Stainless steel plate refers to alloy steel plates with a smooth surface, high plasticity, toughness, and mechanical strength, and resistance to corrosion by acid, alkaline gases, solutions, and other media. Its core characteristic lies in its "stainlessness", which means it is resistant to corrosion by weak media such as atmospheric air, steam, and water. Acid-resistant steel plates, on the other hand, refer to steel plates that are resistant to corrosion by chemical erosive media such as acids, alkalis, and salts.