Military Bayonet Hardness Question

[grangerknives]

Does anyone know the approximate hardness of the M_9 bayonet in general?

Specifically, I have a Lan-Cay that I started sharpening with conventional stones (Lansky).
I ended up using a mill file. I don't know the HRC, but it is obviously notably below normal knife range.
I understand a bayonet is designed to take much more abuse/misuse and shock than a normal knife.

I am a maker so I understand the HRC range, I was just curious if there was a specified hardness for the M_9.

Thanks,
Paul

 

[Rhinoknives1]

See if you can call Lan-Cay and ask them?

 

[grangerknives]

Lan-Cay used to have a website. I have been on it several times. It is no longer there, at least by the same name.
At any rate I found the HRC to be listed by a retailer as 53 - 58. Now we know.