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- Apr 29, 2016
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- 790
Here's what the developer of the steel had to say about Magnacut...I haven't seen a thick runt for a minute.
What do we know about Magnacut? Think the runt from todya's group could pry?
That said, I can tell you that Andy isn't necessarily in 100% agreement with the science of the man behind the steel. However, it is a very popular steel in the knife world, so Andy has been offering the steel as an option on some knives. It's not that he doesn't think the steel is good ... it IS a good "super steel" for the end user. He's just not a fan of working with it as a maker, and doesn't personally think it's that much better than an S35VN or the more preferable RWL34 you've seen a few knives in lately.Some Notes From Dr Larrin Thomas:
CPM MagnaCut is the result of my passion for knives and steel. I used a new approach to stainless tool steel design to eliminate chromium carbides from the microstructure. This led to a combination of properties which is better than previous stainless knife steels, and has similar toughness and edge retention to non-stainless steels like CPM-CruWear, CPM-4V, and Vanadis 4 Extra. The corrosion resistance was also excellent, even better than I was expecting, which means that the hardness-corrosion resistance balance of MagnaCut is very impressive, with achievable hardness being 64+ Rc and corrosion resistance being even better than steels like S110V, S45VN, and M390. The recommended heat treatment is 2050°F austenitize and 350°F temper, and a cold treatment after the quench means somewhat higher hardness.
Larrin Thomas - Knife Steel Nerds
The RWL34, in contrast, was developed years ago by knife-making legend Robert Loveless, you may have heard of him.

In any case, I'm going off of memory here from a recent conversation with Andy on this... and I very well could be misremembering something. So, take that into account.
But, to sum up... Andy doesn't dislike Magnacut and he's happy to keep making them if you guys like them... But, his personal preference in that category of steel is RWL34.
So, if you'll excuse me... I now have to go fact check everything I just said to make sure I'm not putting words in Andy's mouth or misrepresenting things...