This document defines important terms used in the heat treatment of ferrous materials .
NOTE The term ferrous materials include products and workpieces ofsteel and castiron.
Annex A provides an alphabetical lis t of terms defined in this document, as well as their equivalents in French, German, Chinese and Japanese.
Table 1 shows the various iron-carbon (Fe-C) phases.
ISO 4885:2017 Referenced Document
ISO 15787:2016 Technical product documentation - Heat-treated ferrous parts - Presentation and indications
ISO 18203:2016 Steel - Determination of the thickness of surface-hardened layers
ISO 2639:2002 Steels - Determination and verification of the depth of carburized and hardened cases
ISO 3754:1976 Steel; Determination of effective depth of hardening after flame or induction hardening
ISO 3887:2003 Steels - Determination of depth of decarburization
ISO 4948-1:1982 Steels; Classification; Part 1 : Classification of steels into unalloyed and alloy steels based on chemical composition
ISO 4948-2:1981 Steels; Classification; Part 2 : Classification of unalloyed and alloy steels according to main quality classes and main property or application characteristics
ISO 642:1999 Steel - Hardenability test by end quenching (Jominy test)
ISO 643:2012 Steels - Micrographic determination of the apparent grain size
ISO 683-1:2016 Heat-treatable steels, alloy steels and free-cutting steels - Part 1: Non-alloy steels for quenching and tempering
ISO 683-2:2016 Heat-treatable steels, alloy steels and free-cutting steels - Part 2: Alloy steels for quenching and tempering