bagnamento
Nuclear
According to ASME Code, section II, SA 240, heat treatment of material shall be in accordance with SA 480.
In the case of austenitic stainless steels, the material shall be solution annealed.
For Type 321 Ti-stabilized stainless steel, section 15.2.3 of SA 480 states that a stabilization anneal may be used in case solution a nealing temperature is higher than 1950°F and the steel is subsequently exposed to sensitizing conditions.
If this is not the case, it appears that AISI 321 stainless steel can be purchased in the solution annealed condition (no stabilization).
According to ASM Handbooks Type 321 stainless steel is to be given stabilization HT only if in contact with highly corrosive media.
Is this correct?
How would the steel be stabilized and resist to intergranular corrosion if it solution annealing isn't followe by stabilization, i.e. no specific heat treatment for Ti-carbides precipitation is applied?
In the case of austenitic stainless steels, the material shall be solution annealed.
For Type 321 Ti-stabilized stainless steel, section 15.2.3 of SA 480 states that a stabilization anneal may be used in case solution a nealing temperature is higher than 1950°F and the steel is subsequently exposed to sensitizing conditions.
If this is not the case, it appears that AISI 321 stainless steel can be purchased in the solution annealed condition (no stabilization).
According to ASM Handbooks Type 321 stainless steel is to be given stabilization HT only if in contact with highly corrosive media.
Is this correct?
How would the steel be stabilized and resist to intergranular corrosion if it solution annealing isn't followe by stabilization, i.e. no specific heat treatment for Ti-carbides precipitation is applied?