Spyderco Forums

VG10 has a higher chrome content than some other common blade steels and is therefore more corrosion resistant. You have to be careful here because the chromium that forms the passive layer is the free chromium, the chromium which isn't in the form of carbides. As VG-10 has a very high carbon conte...

Aside from stuff like H-1, that doesn't even fit the generally accepted definition of steel... Where does that come from? H1 is very similar in composition to the 300 series stainless steels. It has a higher carbon content which is why it will form martensite in hardening. The very high nickel will...

As a curious point, I watched my brother take a FRN Spyderco and lock it in a vice and lean into it. He was curious about when the handle would fail and how it would. The handle was fine, the blade snapped through the opening hole. FRN is weaker than steel yes, but it is very difficult to actually l...

Ceramics can warp in the firing/baking. If they are warped now it is likely they were always warped.

I would suggest contacting Spyderco / warranty directly to see if they won't replace them.

Just as a note, once an edge starts deforming, it will deform far higher than you might expect. Most people think if a knife deforms up to say 0.015" thick then you need to have the edge at > 0.015" thick to stop it deforming but this isn't the case. The physics is fairly basic. In short, ...

It was mentioned that the coating, some have speculated, can lead to corrosion. How would this occur, exactly? It has to be understood why stainless steels are in fact stainless. The main reason is that the chromium forms an oxide layer which prevents the iron from reacting with the oxygen in air, ...

Unless you want to spend a lot of time regrinding the edge, use the 20 degree slots to keep the knife sharp. If you want to improve cutting ability and edge retention (in general) then you are reset the edge at 15 degrees but that will take some time (as in hour+) . Fallkniven makes a number of well...

While it is trivial to pick out papers that seem to argue that coatings can offer corrosion resistance advantages ( http://www.sciencedirect.com/science/article/pii/S0921509302005786" onclick="window.open(this.href);return false; ) care has to be taken to understand that the results are se...

m4d wrote:Does anyone know how the corrosion resistance compares between S110V and S90V? Thanks.

S110V is significantly higher, but corrosion resistance is significantly influenced by hardening.

Keep in mind that high Vanadium steels are hard to sharpen on non-diamond abrasives. It is easily possible to sharpen high vanadium carbide steels on alumina and silicon carbide abrasives, they just have to have high enough friability to prevent the stone from wearing smooth. The SPS-II stones for ...

Which other possibilities are there? The opposite : -push cutting, low sharpness : tend to prefer low apex stability steels -slicing, high sharpness : tend to prefer medium to high apex stability steels For example a spltting axe is push cutting, however the sharpness can be very low and the axe st...

But, I have NO IDEA why should anybody EVER want to cut with "low sharpness" Most people do all the time. Have you ever sharpened knives for friends/family? The vast majority of people cut with knives until they are extremely dull. When you stop cutting, the point of sharpness at which yo...

This really blows me away hearing that there are steels that seem to do better with stones that have a coarser grit ... It isn't that steels do better in some kind of general sense. In order to tell if something is better or worse you have to specify the goal, what are you trying to achieve. If you...

So, I have no idea what do you mean with low and high sharpness. Never read that term. I would guess that it means a more acute angle of the edge (high sharpness) or less acute (low sharpness). Sharpness is essentially independent of angle. Sharpness is talking about the properties of the apex itse...

So, simple steels are better for push cut, and "complex" steels for slicing? For high sharpness and low sharpness respectively yes. Could you please define "simple steel" and the opposite of it (complex?)? Simple steels are essentially just martensite, with is a particular cryst...

From my very limited and fragmented "knowledge" I had the impression that old steels were not as good as modern complex steels at taking a very thin edge The great thing about the internet is that it gives everyone a voice, the bad thing about the internet is often who choses to exercise ...

The results :



Colin had an amazing answer, he identified all knives correctly and came extremely close saying 10.2 on the Modulator.

2) also with a S110V or M390? (the two I was looking at) In general, the more complex the steel, the less the utility of very fine high grit finishes as they are designed to hold different edges and do different types of cutting. This is why for example O1 is generally preferred over D2 for chisels...

So I bought the UF stones and all is well...except, I cannot figure out how to get a good edge on super blue. I can get a pretty solid edge with the medium stones, but switching to Fine and UF makes the edge progressively less sharp. I've never really experienced that. If I hit super blue on a stro...

What did I miss? :confused: This part : I checked this as I was curious and the CBN has the same steeling effect. If I just do 2 passes on the CBN rods the edge is very sharp, but at that point while it did remove metal it also pushed a lot of it back into place. I was doing the same amount of pass...