Notions such as "stainless steel" or "acid resistant steel" are conventional. Each grade has a top corrosion resistance level defined for the specific working conditions which depend on e.g. temperature.
AISI 304: Very popular general purpose stainless steel. Used in food industry for parts that are not in contact with food.
AISI 316: Acid resistant steel widely used in chemical, pharmaceutical and food industry with improved corrosion resistance (in comparison to AISI 304 steel).
AISI 316L: Acid resistant steel with reduced carbon content for increased intercrystalline corrosion resistance. Used especially for welding connections.