NF ISO 20431, A02-053 (07/2023)

This document defines the quality requirements and recommendations applicable to the heat treatment of mechanical parts intended for use in industry (e.g. automotive manufacturing, aerospace, pipeline systems, civil engineering equipment, earth moving machinery, equipment agricultural, naval industry, energy equipment, tools, fasteners). This document constitutes a reference for carrying out quality audits and audits of integrated or subcontracted heat treatment installations. This document can also serve as a basis for discussion and the development of specifications. A description of equipment calibration and frequency of checks is given in Annex A. An example of a rating table is given in Annex B. An example of an audit report is given in Appendix C. The different methods of monitoring measuring chains (SAT) are presented in Appendix D.
(Automatic translation from French)