I am currently working on the austenitization and inter-critical annealing process of low carbon steels at roughly 650 °C - 1000 °C. I have no prior experience with hot salt baths. I am getting used to working with the bath and taking the necessary safety measurements (face shield and respirator mask). As long as I measured, there is a little temperature (+4/-4) gradient in different regions of the bath. The bath consists of BaCl2 based salt. The pot was made of 304 L stainless steel. It has a wall thickness of 5 mm and the volume is about 15 L.
I would highly appreciate it if you kindly gave me some tips and recommendations.