Titanium 6/4 - aircraft grade
titanium
Titanium 6/4 (Ti-6/4) consists of 90% titanium, 6% aluminum and 4%
vanadium. It is much harder than basic grade (CP) titanium, not to
mention other jewelry metals. Aircraft grade titanium will also resist
wearing to a much greater extent.
Titanium 6/6/2 - extra-hard titanium
Titanium 6/6/2 (Ti-6/6/2) consists of 86% titanium, 6% aluminum, 6%
vanadium and 2% tin. This is the strongest titanium alloy on the jewelry
market. It is 130% stronger than Ti-6/4, making it the best choice for
tension set titanium rings. Extra-hard titanium offers the highest
resistance to denting and bending.
This grade of titanium is very difficult to work with
and not many jewelers offer it as an option for rings.
Commercial pure titanium, grade 4
Although softer than Aircraft Grade titanium, commercial pure titanium
(CP), grade 4 is nevertheless much superior strength wise to traditional
jewelry metals such as gold, silver, and platinum. CP titanium is often
used in rings that have diamonds or gemstones flush set into the
titanium.
