GB/T 31935-2015: Corrosion of Metals and Alloys - Corrosion Test for Intergranular Corrosion Susceptibility of Low-Cr Ferritic Stainless Steel

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Scope

This Standard specifies the specimen, test instrument and test equipment, test solution,
test conditions and procedure, test result assessment and test report of corrosion test
for intergranular corrosion susceptibility of low-cr ferritic stainless steel.
This Standard is applicable to inspect the low-cr ferritic stainless steel (generally the
chromium content is less than 16%) in the weakly oxidizing corrosive media by the
sulfuric acid-copper sulfate corrosion test.

Basic Data

Standard ID	GB/T 31935-2015 (GB/T31935-2015)
Description (Translated English)	Corrosion of Metals and Alloys - Corrosion Test for Intergranular Corrosion Susceptibility of Low-Cr Ferritic Stainless Steel
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H25
Classification of International Standard	77.010
Word Count Estimation	8,857
Date of Issue	2015-09-11
Date of Implementation	2016-06-01
Quoted Standard	GB/T 5231; GB/T 625; GB/T 665
Regulation (derived from)	National Standard Announcement 2015 No.25
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies samples, test equipment and test equipment, test solutions, test conditions and procedures, test results evaluation and test reports for the intergranular corrosion test method for low chromium ferritic stainless steels. This standard applies to the sulfuric acid-copper sulfate corrosion test for low chromium ferritic stainless steels (usually less than 16% chromium) in weakly oxidizing corrosive media.