| 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 n b) Fe 3+ n c) HF n d) emulsifiers, wetting agents, polishing agents, acid attack inhibitors; n 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. |