Heat treating AEB-L with RWL-34/S45VN

[shqxk]

I have a big bacth of RWL-34 and S45VN going in for vacuum HT, the process will be several pre-heat treating stage and then 45 minutes of 2010F then 4 bar nitrogen gas quenching. There are also a couple hours of L2N cryogenic then triple 350F tempering.
The question is if I throw a big sheet of 0.196 thickness AEB-L to be HT in this batch what the result should I expected? Not sure if 45 mins 2010F will cause grain growth on AEB-L?

 

[BluntCut MetalWorks]

I have a big bacth of RWL-34 and S45VN going in for vacuum HT, the process will be several pre-heat treating stage and then 45 minutes of 2010F then 4 bar nitrogen gas quenching. There are also a couple hours of L2N cryogenic then triple 350F tempering.
The question is if I throw a big sheet of 0.196 thickness AEB-L to be HT in this batch what the result should I expected? Not sure if 45 mins 2010F will cause grain growth on AEB-L?

aebl 2010F 45min soak, I expect aebl ~61rc, ~12% RA. Due to edge mushiness, it needs 16+dps edge to pass whittling femur bone (or antler tip) test.

 

[HSC ///]

I do not think the time of 45 mins will be a problem at 2010F

I soak for 40 mins

 

[Scaniaman]

Seems like a high temp for AEB-L, and a long soak time.
Even for RWL-34 that sounds high, it should peak in toughness around 1950.
I don't have any knowledge about s45vn.

 

[shqxk]

aebl 2010F 45min soak, I expect aebl ~61rc, ~12% RA. Due to edge mushiness, it needs 16+dps edge to pass whittling femur bone (or antler tip) test.

Will the grain growth be a problem with this temp/time?

 

[BluntCut MetalWorks]

Will the grain growth be a problem with this temp/time?

I didn't see aebl grain growth up to 2125F, no experiences/data with higher temp. LOL, 2125F RA% is still so bad that after LN2 hardness stuck around 50rc.

 

[HSC ///]

I haven’t done AEBL in awhile but I checked my notes and I used 1975F. I don’t think the 45 mins is a problem.