ISO 643:2024
Current
The latest, up-to-date edition.
Steels — Micrographic determination of the apparent grain size
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English, French
22-08-2024
Important note : Users cannot be edited or removed once added to your Multi user PDF.
This document specifies micrographic methods 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
|
| DocumentType |
Standard
|
| Pages |
46
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| DS/ISO 643:2024 | Identical |
| DS/EN ISO 643:2024 | Identical |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.