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Standard 2013-05

DIN EN ISO 643:2013-05

Steels - Micrographic determination of the apparent grain size (ISO 643:2012); German version EN ISO 643:2012

German title
Stahl - Mikrophotographische Bestimmung der erkennbaren Korngröße (ISO 643:2012); Deutsche Fassung EN ISO 643:2012
Publication date
2013-05
Original language
German

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Publication date
2013-05
Original language
German
DOI
https://dx.doi.org/10.31030/1941325

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Overview

This document (EN ISO 643:2012) has been prepared by Technical Committee ISO/TC 17 "Steel" in collaboration with Technical Committee ECISS/TC 101 "Test methods for steel (other than chemical analysis)", the secretariat of which is held by AFNOR. The responsible German committee is Joint Working Committee NA 062-01-31 GA "Gemeinschaftsarbeitsausschuss NMP/FES: Metallographische Prüfverfahren" ("Joint working committee NMP/FES: Metallographical test methods") of the Materials Testing Standards Committee (NMP) at DIN. 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.

Content
DOI
https://dx.doi.org/10.31030/1941325
Amendments

Replaces DIN EN ISO 643 Berichtigung 1:2004-07 , DIN EN ISO 643:2003-09 .

Intended replacement to be replaced as of 2020-06 with: DIN EN ISO 643:2020-06 .

To be replaced by: DIN EN ISO 643:2020-06 .

Document timeline
PRE-PUBLISHED
2020-06

Standard [AVAILABLE PRE-PUBLICATION]

Drafts
2017-09 - 2020-06
intended to be withdrawn
2013-05 - 2020-06

Standard

DIN EN ISO 643:2013-05

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