Will a tempering salt pot cause decarb?



I'm about to kick on my first salt pot. Its a knife size salt pot and
i will use it to temper / austemper many alloys including: 4130, CPM
S30V, CPM 52100, 154 CM..

Is there a risk of decarburization in the salt bath? I'm considering
adding a small amount of carbon particles and or carbon jewelry
stirring rods..

Thanks.

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