1095 steel?

DeadboxHero said:
1. I can only work with the information you posted not what your perceived intentions or thoughts are.

2. Normalizing is a part of thermal cycling. Refining grains and carbides doesn't change the fact that austenitizing temperature is the most significant factor for differences in hardness, toughness, strength, etc.

3. Control at a specific temperature doesn't change the fact that different Austenitizing temperatures are what is controlling retained austenite the most followed by cold treatment.

4. It's not about the small change in hardness as much as it's about removing undesirable features in the microstructure.

That wasn't any kind of secret heat treat that was just showing the difference Cryogenics makes.

If there's that much of a change in hardness than there is a significant amount of retained austenite that's being converted with the cold treatment.

S sodak seems to notice a difference

In my experience, the edge has better resistance to deformation and better edge taking and deburring.
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I'm not 100% sure what you're driving at here.

All I initially said was 66 was "pretty much" the as quenched hardness limit of 1095. Which it is. Yes, as you and I have both attested to, another point or two CAN be gained under ideal circumstances.

You seem to be talking to me as if I have some issue with my heat treating process/1095 (I don't) and that I reached out to you for help (I didn't) and that I'm disputing what you're saying (I'm not).

I actually have a very good understanding of heat treating and very good control of my process, including specific numbers and lots of testing of various types. I assure you....I don't have a RA problem.....I'm not sure why that is coming up?

Sounds like you have a good understanding of heat treating too. Congrats. Hopefully you're up to your neck in orders.
 
J. Doyle said:
I'm not 100% sure what you're driving at here.

All I initially said was 66 was "pretty much" the as quenched hardness limit of 1095. Which it is. Yes, as you and I have both attested to, another point or two CAN be gained under ideal circumstances.

You seem to be talking to me as if I have some issue with my heat treating process/1095 (I don't) and that I reached out to you for help (I didn't) and that I'm disputing what you're saying (I'm not).

I actually have a very good understanding of heat treating and very good control of my process, including specific numbers and lots of testing of various types. I assure you....I don't have a RA problem.....I'm not sure why that is coming up?

Sounds like you have a good understanding of heat treating too. Congrats. Hopefully you're up to your neck in orders.
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Well, my apologies, I'm not here to discredit you or your work.

You make very beautiful knives that make many people happy.

I'm just talking strictly heat treatment and metallurgy.

It's not my intention to be rude, again my apologies.

I would just like to open people's minds to the possibilities and more understanding about some of the intricacies involved.

-Shawn
 
DeadboxHero said:
Well, my apologies, I'm not here to discredit you or your work.

You make very beautiful knives that make many people happy.

I'm just talking strictly heat treatment and metallurgy.

It's not my intention to be rude, again my apologies.

I would just like to open people's minds to the possibilities and more understanding about some of the intricacies involved.

-Shawn
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No worries. No need to apologize. I don't find your posts (or you) rude at all.

I guess I just wasn't sure what I was supposed to do with this information? You've managed to get another point or two of hardness above industry standard. That's awesome, it really is. And I fully understand and agree that that is only part of the equation and that microstructure and internal conditions are extremely important. I DO care very much about heat treating as well as fit/finish and take care to do it consistently to the best of my ability.

For me, I'm getting consistently to industry standard (or even slightly above) and I'm not going to invest the time or money into a cryo setup for simple carbon steels, especially when myself and a few of my knowledgeable and esteemed peers have concluded there isn't enough appreciable gain .......again, FOR THOSE STEELS.

I might feel totally different if I was leaving 4 or 5 rc points on the table or if I was having some sort of problem with my process.
 
I'm really enjoying reading this back and forth. Plus, I'm trying to learn as much as possible from all of you. To be able to have all these different approaches to "just" 1095 shows how incredibly complex and important metallurgy is.

I don't know the specifics like you guys obviously do, but I do know, when it's done well, 1095 is awesome, and has FAR more potential than most people realize. I wonder how many other steels we could say the same thing about.

When I'm talking to non-knifenut friends, they often say, "It's just a piece of steel." :D
 
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