Search Results for: AEB-L

History - Articles - Books, Steel and Knife Properties, Steels

All About AEB-L

Larrin

Thanks to anteck7 and Aaron Lee for becoming Knife Steel Nerds Patreon supporters!

History of AEB-L and 13C26

Tracking down the history of AEB-L was surprisingly difficult. The Uddeholm website claims that AEB-L was patented in 1928 [1]; however, that is not entirely truthful. Uddeholm did patent a stainless steel in 1928 [2], which was named AEB, and later AEB-H to differentiate it from AEB-L. This was a very early stainless steel, so its development and patent needs to be viewed in that historical context. You can read about the development of stainless steels in this article. The AEB patent was for 0.7-1.1% carbon, 10-16% chromium, and 0.75-2.0% manganese. The original Brearley and Haynes stainless steel patents were still in effect; they got around them by using a higher carbon content than the Brearley patent (had a 0.7% max), and by claiming that high Mn led to improved corrosion resistance (it actually doesn’t). The nominal composition of AEB became 1% carbon and 13.5% chromium, which gave it a relatively large carbide structure compared to AEB-L, but it did see some use as a razor blade steel. read more

Edge Retention, Heat Treating and Processing, History - Articles - Books, Toughness

Testing Chinese Knife Steel 8Cr13MoV/8Cr14MoV

Larrin

Thank you Patreon Supporters!

Thank you to my Patreon supporters who help make these studies happen. Patreon funds were used for purchasing two ultimately useless knives, and some steel. Patreon supporter Marcus Ho even sent me some steel all the way from China which also ended up not working out. And I used Patreon funds to pay Shawn Houston (also a Patreon supporter) to do microscopy and grind two CATRA knives for me. So when I say that Patreon makes the study happen I don’t mean in an abstract sense. If you want to help fund more knife steel research please come join us on Patreon where you can get articles and videos early. Or if you sign up for the highest tier you can even get a sweet Knife Steel Nerds mug. read more

Austenitizing, Cryo, Damascus, Powder Metallurgy, Steel and Knife Properties

Damasteel Heat Treatment and Properties

Larrin

Thanks to the new Knife Steel Nerds Patreon supporters! The newly performed research in this article is all paid for through Patreon funds, such as the purchase of expensive Damasteel. Patreon money is only used for knife steel research. Sara Rempelos, Theo N, Christopher Kuehl, Dirk Hoogenbosch, Nick, nats spawnee, Krisztián Szegi, Todd Ellner, Seth V, Jonathan Graham, Ben Secrist, Drew Certain, Scott Armstuts, Ronald Justin Agee, Jim Darnall, Chris G, Farrell K., Bill Behnke, Paige, Luis Hernandez, clockworkfish, Barry Gordon, KarRawr, Ming Lin, Theodore Loach, Matt Bobchin, Flo, J.T. Pouland, Mark Watt, 愷麒 王, and Nickolay Matershev. read more

Damascus, Edge Retention, Toughness

Does Damascus Outperform Super Steels? Testing Different Combinations

Larrin

It’s been a while since I posted a full article, so there are a bunch of new Patreon supporters. Thanks to our new supporters Jack Hilton, David Heleander, KevinP, huck, Dd, C, Brian Fencil, Rick Steele, Leon Rodak, Kendal Thomas, The Madman, Michael Kelly, Allen Thomas, Jim Pickard, Linqian Chen, Matt Masuda, Nick Dunham, Fikes Lee, Timothy Becker, jmasinter, MakaBones, Will from Maine, and Charles. Please go to Patreon.com/KnifeSteelNerds if you want to be a supporter. Damascus is very expensive and this is one of the priciest studies I have ever done for Knife Steel Nerds. I spent several months and about $10,000 to do the following study. Without reservation, I can say this is the biggest study on the performance of pattern-welded Damascus that has ever been performed. Your support means we can do more studies on knife steel that would be unrealistically expensive otherwise. read more