EN ISO 643:2020
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected version 2023-11)
31-07-2020
15-01-2020
This document 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.
Committee |
CEN/TC 459/SC 1
|
DocumentType |
Standard
|
PublisherName |
Comite Europeen de Normalisation
|
Status |
Withdrawn
|
Supersedes |
Standards | Relationship |
ISO 643:2019 | Identical |
DIN EN ISO 643:2020-06 | Identical |
NEN-EN-ISO 643:2020 (Cor. 2020-08) | Identical |
NF EN ISO 643 : 2020 | Identical |
UNI EN ISO 643:2020 | Identical |
BS EN ISO 643:2020 | Identical |
NS-EN ISO 643:2020 | Identical |
I.S. EN ISO 643:2020 | Identical |
ÖNORM EN ISO 643:2020 06 01 | Identical |
UNE-EN ISO 643:2020 | Identical |
DS/EN ISO 643:2020 | Identical |
I.S. EN ISO 643:2020&LC:2020 | Identical |
PN-EN ISO 643:2020-07 | Identical |
ASD-STAN prEN 4500-004 P3:2023 | Aerospace series Metallic materials — Rules for drafting and presentation of material standards — Part 004: Specific rules for titanium and titanium alloys |
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