Wayne goddard says that cold oil is not wet enough.
Best knife quenching oil.
That is it transfers heat more quickly compared to other quenching media like molten salt or gas.
In order to put a hard layer on the steel carbon must be fused at the molecular level into the top centimeter or so of the steel.
Hardening steel with motor oil is a way of performing what is called the case hardening of steel.
Normalize x3 if forged then 1500 f for 10 to 30 minutes.
Oil quenching is popular because of its severity.
This is why using high quality steel is the best choice for knife making.
One way to do this is to make the.
Knife making supplies best prices selection and service.
In order for the oil to provide the right qualities for quenching it needs to be warmed.
5160 high carbon alloy steel.
Easy to make a good knife as it hardens well in just about any oil but requires a controlled soak to make a great knife.
Pure steel is actually too soft for many applications.
Determining the proper quench oil means knowing the type of steel you are working with.
Canola mineral oil transmission fluid etc.
Water based caustic quenchants actually quench parts even more quickly than oil but the severity with which caustics quench parts can cause significant distortion or even cracking for some materials.
Do not overheat after normalization.
Availability price and personal preference can all come into play here.
Jantz offers three of the best quench oils on the market and between them they cover a wide variety of knife making steels including 52100 80crv2 o 1 and.
Also certain carbon steels quench better in certain oils than others.
I used a hotplate set on low heat.
Personally i use both park s 50 canola oil.
Roy reveals his secret quenching oil in this video.
50 knife shop suggests the oil should be 90 140f but i just used my finger to judge when the oil became bath water warm.