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Homepage>BS Standards>77 METALLURGY>77.140 Iron and steel products>77.140.10 Heat-treatable steels>BS ISO 23825:2020 Method for evaluating the nodularity of spheroidal carbides. Steels for cold heading and cold extruding
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immediate downloadReleased: 2021-01-08
BS ISO 23825:2020 Method for evaluating the nodularity of spheroidal carbides. Steels for cold heading and cold extruding

BS ISO 23825:2020

Method for evaluating the nodularity of spheroidal carbides. Steels for cold heading and cold extruding

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Standard number:BS ISO 23825:2020
Pages:32
Released: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.