Here is AKS 1/8" 15N20
https://www.alphaknifesupply.com/sho...0-carbon-steel
And here is USA Knifemakers 15N20, 1/8"
http://usaknifemaker.com/knife-blade...ngth-note.html
Goater if 15N20 came in thicker than 1/8" I would use it as often as O1. Not kidding, if you spend some time looking at what it can do it is impressive for a so-called filler for Damascus and you can bet the farm I use it for Damascus. HT to RC60 finished easily with toughness enough to make band saw blades. The nickel would make the center of the axe shiny. I'm sure you saw that 12" dagger I made for my son, if 15N20 came that thick I would have made it from that, though I wouldn't be able to blue it. 15N20 would make great swords.
You still did a great job for a first time. Tally Ho!