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Norm
ISO 643:2003
Ausgabedatum: 2003 02 06
Steels — Micrographic determination of the apparent grain size
ISO 643 specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries and of...
ZURÜCKGEZOGEN: 2012 12 10
Herausgeber:
International Organization for Standardization
Format:
Digital | 35 Seiten
Sprache:
Englisch
Aktuell Gültig:
ICS
ISO 643 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.
ISO 643:2019
2019 12 12
Steels — Micrographic determination of the apparent grain size (Corrected version 2020-03)
Norm
ISO 643:1983
1983 09 01
Steels — Micrographic determination of the ferritic or austenitic grain size
Norm
Norm
Ausgabedatum :
2012 12 10
Steels — Micrographic determination of the apparent grain size
