First used for quenching

Robert Mayo

Robert Mayo

Joined
Oct 13, 2005
Messages
1,236
After all the good threads about quenching it makes me wonder what you guys that have been making knives for a long time used for quenching your first blades? My first knife shaped object was quenched in trans fluid.:D

Bob
 
For heat treating 1084 I used ATF (pre-heated to about 140 deg) for many years with what I thought were great results.
This past summer I finaly broke down and bought 5 gallons of Parks #50 and discovered that my ATF quench was not quite as good as I thought. It makes a huge diference!

-Mike-
 
I started doing my own HT in 1984, stock removal 440C. We had quite a bit of industry in this area at the time and fortunately had an oil distributor locally. I told them what I was doing, and a tech engineer recommended a particular Mobil Oil quenching oil for which I have forgotten the designation. I was lucky enough that it worked ok for O-1 when I started forging, and HRc's always came out good. After all these years of learning more, I have to imagine that it wasn't "optimum" for one of those steels. :)
 
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Thanks for posting fellas as for the part blood thing don't you have a video game to go play.

Bob
 
I started out using fresh canola oil for O-1 and only recently was able to purchase some AAA and Park's 50.

--nathan
 
I used olive oil for the first several years with good results. Just can't let it freeze, never returns to its original state after that. Smells better than ATF too!
Ed
 
First batch in water, cracked a few. Then a few batches in used motor oil, then a batch in warm vegetable oil, finally a batch in warm vet grade mineral oil. Got better each time. Using files as stock. Finally ordered some 1080 that will get the mineral oil.
 
Water was all I had in 1960. I went to Parks AAA and #50 when I got back into forging about 10 years ago.
Stacy
 
Water, mixtures of trans oil, parafin old cooking oil (Goddards Goop) used motor oil and the most success was with some from Brownells about 10 years ago. Am still using it when I do carbon steel.
 
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