prEN 12680-4

Founding - Ultrasonic testing - Part 4: Phased array ultrasonic testing of steel castings

This document specifies requirements for phased array ultrasonic examination of steel castings with low ultrasonic attenuation. It is applicable to ferritic, bainitic and martensitic microstructures. It specifies the registration levels and acceptance criteria.
This document applies to the ultrasonic examination of steel castings with a wall thickness of 600 mm or less.
For higher wall thicknesses, special agreements apply regarding the test procedure and recording levels.
This document does not apply to austenitic steels and cast irons, lamellar graphite and spheroidal cast irons and welded assemblies. For other ferrous materials, this document gives guidance. The registration levels and acceptance criteria are to be adapted.
In this document, phased array is used both for phased array technique and TFM technique.

Gießereiwesen - Ultraschallprüfung - Teil 4: Phased-Array-Ultraschallprüfung von Stahlgussteilen

Dieses Dokument legt Anforderungen für die Phased-Array-Ultraschallprüfung von Stahlgussstücken mit niedriger Ultraschalldämpfung fest. Es gilt für ferritische, bainitische und martensitische Mikrostrukturen. Es legt Registriergrenzen und Annahmekriterien fest.
Dieses Dokument gilt für die Ultraschallprüfung von Stahlgussstücken mit einer Wanddicke von höchstens 600 mm.
Für größere Wanddicken gelten hinsichtlich dem Prüfverfahren und der Aufzeichnungsgrenzen besondere Vereinbarungen.
Dieses Dokument gilt nicht für austenitischen Stahl und Gusseisen, Lamellengraphit und Gusseisen mit Kugelgraphit sowie Schweißbaugruppen. Für andere eisenhaltige Werkstoffe fungiert dieses Dokument als Leitfaden. Die Registriergrenzen und Annahmekriterien müssen übernommen werden.
In diesem Dokument wird Phased-Array sowohl für die Phased-Array-Technologie als auch die TFM-Verfahren verwendet.

Fonderie — Contrôle par ultrasons — Partie 4 : Contrôle par ultrasons en multiéléments de pièces moulées en acier

Le présent document spécifie les exigences pour le contrôle par ultrasons en multiéléments de pièces moulées en acier avec une faible atténuation ultrasonore. Il est applicable aux microstructures ferritiques, bainitiques et martensitiques. Il spécifie les niveaux d’enregistrement et les critères d’acceptation.
Le présent document s’applique au contrôle par ultrasons des pièces moulées en acier avec une épaisseur de paroi de 600 mm ou moins.
Pour des épaisseurs de parois supérieures, des accords spéciaux s'appliquent en ce qui concerne la procédure de contrôle et les niveaux d'enregistrement.
Le présent document ne s’applique pas aux aciers austénitiques et aux fontes, aux fontes à graphite lamellaire et aux fontes à graphite sphéroïdal, ni aux assemblages soudés. Pour les autres matériaux ferreux, le présent document donne des recommandations. Les niveaux d’enregistrement et les critères d’acceptation sont à adapter.
Dans le présent document, les réseaux phasés sont utilisés à la fois pour la technique multiéléments et pour la technique focalisation en tous points (FTP).

Livarstvo - Ultrazvočno preskušanje - 4. del: Ultrazvočno preizkušanje jeklenih ulitkov s faznim nizom

General Information

• Status: Not Published
• Publication Date: 14-Mar-2027
• ICS: 77.140.80 - Iron and steel castings
• Technical Committee: CEN/TC 190 - Foundry technology
• Drafting Committee: CEN/TC 190/WG 10 - Inner defects
• Current Stage: 4020 - Submission to enquiry - Enquiry
• Start Date: 08-May-2025
• Due Date: 27-Oct-2025
• Completion Date: 08-May-2025
• Ref Project: oSIST prEN 12680-4:2025 - Founding - Ultrasonic testing - Part 4: Phased array ultrasonic testing of steel castings

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2025
Livarstvo - Ultrazvočno preskušanje - 4. del: Ultrazvočno preizkušanje jeklenih
ulitkov s faznim nizom
Founding - Ultrasonic testing - Part 4: Phased array ultrasonic testing of steel castings
Gießereiwesen - Ultraschallprüfung - Teil 4: Phased-Array-Ultraschallprüfung von
Stahlgussteilen
Fonderie — Contrôle par ultrasons — Partie 4 : Contrôle par ultrasons en multiéléments
de pièces moulées en acier
Ta slovenski standard je istoveten z: prEN 12680-4
ICS:
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.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2025
ICS 77.140.80
English Version
Founding - Ultrasonic testing - Part 4: Phased array
ultrasonic testing of steel castings
Fonderie - Contrôle par ultrasons - Partie 4: Contrôle Gießereiwesen - Ultraschallprüfung - Teil 4: Phased-
par ultrasons multiéléments de pièces en acier moulé Array-Ultraschallprüfung von Stahlgussteilen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 190.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

