Stainless Steel 304

Comparison Stainless Steel 304 vs 316

The two most common stainless-steel grades are 304 and 316. The key difference is the addition of molybdenum, an alloy which drastically enhances corrosion resistance, especially for more saline or chloride-exposed environments. 316 stainless-steel contains molybdenum. 304 stainless-steel does not. Stainless steel can also be safely pressed onto copper without the need for a transition fitting.