Excerpted from the CruisersForum discussion at: Titanium
Titanium is 40% stronger & 40% lighter than stainless steel
and most important, titanium is very corrosion resistant.
Listed below are some, but not all forms of corrosion that have virtually no effect on Titanium in a seawater environment
* Cavitation Corrosion
* Crevice Corrosion
* Electrochemical Corrosion
* Electrolytic Corrosion
* Erosion Corrosion
* Galvanic Corrosion.
For further information, including products and pricing:
Marine Hardware - Titanium, Great Advantages Over Other Hardware
Titanium Thru-Hulls: http://www.titan-marine-hardware.com...thru-hulls.htm
Titanium Hose Clamps: http://www.titan-marine-hardware.com...ose-clamps.htm
Q: I asked “Titan” what they recommended to use for Seacocks with their Titanium Thru-Hulls. I would understand their (following) answer to be an interim recommendation only.
A: Hello Gord, actually we're developing a line of Titanium Seacocks/Ball Valves that should be available mid-2005. Titanium will not corrode in seawater as you know, and other metals will still have their Galvanic corrosion issues, but not the Titanium. We would recommend using the Marelon as no corrosion issues would exist. However with composite materials the issue of melting in any fire situation exists, and you need to be careful with exposure to sunlight, as I'm told the material degrades under those conditions.
Best regards, Hugh Richards
A recent perusal of their website doesn’t reveal any Titanium Seacocks - they must be “a little” behind schedule in introducing them.