This document specifies a method of classifying the microstructure of graphite in cast irons by comparative visual analysis. The purpose of this document 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 grades are specified mainly by mechanical properties and, in the case of austenitic and abrasion resistant 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.
EN ISO 945-1:2019 history
2019EN ISO 945-1:2019 Microstructure of cast irons - Part 1: Graphite classification by visual analysis (ISO 945-1:2019)
2018EN ISO 945-1:2018 Microstructure of cast irons - Part 1: Graphite classification by visual analysis
2008EN ISO 945-1:2008 Microstructure of cast irons - Part 1: Graphite classification by visual analysis (ISO 945-1:2008)