Tag: titanium fasteners for bleach corrosion

Bleach Plant: Titanium vs Hastelloy C276

Q: We need bolts for a shutdown in our Bleach Plant where Chlorine Dioxide is the attacking agent. Is titanium sufficient or should we be using C276 bolts?
A: Titanium bolts are typically more than sufficient. Titanium fasteners are renowned for their resistance to chlorides and chlorines – they are practically inert to this type of media. The only time titanium shouldn’t be used is with dry chlorine gas in the absence of water which can cause it to ignite. C276 bolts will certainly work as well, but will probably be overkill in this situation.

Titanium Screws for Bleach Corrosion Resistance

Q: We are using a bleach solution as part of a medical device application and seeing some rust/corrosion? Any ideas on a fastener material that will not corrode in bleach? Chemicals used are: 5.25% Sodium hypochlorite (or 10% bleach),  70% Isopropyl alcohol and Ammonium chloride

A: You might want to consider a titanium screw. Titanium fasteners will hold up to all those chemicals without any issue or rusting that you are currently experiencing with coated steel. The steel will always have a limited life and whenever you are depending on a plating it will be prone to failures.