The corrosion resistance of flexible hose stainless steel 316 is much better than that of 304. The more important point is that molybdenum metal is added to 316, which has improved heat resistance.
Stainless steel 304 raw material composition is OCr18Ni9; Stainless steel 316 composition is 0Cr17Ni12Mo2. The main difference is that 316 has 2-3 more nickels than 304, and 2% more Mo.
First of all, stainless steel 316 contains Mo, which is better than stainless steel 304 in high temperature environment. So in high temperature environment, engineers generally choose 316.
Secondly, 316 mainly reduces the Cr content and increases the Ni content and increases Mo2%~3%. Therefore, its corrosion resistance is stronger than 304, suitable for use in chemical, seawater and other environments. Similarly, the cost of 316 is also higher than 304. Generally, flexible hose stainless steel 316 is used in places where the requirements are relatively high, instead of 304.
