Pardon the tangent, but here's a quote from their website:
> There’s a reason titanium is used to build rockets and replace bones. Unlike aluminum, which is what most phones are made of, titanium doesn’t scratch, dent, or bend.
The reason why titanium is used to replace bones is not its strength (though it certainly doesn't hurt). It's because titanium is the most biocompatible metal and has a capacity for osseointegration. Meaning the bone around it will fuse with the titanium.
> There’s a reason titanium is used to build rockets and replace bones. Unlike aluminum, which is what most phones are made of, titanium doesn’t scratch, dent, or bend.
The reason why titanium is used to replace bones is not its strength (though it certainly doesn't hurt). It's because titanium is the most biocompatible metal and has a capacity for osseointegration. Meaning the bone around it will fuse with the titanium.