have a look at the mymat filaments. http://www.mymatsolutions.com/
Cost a bit more - but way better than the 680.
here we go - glass transition on the 680 is 93c.
So probably not suitable for autoclave. I suppose you could set it to 80c.
http://taulman3d.com/nylon-680-spec.html

I think some of the mymat stuff goes past 110c - and is hospital certified (or whatever it's called).

The 680 actually prints pretty good - for nylon - you'll always get a fair bit of stringing. But it doesn't warp as much as most nylon.
The mymat nylons don't warp at all !
Amazing stuff.