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sklademVydáno: 2021-01-08
BS ISO 23825:2020
Method for evaluating the nodularity of spheroidal carbides. Steels for cold heading and cold extruding
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| Označení normy: | BS ISO 23825:2020 |
| Počet stran: | 32 |
| Vydáno: | 2021-01-08 |
| ISBN: | 978 0 539 13124 6 |
| Status: | Standard |
DESCRIPTION
BS ISO 23825:2020
This standard BS ISO 23825:2020 Method for evaluating the nodularity of spheroidal carbides. Steels for cold heading and cold extruding is classified in these ICS categories:
- 77.140.10 Heat-treatable steels
This document specifies a micrographic method based on comparison charts for determining the degree of spheroidisation of carbides after annealing of wire rod, wire or bars made of non-alloy and low alloy steels intended for cold heading and cold extrusion. The range of carbon content is up to 1,20 % C.
In addition, Annex A includes a method based on machine vision for routine measurements.