View Full Version : Synthetic Oil for Quenching


jvanhooser
01-24-2003, 02:00 PM
I did not see this in the archives, so here goes...

Any pro's or con's on the use of synthetic oils for quenching?

I am about to heat treat my first piece of o1 tool steel.

Thanks!

GANNMADE
01-24-2003, 02:26 PM
I USE OLD MOTOR OIL THAT HAS OIL TREATMENT AND
SLICK50 IN IT.AND IT DOES FINE :)

Ray Rogers
01-24-2003, 03:01 PM
The only real issue is just exactly how fast that oil will cool the steel. Too fast - like water - and the steel will crack. Too slow and it won't get hard enough. Chances are, it will be fine. Don't be afraid to experiment, that's how most of these guys find the really cool solutions to their problems.

I use hydraulic fluid ( a lot of guys do) but I've heard of using used motor oil, mineral oil, even a parafin and lard mixture. It all works, but some will work better for one guy than another ....

jvanhooser
01-24-2003, 03:23 PM
Thanks for the encouragement...

Jumping in and experimenting with new ideas is usually not an issue for me, but I am so invested (you know, the blood, sweat, and tears thing) in this first blade I didn't want blow it on the first try.

I hope you experienced folks know how vaulable this "newbie" section of the forum realy is for beginners like me. Thanks to all.

whv
01-24-2003, 03:44 PM
didn't want blow it on the first try one of the beauties of o1 is it's forgiving nature. if the first heat treat doesn't work to your satisfaction, just start over. ;)