Many think it’s rare to see titanium used in a knife, despite the fact that it’s the ninth most common metal found. However, it’s only rare to see a fully titanium folding knife. A titanium flipper knife may have the metal found in several small places, rather than just in the blade.
Properties of Titanium
Titanium is a durable metal that’s lighter than steel, virtually indestructible, and is not magnetic. As part of being indestructible, it cannot corrode, even in saltwater. It can withstand extreme heat and cold without damage, far more than stainless steel.
Titanium was first developed for use in airplanes, for its lightweight and flexible strength. Then, knife makers began exploring its use in knives. For example, a 100% titanium knife is perfect for divers and has been used by the military for decades.
Uses of Titanium in Knives
While fully titanium knives aren’t really seen outside of diving knives, many folding knives do have titanium parts. Fully titanium handles are fairly common, as they help make the knife more lightweight, and have no risk of rust or corrosion, unlike a stainless steel handle.
Titanium will often be seen as a coating on blades, to provide additional protection and allow them to be used more freely around water. You will often see titanium used in the opening and locking mechanisms, as those are the most fragile parts of a knife. Since they’re also the moving parts, having titanium ensures your knife will open smoothly, and significantly improve the lifespan.
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