Marine grade stainless

Marine grade stainless alloys typically contain molybdenum to resist the corrosive effects of NaCl or salt in seawater.

[1] The fact that it is negligibly responsive to magnetic fields means that it can be used in applications where a non-magnetic metal is required.

While 316 is not completely rust-proof, the alloy is more corrosion resistant than other common stainless steels.

[3] There is no industry recognized definition for a marine grade stainless steel, even though the phrase is routinely used by many end-users.

[8] Nitronic 60 is an example of a non-molybdenum grade performing well in seawater, being more resistant to pitting in sea water than 316 due to high levels of Si and N; the N also increases the yield strength.