ISO 643:2012
Withdrawn
View Superseded by
Steels — Micrographic determination of the apparent grain size
Hardcopy , PDF
English, French
12-10-2012
04-09-2025
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.
| Committee |
ISO/TC 17/SC 7
|
| DevelopmentNote |
DRAFT ISO/DIS 643 is also available for this standard. (06/2017)
|
| DocumentType |
Standard
|
| Pages |
35
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| PN EN ISO 643 : 2013 | Identical |
| NF EN ISO 643 : 2013 | Identical |
| I.S. EN ISO 643:2012 | Identical |
| GOST R ISO 643 : 2015 | Identical |
| DIN EN ISO 643:2015-06 (Draft) | Identical |
| NS EN ISO 643 : 2012 | Identical |
| NEN EN ISO 643 : 2013 | Identical |
| BS EN ISO 643:2012 | Identical |
| EN ISO 643:2012 | Identical |
| NBN EN ISO 643 : 2013 | Identical |
| SS-EN ISO 643:2013 | Identical |
| DS EN ISO 643 : 2013 | Identical |
| NFA 04 102 : 1980 | Similar to |
| UNE-EN ISO 643:2013 | Identical |
| BS 4490:1989 | Similar to |
| UNE 7280:1972 | Identical |
| BIS IS 4748 : 2009 | Identical |
| DIN 50601:1985-08 | Corresponds |
A newer version of this standard is available.
Please Login or Create an Account so you can add users to your Multi user PDF Later.
Important note : All end users must be registered with an Account prior to user licenses being assigned.
Users cannot be edited or removed once added to your Multi user PDF.