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Titanium &Hastelloy C vs 316 SS

Titanium &Hastelloy C vs 316 SS

Titanium &Hastelloy C vs 316 SS

what are the common application fluids that would suggest use of these alloys over 316 stainless steel?, applied in a plate & frame heat exchanger

RE: Titanium &Hastelloy C vs 316 SS

A common application would be sea water.  There are many other services where chlorides would cause stress cracking of 316SS.  Other possible fluids are bleach (sodium hypochlorite), wet HCl, or wet chlorine.

RE: Titanium &Hastelloy C vs 316 SS


Try the following links...



As you probably know... everthing boils down to time and money. 316L can be used in a lot of (relatively) short-lived applications.... not everthing has to last 30 years or more. Titanium sheet is great for any application that has chlorides and requires large areas to function ( i.e. plate-frame heat exchangers, for example)

My own, limited experience is that Hastelloy C is used as a last resort..... where simply nothing else will work, or anything else must be replaced too often. Remember, repeated, frequent replacement of (cheaper)metallic components still can be the best course of action..................................MJC

RE: Titanium &Hastelloy C vs 316 SS

I would suggest that you find a copy of:  Philip A. Schweitzer, "Corrosion Resistance Tables, Second Edition (or later)," Marcel Dekker (New York, 1986).  It has about 1225 pages of data on those metals (and others) in corrodants from Acetaldehyde to Zinc Sulfate as a function of concentration and temperature.

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