ISO 4212:2023

Current Revision
Corrosion of metals and alloys - Method of oxalic acid etching test for intergranular corrosion of austenitic stainless steel

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ISO 4212:2023

Corrosion of metals and alloys - Method of oxalic acid etching test for intergranular corrosion of austenitic stainless steel

PUBLISH DATE 2023
ISO 4212:2023

This document specifies a method to test for intergranular corrosion (IGC) in austenitic stainless steels using an oxalic acid etch.

This method can evaluate non-sensitization of austenitic stainless steels by observing the structure of the etched surface with a microscope after performing electrolytic etching (hereinafter called Β“etchingΒ”) on austenitic stainless steel in an oxalic acid solution.

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