ISO 23825:2020

Method for evaluating the nodularity of spheroidal carbides — Steels for cold heading and cold extruding ISO 23825:2020

Publication date:   Dec 23, 2020

General information

90.60   Close of review   Mar 5, 2026

ISO

ISO/TC 17/SC 4 Heat treatable and alloy steels

International Standard

77.140.10   Heat-treatable steels

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Scope

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.

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PUBLISHED
ISO 23825:2020
90.60 Close of review
Mar 5, 2026




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