BS EN 10247:2017 - Micrographic examination of the non-metallic inclusion content of steels using standard pictures

BS EN 10247:2017

Micrographic examination of the non-metallic inclusion content of steels using standard pictures

Status : Current, Under review   Published : September 2017



This draft European Standard defines a method of microscopic non-metallic endogenous inclusion assessment using picture charts. The method does not apply to particles of a length or diameter less than 3,0 µm or a width smaller than 2,0 µm. If defined by a product standard or agreement between the involved parties for certain special products, inclusions with a width below 2,0 µm can be evaluated by length alone.Inclusions with dimensions exceeding the upper limits in Table 2 are evaluated as belonging to the maximum class and noted separately with their true dimensions (see 7.5.6). It is assumed, if particles are elongated or if there are stringers of particles, that they are parallel to each other. Other arrangements are not covered by this draft standard. This draft European Standard applies to samples with a microscopic precipitation approaching random distribution. From the data of measurements obtained by this method, evaluation according to other standards can be established. This draft European Standard does not apply to free cutting steels. NOTE The basic principle of this draft European Standard allows the determination of non-metallic inclusion content by image analysis techniques.

Standard NumberBS EN 10247:2017
TitleMicrographic examination of the non-metallic inclusion content of steels using standard pictures
StatusCurrent, Under review
Publication Date19 September 2017
Normative References(Required to achieve compliance to this standard)EN ISO/IEC 17025:2005, ISO/IEC 17025:2005, ISO 9042:1988
Informative References(Provided for Information)ASTM E45 - 13, DIN 50602:1985 (E), ISO 4967:1998, NF A 04-106, SS 111116
ReplacesBS EN 10247:2007
International RelationshipsEN 10247:2017
DescriptorsClassification systems, Steels, Visual inspection (testing), Charts, Grades (quality), Non-metallic inclusions, Size, Test equipment, Mathematical calculations, Metallography, Determination of content, Specimen preparation, Statistical methods of analysis, Test specimens, Comparative tests, Inclusions, Error correction, Microscopic analysis, Illustrations, Testing conditions, Dimensions
Title in FrenchDétermination micrographique de la teneur en inclusions non-métalliques des aciers à l'aide d'images-types
Title in GermanMetallographische Prüfung des Gehaltes nichtmetallischer Einschlüsse in Stählen mit Bildreihen
ISBN978 0 580 92190 2
File Size2.082 MB

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