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SSH EN ISO 643:2012

Steels - Micrographic determination of the apparent grain size (ISO 643:2012)

Sep 30, 2013

General information

60.60     Sep 30, 2013

DPS

DPS/KT 133

European Norm

77.040.99  

English  

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Scope

ISO 643:2012 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.

Life cycle

PREVIOUSLY

WITHDRAWN
SSH EN ISO 643:2003

NOW

PUBLISHED
SSH EN ISO 643:2012
60.60 Standard published
Sep 30, 2013

Related project

Adopted from EN ISO 643:2012