AEB-L Etch

[SS369]

Good day all.

I'm hoping to get some info/insight about this etch on some AEB-L.
HRC 61
.070 thick
Sanded to 400 grit, not cleaned with anything, just wiped clean with paper towel.
Etched in FC at 60 degrees for 30 minutes
Rubbed down with steel wool lightly, although the pattern was pre-wipe.
Re-etched another 30-ish minutes.

What is the striated pattern and what is the dark at the tip and heel?

Scott

 

[Freds Edge]

Am I correct in that you are trying to etch stainless ?

 

[SS369]

Hi Fred, yes the AEB-L is stainless. (Professionally HT'd and with cryo to 61 HRC)
The FC is working, although it is not quick. But, as the picture shows I am getting some strange patterns.