The "Ask Nathan a Question" Thread

Nathan the Machinist Nathan the Machinist have you worked with 1V? It would seem to have the optimal combination of hardenabilty and toughness.

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Synov said:
Nathan the Machinist Nathan the Machinist have you worked with 1V? It would seem to have the optimal combination of hardenabilty and toughness.

high-alloy-toughness-3-7-2024.png
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1V is a lower carbon lower alloy hot work tool steel designed for high temperatures. It utilizes secondary hardening and it does not have a lot of carbide. I think it is a step in the wrong direction for my needs. Cruwear and 4V are some of the same family that are better suited for my needs.
 
Nathan the Machinist said:
1V is a lower carbon lower alloy hot work tool steel designed for high temperatures. It utilizes secondary hardening and it does not have a lot of carbide. I think it is a step in the wrong direction for my needs. Cruwear and 4V are some of the same family that are better suited for my needs.
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So you do care a little bit about abrasive wear resistance? I think it would make a great sword.
 
Synov said:
So you do care a little bit about abrasive wear resistance? I think it would make a great sword.
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While it's possible you might could optimize a heat treat for it that gave good edge stability, it is a hot work steel and that is not a property I care about.
 
The elements that prevent carbon from moving at those high temperatures also inhibits austinite conversion during the quench. A steel like that almost needs to be secondary hardened.

Now, if you're battling the demons of hell, that alloy would probably be tits
 
XtianAus said:
Is there a possibility you'll do a Edc pre-order?
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I'm not sure yet. We're juggling a lot of things right now and I'm not sure we want to undertake the additional complexity of a pre-order right now.

Secret to running a successful operation = keep things simple...
 
Spyderco thinks so highly of magnacut’s corrosion resistance it is now in their salt line - I know that different heat treats can bring out/amplify properties in a steel - does the way you are heat treating magnacut tend to effect its corrosion resistance at all?

I’m thinking of using a magnacut bfk as a dive/salt water knife. I can’t think of a reason not to…
 
garythegoat said:
Spyderco thinks so highly of magnacut’s corrosion resistance it is now in their salt line - I know that different heat treats can bring out/amplify properties in a steel - does the way you are heat treating magnacut tend to effect its corrosion resistance at all?

I’m thinking of using a magnacut bfk as a dive/salt water knife. I can’t think of a reason not to…
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I give no consideration to corrosion resistance when developing a heat treat. However, the heat treat that I use does maximize the amount of free chromium so it does happen to have the best corrosion resistance of the different heat treat options.

Quench rate is important for corrosion resistance because the free chromium is reacting with the carbon in solution on the way down. It is critical to minimize the time in this temperature zone and my quench rate for MC is much faster than industry standard.

Industry cannot afford to do this because it limits the amount of work that can be put in the oven, and the much faster quench rate leads to some unwanted dimensional changes. I will wager that my Magnacut heat treat is probably the most complex, time-consuming, and most expensive in the industry. I will also wager that my Magnacut is also the best on the industry.
 
Nathan the Machinist said:
I'm not sure yet. We're juggling a lot of things right now and I'm not sure we want to undertake the additional complexity of a pre-order right now.

Secret to running a successful operation = keep things simple...
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We don't need anything too fancy. I'm sure most folks will settle for at most lengthwise satin and carbon fiber scales...
 
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