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A11 is an amazing steel. It is tough and has excellent edge holding.
I don't understand why this steel is not more popular with knife collectors. It is tough to work because of its a wear resistance. I don't think any knifemaker will offer any finish except for a belt finish. It will also be hard to sharpen. But once it is sharp it will be sharp for a long long long time.
K390 is shown in the table above for comparison purposes.