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The only other place I am aware of is Maxim Oil in Fort Worth Texas.

There is A8 (~5% Cr) and then A8 Modified (~9% Cr). The carbon content is good for extreme duty type applications, as it is only .5% or .6%. Extremely tough knives, these steels will make. "air-hardening, 8% chromium tool steel which exhibits very good wear resistance and toughness...

Ed...that was a great write up on stamping vs etching. Been tossing around a stamp in my head for a while also...thanks for that info.

I'll bite too. I second or third what these gentlemen above have said, making a karambit knife on your first go if it might be more of a challenge than you think. If this is your first, I would say try something more traditional, like a drop point hunter or such. But other than design...

The W2 and 1084 I know for a fact come from Germany, as well as the 80CrV2.

On the ATP, I've been using only one very thin coat, and get really good results. No decarb, no scale. Even at 1650°F.

Hang in there, Scott! I will keep you in my prayers this week.

Aldo isn't perfect. While he is a rock star in my book, I was sent 15n20 instead of 1095 last year. But he made it right and then some. I see these threads every now and again about 52100, and I must say after Kevin's explanation of coarse spheroidized structure and how to deal with it...

My understanding of quench and timing is different than Ed's. But to be sure, Ed is right over the target here. 20 feet away is about 18 or 19 feet too far, and a LOT of heat will dissipate walking that distance no doubt about it! This is how I understand quench and timing: Let's use as an...

What these two gentlemen above are saying very politely is that it is physically impossible for those steels to reach those Rockwell C scale numbers. Maybe the A scale is what you are reading....but it certainly is not the C scale, unless your tester is way out of wack. You might want to...

I've just got to say my piece here, cause this topic is a HOT topic right now, for sure. I've been told by a few makers whom I respect to NOT use Devcon. I'm thinking, "Why not?" And that, "Devcon cannot be that inferior to other epoxies such as Gflex or what have you." Then I read Ed...

Did anyone else catch the grain size of the blade that had it's tip snap off? No wonder it went with just a light tink on the vice. The grain was HUGE HUGE HUGE....even thru the TV and across the room...the grain was massive. Instead of dictating 4" of serrations (really? serrations?), they...

A straight razor needs a spine thickness to blade height ratio of around 1:4. The angle created then is about 14 total....just right. The edge thickness itself basically needs to be "zero", before sharpening. The "meat" that will support that edge is the bevel itself, created by the geometry...

Yes...heat treat is same. As you said...15n20 is basically 1070 without the nickel. It may actually be a bit easier to heat treat 1070 as it doesn't really need a soak. 15n20 is best with a soak.

For me the 150mm Petty knife fits that bill quite nicely.

Ken, I believe you are right over the target dropping bombs there. Dead on. What if with AEB-L (let's say we usually do three tempers), and we quenched, did one temper, then the second temper, but we didn't have time to do the third.....and we forgot and it's been a few days. Would there be...

Ditto what HennieL said. I don't think there would be any change/problem....but perhaps someone else who knows more can chime in....

According to Aldo....it indeed comes from Deutschland. I always have been a little shocked by the 7 second pearlite nose on that steel. I thought it would be less than that.

For knife application, don't use those austentizing numbers. Way too high. Stay with 1475F thru 1500F. And IIRC, the pearlite nose is 7 seconds on this steel.

You shouldn't "wait" to temper. You do need to wait long enough for the steel to reach martensite finish temperature, tho. When speaking carbon steels, this is generally about 150F-200F. So once the steel has reached room temp.....there should be no delay in getting into the temper oven...