Stress corrosion issues in stainless steel
Thread Content
In what medium environments is stress corrosion a concern for stainless steel S32168? Is there a source? GB150 specifies in the materials section that stress corrosion shall be tested in accordance with relevant standards, and it mentions in the manufacturing heat treatment section that stress corrosion requirements shall be indicated in the drawings! What is certain at present is that stress corrosion occurs in an environment with Cl ions; what about in a NaOH solution? Help, Haiyou! ! Thank you!
Based on the following standards: GB/T 30579-2014 Identification of damage modes in pressure equipment; HG/T 20581-2011 Specifications for the selection of materials for steel chemical containers; SH/T 3075-2009 Specifications for the selection of materials for steel pressure vessels in the petrochemical industry; GB/T 15970.1-1995 Corrosion of metals and alloys – Stress corrosion testing – Part 1: General principles for test methods; GB/T 15970.2-2000 Corrosion of metals and alloys – Stress corrosion testing – Part 2: Preparation and use of bent beam specimens; GB/T 15970.3-1995 Corrosion of metals and alloys – Stress corrosion testing – Part 3: Preparation and use of U-bend specimens; GB/T 15970.4-2000 Corrosion of metals and alloys – Stress corrosion testing – Part 4: Preparation and use of uniaxially loaded tensile specimens; GB/T 15970.5-1995 Corrosion of metals and alloys – Stress corrosion testing – Part 5: Preparation and use of C-ring specimens; GB/T 15970.6-1995 Corrosion of metals and alloys – Stress corrosion testing – Part 6: Preparation and use of pre-cracked specimens; GB/T 15970.7-2000 Corrosion of metals and alloys – Stress corrosion testing – Part 7: Slow strain rate testing; GB/T 15970.8-2005 Corrosion of metals and alloys – Stress corrosion testing – Part 8: Preparation and use of welded specimens; GB/T 15970.9-2007 Corrosion of metals and alloys – Stress corrosion testing – Part 9: Preparation and use of pre-cracked specimens under gradually increasing load or displacement
Thank you so much! I’m already looking at the damage recognition criteria!