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if you are currently set up to work with O1, you might want to look at grabbing a little bit of 1084 like the man from New Jersey sells just because it is a little deeper hardening that 1095 in part...

On a semi related note, I have been rearranging my bookshelves and while going through a box of guitar tablature books, lo and behold, I found my copy of the previously mentioned work by Professor...

LOL.Mickey D's had better watch out as they already have a bullseye on their back for trying to kill innocent American children with their greasy products. I just go by what the machinists tell us...

Mike, when I said simple, I mean't in its alloy content. By all accounts, it can indeed be a fickled mistress. I don't see O1 as being any "simpler" than 52100 as far as alloying goes. It may...

If any of us metal pounders should be called a "national treasure" Mr. Meier should certainly be on the short list of candidates for that title. :rock: I have also heard Kevin Cashen say that he...

The harder to hone part is a very interesting aspect with razors from what I have seen in my limited time on here. While not exactly counterintuitive coming from the knife world, It seem to me that...

As best as I can tell, that has kind of been the thinking with using the lower austenizing temps for 52100 in particular in that you only put so much carbon into solution and avoid things like...

Yeah, I love that stuff. Some guys have figured out how to get the accidental hamons on purpose and they look wild even at "user grade" hand rubbed finishes like 600 grit. You typically see that done...

My experience in getting from my Paragon oven to the patented turkey fryer quench tank full of Parks #50 or MacMaster-Carr medium-fast oil is that same as yours. The only hardening "issues' that I...

I was asking about the curve because I appears to start at around 1300F and I have read elsewhere that says that the Curie point for say 1075 is down around 1340F. I know that is different that the...

Mike, in looking at the graph, it appears the start of the curve is at around 1300F for O1 austenized at 1490F. The Curie point for iron is 1043K or around 1417F. I have been told that can move up or...

Okay, I now have a new term in my smithing dictionary. "potato chipping." I will put that right next to "corkscrewing" which describes what a thin kitchen knife blade can do. ;) I guess that i have...

So does that mean that Mr. Blue's equally inexpensive suggestion of putting some charcoal in the muffle pipe to try to avoid an oxidizing atmosphere is also a useless suggestion? A jar of ATP641...

Regardless of how you heat things up, i would recommend grabbing some PCB anti-scale compound. I like the liquid variety better. As for the toaster oven, you could use that for a lower temperature...

What Bruno said. In the US pipe like that is still referred to by many as "black iron" plumbing pipe even though today is is no longer made from cast iron.

I have used O1 and don't consider it to be a simple steel compared to say 1084.:shrug:

For normalizing O1, more like 1600F. For austenizing, 1450-1500 is what I have read. If there is such as thing as "generic' temp for a lot of the carbon steels that you might use, it is 1500F. I have...

Mr. Blue, he said that he took it up to "almost magnetic" for purposes of normalization which, to the best of my understanding requires you to well above the curie point to be effective. That is why...

Neither of these suggestions will serve you best with a steel like O1. Bringing up to almost non-magnetic will not normalize steel nor will it reduce grain size. At best, it will stress relieve steel...