peanut oil for O-1 and 5160?

[AA Forge]

Does any one happen know if peanut oil heated to around 130F-150F will fully harden O-1 or 5160? Any help is appreciated!

Thanks,
Adam

 

[deker]

Does any one happen know if peanut oil heated to around 130F-150F will fully harden O-1 or 5160? Any help is appreciated!

You won't fully harden O-1 with peanut oil. You can somewhat harden it, but you won't get full conversion to martensite. For that matter, you won't be able to fully harden O-1 without an environment where you can consistently soak your O-1 at temp for 10 minutes or so.

You'll have a better chance with 5160 if you're using peanut oil to quench and are using a forge r a torch to harden with.

-d

 

[AA Forge]

I do have an Evenheat kiln, the only reason I would like to use peanut oil over true quenching oil is the health concerns.

Thanks,
Adam

 

[Danbo]

I do have an Evenheat kiln, the only reason I would like to use peanut oil over true quenching oil is the health concerns.

Thanks,
Adam

What health concerns? You're not going to drink either oil, are you? By the same token, you shouldn't be breathing the fumes of either substance, so why not use the professional quenching oil designed to properly do the job?

 

[AA Forge]

I was concerned about the vapors, and on top of that the can of tough quench I bought a few weeks ago has a long list of warnings about contact with skin. I have also been looking at Mcmaster Carr 11-second quenching oil because it deosn't seem to be quite as nasty as brown ells tough quench. Do you know how well this oil works on simple carbon steels like 1075/1080, and 1095?

Adam,

 

[DanGraves]

I have had great success with the Mcmaster Carr 11-second quenching oil. Hardens hell with the 10xx series of steel. 5160 does not need as fast of quench but does fine with Mcmaster Carr 11-second quenching oil. I really like the stuff. When you are quenching, just make sure to have good ventalation. I open my shop doors and have an exhaust fan running and no problems.

 

[AA Forge]

How would you recommend using Mcmaster 11-sec. oil with 1095?

Adam,

 

[LRB]

It is not as fast as Parks #50, which is the most recommend oil for 1095. Brine is about the only better quench as far as reaching full hard, but carries a serious risk of the steel cracking in the process. However, many have learned to work with brine to a minimal level of failure.

 

[AA Forge]

I did a little reading into mcmaster carr 11-sec. oil and found that it is actualy faster than the brown ells tough quench, and on paper only 1-sec slower than Parks#50, so Mcmaster it is. Thanks guys for the help!

Adam,

 

[DanGraves]

I read a lot of threads and asked questions from some very knowledgable folks about Mcmasters-Carr. all thought it a good oil for 1095 as it is my main steel of choice. I really like what it does. I think you will be pleased.