GB/T 36174-2018 (English Version) PDF

Standard No.: GB/T 36174-2018
Language: Chinese, Available in English version
Release Date: 2018
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 36174-2018

Scope: This standard specifies the test method for the resistance to intergranular corrosion of solution heat-treated aluminum alloys without a protective layer. The susceptibility of solution heat-treated aluminum alloys to intergranular corrosion is a function of the alloy's chemical composition, production method, solution heat treatment, quenching treatment, and precipitation hardening (aging) treatment. Under natural aging conditions, the susceptibility to intergranular corrosion of solution heat-treated aluminum alloys is mainly a function of the cooling rate during quenching in the critical temperature range. This standard applies to cast and wrought heat-treated aluminum alloys for castings, forgings, plates, sheets, profiles, and semi-finished or finished parts. It is suitable for grade evaluation of alloys of different grades and thicknesses and detection of material heat treatment quality based on different chemical compositions and other factors. The test results give information to determine the resistance of the material to intergranular corrosion and the quality of the heat treatment. The test results are not absolute as they are not applicable to all service environments. These test results are more suitable for comparing the intergranular corrosion resistance of solution heat-treated aluminum alloys at different heat treatment temperatures.

GB/T 36174-2018 Referenced Document

GB/T 10123-2001 Corrosion of metals and alloys Basic terms and definitions
GB/T 16545-2015 Corrosion of metals and alloys.Removal of corrosion products from corrosion test specimens
GB/T 6682-2008 Water for analytical laboratory use.Specification and test methods

2018 GB/T 36174-2018 Corrosion of metals and alloys.Determination of resistance to intergranular corrosion of solution heat-treatable aluminium alloys