I recently bought myself a small collection of Abus Titalium locks. The name suggests that these are made from or at least contain titanium but as far as I can tell that isn’t the case. From the weight I assume they are made of aluminium.
I have teh 64TI/50, 80TI/45 and the 80TI/50. The two 80TI locks are green belt and the 64TI is orange belt. Initial impressions are that the 64TI should be quite easy to pick, the tow 80TI locks look like they’ll be a bit tougher. I bought these as a set off eBay for £15. That’s probably a little more than I should have paid but it meant I could get all three at the same time.