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. prEN 12680-4:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Requirements before ordering . 9
4.1 Order information . 9
4.2 Scope of examination. 9
4.3 Test procedure . 9
5 Personnel qualification . 10
6 Equipment . 10
6.1 General. 10
6.2 Ultrasonic instrument . 10
6.3 Probes . 10
6.4 Scanning mechanisms . 10
7 Preparation before testing . 10
7.1 Equipment checking . 10
7.2 Test and scan parameters . 11
7.3 Geometric considerations . 11
7.4 Preparation of scanning surfaces . 12
7.5 Temperature. 12
7.6 Coupling medium . 12
7.7 The suitability of material for phased array ultrasonic examination . 12
8 Time base and sensitivity settings . 13
8.1 Parameters . 13
8.1.1 General. 13
8.1.2 Echo selection gate . 13
8.1.3 Sensitivity setting . 13
8.1.4 Transfer correction . 13
8.2 Parameters checking . 13
8.3 Reference blocks . 14
8.3.1 General. 14
8.3.2 Material . 14
8.3.3 Reference reflectors. 14
9 Test operating mode . 14
9.1 Requirements . 14
9.2 Recommendations . 15
9.3 Data acquisition with position encoder(s) . 15
10 Interpretation and analysis of phased-array network data . 16
10.1 General. 16
10.2 Assessing the quality of phased-array ultrasonic inspection data . 16
10.3 Identification of relevant (or true) indications . 16
10.4 Classification and sizing of relevant indications . 17
10.5 Recording of data collected . 17
10.6 Areas of the wall section . 17
10.7 Severity levels . 17
11 Test report . 17
Annex A (informative) Examples of reference blocks . 22
Bibliography . 23

European foreword
This document (prEN 12680-4:2025) has been prepared by Technical Committee CEN/TC 190
“Foundry technology”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
EN 12680-4, “Founding — Ultrasonic testing — Part 4: Phased array ultrasonic testing of steel castings
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 12680-3, Founding — Ultrasonic testing — Part 3: Spheroidal graphite cast iron castings.
Annex A is informative.
1 Scope
This document specifies requirements for phased array ultrasonic examination of steel castings with
low ultrasonic attenuation. It is applicable to ferritic, bainitic and martensitic microstructures. It
specifies the registration levels and acceptance criteria.
This document applies to the ultrasonic examination of steel castings with a wall thickness of 600 mm
or less.
For higher wall thicknesses, special agreements apply regarding the test procedure and recording
levels.
This document does not apply to austenitic steels and cast irons, lamellar graphite and spheroidal cast
irons and welded assemblies. For other ferrous materials, this document gives guidance. The
registration levels and acceptance criteria are to be adapted.
In this document, phased array is used both for phased array technique and TFM technique.
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.
EN 12680-1, Founding — Ultrasonic testing — Part 1: Steel castings for general purposes
EN ISO 5577, Non-destructive testing — Ultrasonic testing — Vocabulary (ISO 5577)
EN ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel (ISO 9712)
EN ISO 16810, Non-destructive testing — Ultrasonic testing — General principles (ISO 16810)
EN ISO 18563-1, Non-destructive testing — Characterization and verification of ultrasonic phased array
equipment — Part 1: Instruments (ISO 18563-1)
EN ISO 18563-2, Non-destructive testing — Characterization and verification of ultrasonic phased array
equipment — Part 2: Array probes (ISO 18563-2)
EN ISO 18563-3, Non-destructive testing — Characterization and verification of ultrasonic phased array
equipment — Part 3: Complete systems (ISO 18563-3)
EN ISO 23243, Non-destructive testing — Ultrasonic testing with arrays — Vocabulary (ISO 23243)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 5577, EN ISO 23243 and
EN 12680-1 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
ultrasonic instrument
generic term used for both Phased Array instrument and TFM instrument
3.2
phased array image
one- or two-dimensional display, constructed from the collected information of phased array operation
[SOURCE: EN ISO 23243:2020]
3.3
indication or phased-array indication
pattern or disturbance in the phased array image (3.2) which can need further evaluation
3.4
phased array setup
probe arrangement defin
...