Explanation

Reductive acid resistant steel is a kind of stainless steel with good corrosion resistance, especially in the medium of reducing acid (such as dilute sulfuric acid, hydrochloric acid, phosphoric acid, etc.). The main alloy elements of this type of stainless steel usually include chromium, molybdenum and copper. The addition of molybdenum can significantly improve the resistance of stainless steel to organic acids, reducing acids, especially to pitting corrosion caused by chloride ions. In addition, adding 2% to 3% copper to austenilic stainless steel can significantly improve its corrosion resistance in sulfuric acid, sulfite and hydrochloric acid.

Classification