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131 points p-s-v | 1 comments | | HN request time: 0.307s | source

Hey HN!

I'm a bit of a knife steel geek and got tired of juggling tabs to compare stats. So, I built this tool: https://new.knife.day/blog/knife-steel-comparisons/all

It lets you pick steels (like the ones in the screenshot) and see a radar chart comparing their edge retention, toughness, corrosion resistance, and ease of sharpening on a simple 1-10 scale.

It's already been super handy for me, and I thought fellow knife/metallurgy enthusiasts here might find it useful too.

Would love to hear your thoughts or any steel requests!

Cheers!

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keisborg ◴[] No.44016437[source]
I looked through most of the charts, and I it seems like you cannot get the best of two worlds. Can you get good edge retention, ease of sharpening and toughness at the same time?

It would be nice with an example on how knife steel properties work. I assume there are balanced tradeoffs.

replies(4): >>44016494 #>>44016990 #>>44017976 #>>44018717 #
1. Zak ◴[] No.44016990[source]
"Edge retention" is mostly achieved through high abrasion resistance. Sharpening is removing material by abrasion until the edge has a small radius, so ease of sharpening is mostly achieved through low abrasion resistance.

Being soft or brittle can also make forming a sharp edge difficult, requiring very light pressure in the final phases of sharpening to remove or avoid creating a burr in the case of softness, and to avoid chipping in the case of brittleness.

Of course all of these properties are affected by the heat treatment, which is often more important to the performance of the knife than the composition of the steel.