BS EN ISO 945-1:2008 - Microstructure of cast irons. Graphite classification by visual analysis – BSI British Standards

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BS EN ISO 945-1:2008

Microstructure of cast irons. Graphite classification by visual analysis

Status : Superseded, Withdrawn   Published : December 2008 Replaced By : BS EN ISO 945-1:2018

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BS EN ISO 945-1:2008 Microstructure of cast irons. Graphite classification by visual analysis

BS EN ISO 945-1 specifies a method of classifying the microstructure of graphite in cast irons by comparative visual analysis.

The purpose BS EN ISO 945-1 is to provide information about the method of graphite classification. It is not intended to give information on the suitability of cast-iron types and grades for any particular application.

The particular material grade is specified by results from tensile tests or hardness testing and, in the case of austenitic cast irons, by their chemical composition. The interpretation of graphite form and size does not allow a statistically valid statement on the fulfilment of the requirements specified in the relevant material standard. The structure of the metallic matrix (e.g. ferrite, pearlite) has a significant effect on the material properties. Such an interpretation is not the purpose of BS EN ISO 945-1.

Contents of BS EN ISO 945-1:

Foreword
Introduction
1 Scope
2 General
2.1 Designation system for classifying graphite in cast irons
2.2 Visual classification of graphite
3 Sampling and preparation of samples
3.1 Samples taken from a casting
3.2 Sample preparation
4 Procedure for graphite classification
4.1 Procedure for visual classification of graphite
4.2 Evaluation of the analysis results
5 Reference images
5.1 General
5.2 Reference images for graphite form
5.3 Reference images for the distribution of graphite (form I
5.4 Reference images for graphite size
6 Designation of graphite by form, distribution and size
6.1 Designation system
6.2 Designation of intermediate graphite sizes
6.3 Designation of mixed graphite forms, distributions and sizes
6.4 Nodule count
7 Report
Annex A (informative) Typical graphite forms in cast-iron materials (Examples of photomicrographs)
Annex B (informative) Distribution of flake (lamellar) graphite (form I) (Examples of photomicrographs)
Annex C (informative) Common terminology and main occurrences concerning graphite in cast irons
Bibliography

 




Standard NumberBS EN ISO 945-1:2008
TitleMicrostructure of cast irons. Graphite classification by visual analysis
StatusSuperseded, Withdrawn
Publication Date31 December 2008
Confirm Date01 January 2013
Withdrawn Date06 March 2018
Cross ReferencesISO 185, ISO 643, ISO 1083, ISO 2892, ISO 5922, ISO 16112, ISO 17804, ASTM A 247
Replaced ByBS EN ISO 945-1:2018
ReplacesBS EN ISO 945:1994
International RelationshipsISO 945-1:2008/Cor 1:2010,EN ISO 945-1 Corr 1 (03/10) (I
Amended ByCorrigendum, April 2010
DescriptorsCarbon, Cast-iron, Ferrous alloys, Photomicrography, Classification systems, Specimen preparation, Designations, Size, Visual inspection (testing), Shape, Crystal microstructure, Microscopic analysis, Graphite, Samples
ICS77.080.10
77.140.80
Title in FrenchMicrostructure des fontes. Classification du graphite par analyse visuelle
Title in GermanMikrostruktur von Gusseisen. Graphitklassifizierung durch visuelle Auswertung
CommitteeISE/111
ISBN978 0 580 70831 2
PublisherBSI
FormatA4
DeliveryYes
Pages28
File Size554 KB
Price£176.00


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