DIN EN ISO 643:2024-12
Steels - Micrographic determination of the apparent grain size (ISO 643:2024); German version EN ISO 643:2024
| Fecha edición: |
2024-12-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries and of estimating the mean grain size of specimens with unimodal size distribution. Although grains are three-dimensional in shape, the metallographic sectioning plane can cut through a grain at any point from a grain corner, to the maximum diameter of the grain, thus producing a range of apparent grain sizes on the two-dimensional plane, even in a sample with a perfectly consistent grain size. |
| Keywords: | Austenite|Austenitic|Definitions|Determination|Ferrites|Ferritic|Grain size|Materials testing|Micrographics|Steels|Testing |
| ICS: | 77.040.99 - Otros métodos de ensayo de metales |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN ISO 643:2024 Idéntica ISO 643:2024 |
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Reemplazo Normas |
Reemplaza a DIN EN ISO 643:2020-06 Reemplaza a DIN EN ISO 643:2023-08 |
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