SR EN ISO 18203:2026

Steel - Determination of the thickness of surface-hardened layers (ISO 18203:2026)

This document specifies a method of measuring the case hardening depth, surface hardening depth, nitriding hardness depth and total thickness of surface hardening depth obtained using, e.g. thermal (flame and induction hardening, electron beam hardening, laser beam hardening, etc.) or thermochemical (carbonitriding, carburizing and hardening, hardening and nitriding, etc.) treatment.

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General information

Status : Valid
Approval date : 3/31/2026
Number of pages : 24
ICS : 77.040.99 Other methods of testing of metals
Technical Committee : 42 - Steels and ferroalloy

Relations with other standards:

Replaces SR EN ISO 18203:2022