Testing Brownell's Tough-Quench -

I'm not sure. I think it's pretty fast, but maybe Park's AAA is faster? Kevin Cashen would know.
 
Now you guys have me wondering. I bought some 'fast quench' from K&G. I wonder what that stuff is. Only used it on one test blade, but worked great.

I've used water, brine, goddards goop. But I think I can see why mete and Kevin insist on professional quenchants.

1) it worked right off the bat
2) instills confidence
3) it really doesn't cost all that much considering how long it lasts.

Steve
 
Sando said:
...I've used water, brine, goddards goop. But I think I can see why mete and Kevin insist on professional quenchants.

1) it worked right off the bat
2) instills confidence
3) it really doesn't cost all that much considering how long it lasts.

Steve
Click to expand...

So we may be right on this one, but just remember, even a broken clock is right twice a day ;)
 
rlinger....how are you testing the rockwell hardness?
 
Kevin R. Cashen said:
So we may be right on this one, but just remember, even a broken clock is right twice a day ;)
Click to expand...
well put, Kevin (as usual)
 
Roger here's another question for you. I depend on the brass rod test to tell if my blades are tempered as I like, flex with rebound, no chipping. What I would be interested in is, at what rockwell and the draw temp you used, do you have to draw to, to achieve this. I don't have a rockwell tester or I would already know. Just curious, if your interested in another test.

Thanks,

Bill
 
I really have no idea Bill. I just received this quench and was doing this series to get an idea of rapid quench, retained austenite and tendency to warp the steel. The O1 I am using is in bar form, not beveled so I can't really put a brass rod to it. Tough-Quench came highly recommended to me and I bought it primarily for quenching the Nick Wheeler damascus used in our collaboration knife.

Some other questions concerning this compared to other oils and even water: I won't be able to get that involved at this time. Too much going on right now with heat treating stainless blades and trying to catch up on a couple knives to complete.

BLGOODE, I use a Rockwell tester to test the steel hardness.

RL
 
After deep cryo the O1 of test #2 went up 1 HRc point:

Quench
Snap temper at hand warm 300 F / 1 hour - 64 HRc
Deep cryo ( > 12 hours) - 65 HRc

This time the steel (1/8 thick) warped in quench. I did not warm the oil because I wanted to do it 'worse case' to see if I would warp. It did.

RL
 
I love it when you get on the Jazz Rodger. Keep it up. I pick up more real tech data from your tests than anywhere else! ;)
 
Danbo said:
I'm not sure. I think it's pretty fast, but maybe Park's AAA is faster? Kevin Cashen would know.
Click to expand...

AAA is designed for oil hardening steels, so it is not super fast, just very efficient and even. I would give the prize for the next fastest thing to water to Park #50. It is by far the fastest quench oil I have ever worked with, but should be used with things like W2, and 10xx series steels, it would be a littel too extreme for O1.
 
I'm glad Peter and thank you for encouraging me.

That's it for the O1 testing. I have one small scrap piece of Bruce Bump ladder damascus 1084 / 15N20. It is triangular and measures about 1 1/4 inch at the base and is about 5/8 inch wide to the apex. On that one I will do the whole HT gambit, except normalizing. I'll heat the oil to about 130 - 135 F, do a pre-heat cycle, cryo and score and break. I'll aim for double tempered hardness of about 59 - 60 HRc. It will be interesting to see what it tests after snap temper and after cryo and what temperature it will require for a final hardness of about 59. I will guess 450 F or higher. It will be several days before I can get to it because the oven is tied up for a good while now with blades to do.

So far, I like Tough-Quench a bunch and it has been my lose for not aquiring professionally developed quenching oil before this. I now use vegie oil for HT'ing hot wings. Doing some now actually.

RL
 
Kevin R. Cashen said:
AAA is designed for oil hardening steels, so it is not super fast, just very efficient and even. I would give the prize for the next fastest thing to water to Park #50. It is by far the fastest quench oil I have ever worked with, but should be used with things like W2, and 10xx series steels, it would be a littel too extreme for O1.
Click to expand...


Thanks, Kevin. I knew you would know. I should know by now, since I have a 5 gallon bucket of the stuff(Park's #50). I keep forgetting which is which.
 
You must log in or register to reply here.
Back
Top