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Norm

ISO 643:2012

Ausgabedatum: 2012 12 10

Steels — Micrographic determination of the apparent grain size

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 a...

ZURÜCKGEZOGEN : 2019 12 12

Herausgeber:

International Organization for Standardization

Format:

Digital | 35 Seiten

Sprache:

Englisch

Aktuell Gültig:

ISO 643:2019:2019 12 12

ICS

77.040.99

Fachgebiete

Mechanical engineering foundations & materials, Testing of metals, Other methods of testing of metals

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.

ISO 643:2019

2019 12 12

Steels — Micrographic determination of the apparent grain size (Corrected version 2020-03)

Norm

ISO 643:2012

2012 12 10

Steels — Micrographic determination of the apparent grain size

Norm

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ISO 643:2003

2003 02 06

Steels — Micrographic determination of the apparent grain size