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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 ISO 4212:2023

Publication date:   Feb 8, 2023

General information

60.60 Standard published   Feb 8, 2023

ISO

ISO/TC 156 Corrosion of metals and alloys

International Standard

77.060   Corrosion of metals

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Scope

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 “etching”) on austenitic stainless steel in an oxalic acid solution.

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PUBLISHED
ISO 4212:2023
60.60 Standard published
Feb 8, 2023