It depends on the settings, apparently. They go up to 15, but 7 is supposedly strong enough to detect small metallic items and whatnot. Pure, alpha-grade titanium is totally non-magnetic. 6Al4V titanium alloy contains 6% aluminum and 4% vanadium -- both non-magnetic elements as well, so it didn't make sense. Apparently, however, 6Al4V Ti also contains 0.25% Iron. That was a surprise. That's the maximum amount you'll find, however, so it probably won't set off most metal detectors set at 7 or less, but more stringent security might set it off. This was all news to me... I guess wrapping your knives in tinfoil's always an option, as long as it's pure tin. It's also perfect when you're lining your baseball caps, for obvious reasons.

.