Dear Mr.Prakash,
stabilized heat treament is required for stablized staniless steel only, not for all SS grades.
stabilizing alloys of Like : Nb/Cb, Ti ,Zr & others are speciafiaclly added in the normal SS aloys to avoid senstitization, after solution heat treatement we don't know about whether these stabilzed alloys are setteld in grain boundry or in the core. hence to ensure the stabilized alloys in grain boundry this stabilized heat treatment is essential, as per ASTM A 182 ot ASTM A 351 this stabilized heat teratment is given as subimentary variable for forging & casting respectively. During stabilized heat treatement soaking hour to given as 4 hour (min).
Regards,
Sankaran.SP
Welding & Metallurgy expert
Coimbatore, India.
On Thursday, 22 December, 2022 at 08:53:38 am IST, 'Prakash Hegde' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Hi! Friends
Why some of the client spec ask for
Stabilizing treatment (At lower temperature than solution annealing i.e. about 900C) of already solution annealed plate but not Welded SS components
Especially 304H,347,321
Regards
Hegde
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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