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Norm
ÖNORM EN ISO 643
Issue date: 2020 06 01
Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected version 2020-03)
This document specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries ...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 29 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
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.
ÖNORM EN ISO 643
2020 06 01
Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected version 2020...
Norm
↖
ÖNORM EN ISO 643
2013 06 01
Steels - Micrographic determination of the apparent grain size (ISO 643:2012)
Norm
ÖNORM EN ISO 643
2003 09 01
Steels - Micrographic determination of the apparent grain size (ISO 643:2003)
Norm
Norm
Issue date :
2019 12 12
Steels — Micrographic determination of the apparent grain size (Corrected version 2020-03)
