kingston73 wrote: ↑
Thu Jan 30, 2020 11:07 am
Ok, so I have the choices of Rex 45, k390, maxamet and 52100.
For an overall good edc, light to moderate use which steel and why? I’ve read that maxamet blades have snapped?
Which will be easiest to maintain with a basic sharpening system? I have a sharpmaker and a set of diamond stones, I generally only use the stones when the sharpmaker isn’t enough.
52100 is in a totally different class of steel. Great stuff if you like sharpening and especially if you don't want to bother with diamonds, but on Larrin's "relative CATRA cut-test performance table
" it shows up as 50 compared to M4's 168. (old-school 440C is 100.)
K390 and Maxamet are on the far end of the other side of the scale. Maxamet tested to a 222 relative to those numbers for wear resistance.
Ease of sharpening, by the numbers, assuming you're using diamonds and we're talking about smallest achievable apex, should be something like: 52100 ... (Cruwear), REX 45, M4, ..... K390, Maxamet
Here's Shawn's breakdown on characteristics of a few of these:
Here he talks about grain refinement in Rex45 and how it takes a finer polish than M4, which is more aggressive: viewtopic.php?f=2&t=80749
I prefer something like 52100, since I like knocking the bevel down to a razor-like angle. But if you want to keep the factory edge angle, there's nothing wrong with having better wear resistance.