I found the following on heat treating AEB-L on the net...specifically on www.alphaknifesupply.com:
Heat Treating Information:
Preheat: Heat to 1560° and equalize.
1920°F Austenitize: Ramp to 1920°F and hold at temperature for 15 minutes. Oil or plate or air quench as quickly as possible.
1975°F Austenitize: Ramp to 1975°F and hold at temperature for 5 minutes. Oil or plate or air quench as quickly as possible.
Cryogenic Treating: To get the most from AEB-L you must cryo. Cool to -95 °F. No soak is required.
Temper: Temper immediately after hardeneing or cryo. Temper at least 2 times for two hours each time. Use the table below to achieve desired hardness.
I'm bound to start searching what the difference between the two austenitizing temps do, but I would like some input here as well. It seems weird to me, these forumulas.
So let me see if I get this right:
Start the oven, get it to 1,560 degrees
Open door, insert blanks, close door
Turn up temperature to either temp
Wait the 20 or so minutes it will take the oven to get there
Then let it soak for 5 or 15 minutes at either 1920 or 1975
Remove blanks immediately and quench
Cryo in some stupid cold liquid
Then temper immediately based on the table
That sound right?
What will oil versus plate versus air quenching do to AEB-L?
Lot's of questions....sometimes the engineer in me sucks!