| abstract |
Process for stainless steel pickling consisting in placing the material to be treated in a bath kept at a temperature ranging from 30°C to 70°C and containing:n a) H 2 SO 4 b) Fe 3+ c) HF d) emulsifiers, wetting agents, polishing agents, acid attack inhibitors; the bath being kept under agitation with:n - an air flow and continuously fed with a quantity of oxidizing agent adjusted to the bath redox potential to be kept at 250 mV min. |