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Norm

ÖNORM EN ISO 643

Issue date: 2003 09 01

Steels - Micrographic determination of the apparent grain size (ISO 643:2003)

This International Standard specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing gr...
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Withdrawn : 2013 06 01
Publisher:
Austrian Standards International
Format:
Digital | 41 Pages
Language:
German | English | Download GER/ENG
Currently valid:
ÖNORM EN ISO 643:2020 06 01
Optionally co-design standards:
Committee 021: Iron and steel
ICS
77.040.99 77.080.20
Topics
Mechanical engineering foundations & materials, Ferrous metals, ferroalloys and powder metallurgy, Steels Mechanical engineering foundations & materials, Testing of metals, Other methods of testing of metals
This International Standard 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)
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Issue date : 1976 12 01
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ISO 14250:2000
Issue date : 2000 11 02
Steel — Metallographic characterization of duplex grain size and distributions
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ASTM E 112
Issue date : 2021 09 01
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ÖNORM EN ISO 643
Issue date : 2013 06 01
Steels - Micrographic determination of the apparent grain size (ISO 643:2012)
Norm
ISO 643:2003
Issue date : 2003 02 06
Steels — Micrographic determination of the apparent grain size