Titanium Bolts Trump Monel for Intense Chloride Applications

Q: Since Monel is resistant to NaCl does that mean it can handle a strong chloride situation?

A: Monel is resistant to chlorides but, for strong chlorides your best bet is to use Titanium screws. Titanium fasteners are almost inert to all chlorine and chloride environments due to the fact that it can rapidly regenerate its protective passive layer in the presence of oxygen. However, be careful NOT to use titanium in dry chlorine gas environments unless there is at least 1-1.5% water present. Alone, titanium screws can rapidly corrode and even ignite in the presence of chlorine gas due to the fact that it has no oxygen to regenerate its passive layer.

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