EN ISO 643:2012
(Main)Steels - Micrographic determination of the apparent grain size (ISO 643:2012)
Steels - Micrographic determination of the apparent grain size (ISO 643:2012)
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.
Stahl - Mikrophotographische Bestimmung der erkennbaren Korngröße (ISO 643:2012)
Diese Internationale Norm legt mikrophotographische Verfahren zur Bestimmung der erkennbaren Ferrit oder Austenitkorngröße von Stählen fest. Es werden Verfahren zum Sichtbarmachen der Korngrenzen und zur Schätzung der mittleren Korngröße von Proben mit einer gleichmäßigen Größenverteilung beschrieben. Obwohl die Körner dreidimensional sind, können sie durch eine metallographische Schnittebene von einem beliebigen Punkt am Rand eines Korns bis einschließlich durch seinen maximalen Durchmesser so durchschnitten werden, dass auch in einer Probe mit vollständig übereinstimmender Korngröße in der zweidimensionalen Ebene eine erkennbare Korngröße erzeugt wird.
Aciers - Détermination micrographique de la grosseur de grain apparente (ISO 643:2012)
L'ISO 643:2012 spécifie une méthode de détermination micrographique de la grosseur apparente du grain ferritique ou austénitique des aciers. Elle décrit les méthodes de mise en évidence des joints de grains et d'estimation de la grosseur moyenne de grain d'un échantillon ayant une distribution granulométrique unimodale. Bien que les grains soient de forme tridimensionnelle, le plan de la préparation métallographique peut couper un grain en tout point, passant par un coin du grain ou au travers du diamètre maximal du grain ou entre les deux, produisant de ce fait une gamme de grosseurs de grain apparentes sur le plan bidimensionnel, même dans le cas d'un échantillon présentant une grosseur de grain parfaitement cohérente.
Jekla - Mikrografsko določevanje navidezne velikosti kristalnih zrn (ISO 643:2012)
Ta mednarodni standard podaja mikrografsko metodo za določevanje navidezne velikosti feritnih in avsteritnih kristalnih zrn v jeklu. Opisuje metode za odkrivanje mej kristalnih zrn in ocenjevanje povprečne velikosti kristalnih zrn primerkov z enomodalno razporeditvijo velikosti. Čeprav so kristalna zrna tridimenzionalne oblike, lahko plošča za metalografski prerez v kateri koli točki prereže zrno od kota zrna do največjega prereza in tako na dvodimenzionalni plošči naredi nabor navideznih velikosti kristalnih zrn. To velja tudi za vzorce, ki imajo popolnoma skladno velikost zrna.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 643:2013
01-junij-2013
1DGRPHãþD
SIST EN ISO 643:2004
-HNOD0LNURJUDIVNRGRORþHYDQMHQDYLGH]QHYHOLNRVWLNULVWDOQLK]UQ ,62
Steels - Micrographic determination of the apparent grain size (ISO 643:2012)
Stahl - Mikrophotographische Bestimmung der scheinbaren Korngröße (ISO 643:2012)
Aciers - Détermination micrographique de la grosseur de grain apparente (ISO
643:2012)
Ta slovenski standard je istoveten z: EN ISO 643:2012
ICS:
77.040.99 Druge metode za Other methods of testing of
preskušanje kovin metals
77.080.20 Jekla Steels
SIST EN ISO 643:2013 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 643:2013
---------------------- Page: 2 ----------------------
SIST EN ISO 643:2013
EUROPEAN STANDARD
EN ISO 643
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2012
ICS 77.040.99 Supersedes EN ISO 643:2003
English Version
Steels - Micrographic determination of the apparent grain size
(ISO 643:2012)
Aciers - Détermination micrographique de la grosseur de Stahl - Mikrophotographische Bestimmung der scheinbaren
grain apparente (ISO 643:2012) Korngröße (ISO 643:2012)
This European Standard was approved by CEN on 10 December 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 643:2012: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 643:2013
EN ISO 643:2012 (E)
Contents Page
Foreword . 3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 643:2013
EN ISO 643:2012 (E)
Foreword
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.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn at
the latest by June 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 643:2003.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 643:2012 has been approved by CEN as a EN ISO 643:2012 without any modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 643:2013
---------------------- Page: 6 ----------------------
SIST EN ISO 643:2013
INTERNATIONAL ISO
STANDARD 643
Third edition
2012-12-15
Steels — Micrographic determination of
the apparent grain size
Aciers — Détermination micrographique de la grosseur de grain
apparente
Reference number
ISO 643:2012(E)
©
ISO 2012
---------------------- Page: 7 ---------------
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.