— Part 1: Instruments (ISO 22232-1)
EN ISO 22232-2, Non-destructive testing — Characterization and verification of ultrasonic test equipment
— Part 2: Probes (ISO 22232-2)
EN ISO 22232-3, Non-destructive testing — Characterization and verification of ultrasonic test equipment
— Part 3: Combined equipment (ISO 22232-3)
EN ISO 7963, Non-destructive testing — Ultrasonic testing — Specification for calibration block No. 2
(ISO 7963)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 5577 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
rim zone
1/5 of the through-wall thickness from the surface with a minimum of 5 mm and a maximum of 30 mm
thickness in through-wall direction
3.2
dross
accumulation of fine slag particles (oxides, sulphides, etc.) in the rim zone of castings
Note 1 to entry: In smaller castings dross is usually not detected by ultrasonic testing.
4 Requirements
4.1 Order information
The following information shall be available at the time of enquiry and order (see also EN ISO 16810):
a) the areas of the casting and the number or percentage of castings to which the ultrasonic testing
requirements apply.
b) the severity levels for small castings in accordance with Table 1 and if applicable Table 3, or for large
castings Table 2 and if applicable Table 4, to be applied to the various areas of the casting.
c) requirements for a written test procedure.
d) the customer should inform the supplier about the required amount of machining.
e) whether there are any additional requirements.
NOTE 1 Severity levels in Tables 1 and 3 as well as in Tables 2 and 4 can be chosen differently.
NOTE 2 Small castings are typically produced under serial conditions, e.g. automatic moulding lines, with a mass
up to 200 kg.
NOTE 3 Large castings are typically hand moulded, with a mass higher than 200 kg.
4.2 Extent of testing
The areas of the casting to be tested shall be agreed. This agreement shall state how these areas are to be
tested, i.e. point testing or scanning, and in which directions.
These areas should be preferably indicated on the casting drawing.
4.3 Wall section zones
The wall section shall be divided into core and rim zones as shown in Figure 1. For wall thickness equal
to or less than 10 mm the total wall thickness shall be considered as rim zone.
These zones relate to the dimensions of the casting ready for assembly (“finish machined”). If the foundry
does not know the final condition of the casting, the test result applies to the condition “as delivered”.
NOTE An acceptable discontinuity in the core zone in the raw casting condition can be shifted to the rim zone
after final machining by the customer and can become unacceptable.
When a discontinuity is located simultaneously in both, the rim zone and the core zone, the following
applies:
— if equal or more than 20 % of the area of the discontinuity is located in rim zone, the complete
discontinuity is to be considered as a rim zone discontinuity;
— if less than 20 % of the area of the discontinuity is located in rim zone, the complete discontinuity is
to be considered as a core zone discontinuity.
EN 1
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.