Category: Heat Treating and Processing
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Testing Erasteel MagnaCut (vs Crucible Original)
Crucible, Niagara, Erasteel, and MagnaCut
In case you haven’t been following steel news, Crucible Steel went through a bankruptcy and no longer exists. I interviewed Bob Shabala of Niagara Specialty Metals about this transition several months ago. Niagara is the company that purchased ingots from Crucible and would hot roll, anneal, and distribute them to knife companies and steel suppliers. They have also recently started a new online store to better sell directly to individual knifemakers. Niagara has managed to keep production going for a wide range of Crucible (and other) knife steels, including:
Pop’s ProCut – A New Carbon Steel for Knives
My steel research is supported through Patreon. Patreon supporters saw the news on Pop’s ProCut before anyone else. There is currently an article about the upcoming MagnaMax only available on Patreon.
The Future of Knife Steel with Bob Shabala of Niagara Specialty Metals
Thanks to my Patreon supporters for supporting knife steel research. Patreon supporters saw this interview a couple of days ago. You can see the latest results of my testing early if you join at Patreon.com/KnifeSteelNerds
Factory vs Custom Heat Treating of Knives
Patreon
Thank you Patreon supporters! Thanks to you we can do all the experiments that are in this article. If you want to support knife steel research come join us at Patreon.com/KnifeSteelNerds.
Video
Here is the video version of the following information:
What is Atlantic 33 Non-Tempering Steel?
Atlantic 33 Steel
There are a few places to purchase this Atlantic 33 “non-tempering” steel so I have been getting questions about it over the past couple years. The information is pretty scant and the descriptions are mysterious and confusing to anyone who knows steel [1]. In the advertising it says things like: “Drawing of temper to suit different requirements is unnecessary and completely eliminated.” Also there is no composition listed and the heat treating instructions are very barebones. “Suitable hardness is obtained by merely heating the tool and quenching it in water.” And, “May be heated to almost a melting heat without danger of distortion.” It basically just says to heat treat it however you feel like and skip the tempering. If it’s true that it doesn’t matter how you heat treat that is great, but otherwise it would be nice to know how to best heat treat the steel.
Testing Cold Forged 52100 Knife Steel
Patreon
Thanks to my supporters on Patreon.com/KnifeSteelNerds. Thanks to your support we can do studies like this. Come join us on Patreon if you want support knife steel research too.
Video
I also have a video covering this same material:
Coatings vs Foil – Heat Treating Steel
Thank You Patreon
Thanks to my Patreon supporters I was able to buy all of the coatings to test for this article. If you want to support more knife steel research come join us at Patreon.com/KnifeSteelNerds
Introduction to Knife Steel Heat Treating from a Metallurgist
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Intro
I have many articles about all of the nitty gritty details of heat treating and the metallurgy behind every step. However, there may be some cases where knifemakers are afraid of all of the terminology and science and think heat treating is too complicated for them. When it comes down to it, the steps of heat treating are not particularly difficult. When you follow a recipe for how to make cookies you don’t need to know the science behind every step, but following them will still get you cookies at the end. An expert would know what went wrong if your cookies were too crunchy, too puffy, spread out too much, etc. And how to modify the recipe to change the flavor and texture of the cookies. However for most of us we will just follow the recipe. You can do the same thing with heat treating knife steel! So for this article I will tell you how to follow a datasheet. I will include some links to articles with more information about what happens in each step, but you can get to those when you are ready. Another great place to learn more about heat treating is my book Knife Engineering: Steel, Heat Treating, and Geometry.
Rapid Heat Treating with Salt Pots
Thanks to my Patreon supporters I have a salt pot furnace and was able to get some high temperature salts to test out austenitizing in the salt pot for this article. Patreon dollars also went towards metallography for this study. If you want to support further knife steel research become a Patreon supporter today!
How to Anneal Stainless Steel After Forging
Another rather large heat treating study! This one took quite a bit of time, effort, and money. If you want to support further research visit Patreon.com/KnifeSteelNerds and become a Patreon supporter. All of the money I receive that way goes to knife steel research. And you get some perks like seeing articles and videos early, and at a high enough tier you get a free Knife Steel Nerds mug!
I consider this site an excellent source for information, I learn something every time I visit.
Have a Bench Made Tagged Out Magna cut. Very tough so far
Ciao Larrin,trovo molto utile questo sito,
Avrei una domanda riguardo all’acciaio A8mod:come é meglio temprarlo per raggiungere la massima durezza?