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ISO 20198

Metallic materials — Steel — Method of test for the determination of brittle crack arrest temperature (CAT)

General information

Current stage: 60.00 Effective date: Apr 17, 2026

Originator: ISO

Owner: ISO/TC 164/SC 4

Type: International Standard

ICS: 77.040.10

Scope

This document is applicable to the determination of brittle crack arrest temperature(CAT) of rolled steel plates with thickness not greater than 200 mm.
This standard specifies the requirements for test method and test procedures when using the isothermal crack arrest test to judge a valid test result under isothermal conditions and in order to determine the crack arrest temperature.

Life cycle

NOW

PROJECT
ISO 20198
60.00 Standard under publication
Apr 17, 2026