The most common stainless steel grades are 316 and 304. Although the mechanical properties of both grades are comparable, their chemical compositions are distinctive. Type 316 stainless steel contains more nickel and includes molybdenum. Stainless steel 304 doesn’t contain molybdenum. The more significant amounts of nickel and molybdenum mean Grade 316 stainless steel has better chemical resilience than Type 304 stainless steel. It also has a heightened resistance to acids and chlorides, including salt, which makes 316 stainless steel perfect for environments with consistent moisture exposure.