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.
Status: PublishedPublication date: 2020-12
Edition: 1Number of pages: 22
Technical Committee: ISO/TC 17/SC 4 Heat treatable and alloy steels
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