Well I'd think that in an allout beating to failure a theck frame lock would last a little longer...
The cut out in the lock bar of most Ti RIL's (Reeve Integral Lock) means the total load that the lock can take is greatly reduced. Not to mention Ti is a very soft metal compared to steel. STR has reported a few lockbars that just plain shear in half at the contact point (when the lock only engages half way). The advantage is reliability, not strength.
Which reminds me...
I've been using my Kershaw Composite blade JYD II for all the things you're
not supposed to use a knife for over the past year, and it's held up quite admirably. The knife excels at cutting sheet metal with its utility sheepsfoot blade. The CPM D-2 edge only chips on hard impacts. When I cut a hole in sheet metal I do a lot of twisting, just to see how the knife handles it. Where my S30V Spyderco Chinook 3 does nothing but chip out, the JYD II doesn't flinch, and I've done some hard scraping on metal too.
The worst thing I've done with the knife is try to force a metal plate off some machinery. One plate was smaller, sitting on top of the other, so sliding the tip along the bigger plate I stabbed at the space between as hard as I could. Knowing full well that the lock could fail I did my best to be careful of the direction of forces being applied to the knife (and I was wearing gloves). After getting a 1/16" space, I realized the plate was bolted on (1/4" bolts). How did the lock handle it? Once again, the knife didn't flinch. Lockup was barely affected, and the knife didn't develop any significant play either.
Not that I would recommend anyone else trying that.
The G-10 Tyrade is pretty much a beefed up JYD II. So if you want something that should hold up just as well, but do a little better in prying, that's what I would get. If you want the up-scale version, there's the ZT0200. The advantage of the 0200 is the super nice handle and super beefy pivot pin, though the 154CM blade probably wouldn't hold up as well as the CPM D-2 edge of the JYD II and G-10 Tyrade.