Austenitic stainless steel pickling additives DH-2011T main purposes: mainly used for austenitic stainless steel pickling additives 304,316,316 L stainless steel pickling passivation with various concentrations of nitric acid, cushion, fast Clear descaled, inhibition, suppression smoke effect, completely replace hydrofluoric acid used, while facilitating the removal of stubborn scale, particularly hot rolling, the high temperatures generated during the annealing, tempering difficult to remove oxide scale, greatly reducing the cleaning time , while preventing the generation of hydrogen embrittlement; inhibit the generation of smoke, and improve the production environment; form a uniform silvery white passivation film. Two salient features: austenitic stainless steel pickling additives accelerator, inhibitor, with fog, etc. complex from corrosion, clear welding spots with fog. Three physical and chemical indicators: project parameters appearance of white powdery solid PH (acid fog of the solid content of 1%) 7.0 99.0 99.5 4. Use: 1, usage: pickling additives with various concentrations of nitrate use, the use of nitric acid concentration is generally 10-30% (w), the use of this product concentration is usually 3-5%. 2, process: The stainless steel to be treated is soaked in the above with a good solution, at room temperature for 20-30 minutes ----- rinse ------ 3% sodium carbonate solution and -------- washing to dry five packaging specifications: plastic bags: 25 kg / bag.