This one's been with me for 11 years now and it will likely be sharp long after I'm not.
Here, I had just gone through a bunch of stuff for a big batch of chili.
The acidic juices from the tomatoes etched it quickly, but any sort of patina never stays after splitting a few logs.
It's big and heavy, but it's my goto around the yard and car camping.
This is my most used big knife, what's yours?
This one is 16.5", 30oz of steel from a truck leaf spring, so likely 5160. It's differentially hardened so it keeps an edge, but the blade can take a beating.
With a 3/8" spine and a full tang, it's not indestructible, but close enough.
Somewhere between an ax and a knife.