I think it's the ultimate promise to a beginner, an iron that stays sharp for a very long period of time. But the equation holds only if the user can't learn how to sharpen the irons the way they would've been 150 years ago (in one or two steps rather than a whole bunch).
David, there are two assumptions in this paragraph. The first is that a long lasting iron is aimed at "a beginner". Again, there are those that collect ultimate tools and those that use the bloody things. I work with very abrasive woods. These are not the sole domain of Australia. O1 steel does not hold an edge for long. I have demonstrated this with chisels. It is pathetic compared with PM-V11 or White Steel. I have Clifton (the old version) blades for my LN planes. These are used alongside the LN A2 blades. The Clifton blades are sweet .. for 1 minute, and then they are dull.
Now I do not know how they sharpened irons 150 years ago. Do you? In any event, the system I use for sharpening is extremely efficient. The measure of this is that re-sharpening is not something that I consider to be an effort.
Takes about 1 minute to sharpen a vintage iron with a washita stone and leather strop, and probably somewhere around another minute to take a plane apart and put it back together. I can't remember what it used to take me with guides and a progression of stones, etc, but probably double that when you factor in needing to flatten stones and screw around with them.
I hone A2, PM-V11, White Steel and CPM-3V in under 1 minute as well. These are freehanded on hollow grinds. I use Spyderco stones and Veritas green compound. No need to flatten any stones. Very sharp.
though it's not a perfect comparison, the wonder steels made a trip through the straight razor community in the early 1900s, especially steels with additional tungsten. They eventually fell on their face and the standard razoring went back to "best silver steel" or some other relatively generic carbon steel. Japanese razors makers later than that got fascinated with making razors harder, but they don't work right on the strop then and in the end they're a little less convenient than a razor of traditional hardness used with a traditional linen and strop.
I am not surprised that these alloys were hard to hone in 1900 ... on oil stones! I doubt that they would be much of a challenge on modern gear. In any event, examples from knife makers are not always applicable to woodworkers.
I am not knocking the merits of vintage steels that have been hammered and laminated. It is just that they are not freely available and there are modern replacements that are superior. The bottom line is that the goal posts have shifted, although the mind set of some has not.
Regards from Perth
Derek
Couple of things, Derek. I used everything I could find in the last 10 years (reasonably, at least). I haven't found O1 to be lacking in edge holding except when using single iron planes or not taking a thick enough shaving for penultimate or earlier work. It doesn't have to be hand hammered or modern, either, just vintage production steel is fine.
There was no shortage of stones to sharpen those razors. Carborundum company was making silicon carbide razor hones in the early 1900s, and they sold a lot of them, but they inevitably didn't get used much. Swaty and american hone and others were making hones with silicone carbide and aluminum oxide in them. The idea that those types of stones are new is not true. The professional barbers preferred coticules and stones from thuringia in germany because they are just better for a razor. They impart a better edge equality. For the same reason, they used genuine linen strops and shell from a horse (instead of cheaper cowhide). Certain things work better. Razoring is not planing, so not all comparisons can be made directly from one to another, just interesting that someone attempted to make tungsten steel (more or less in the direction of high speed steel), which applies to theory reasonably well because tungsten doesn't do too much to create large carbides. But in the end, it's not as nice to use because the quality of the edge is very important, and being able to maintain it easily is, too.
Oilstones weren't commonly sold or used for razors, with the possible exception of cretans and charnleys (something you won't get much of in the US or Australia).
I have two V11 irons. I don't have a situation where I take a whole bunch of smoother shavings in a row (I used to do all of my dimensioning work with machines), so I don't know how much longer V11 lasts than carbon steel in that application, but for someone increasing the shaving size a fair amount for most of the work, and taking fine shavings only for the final pass (which is essentially taking smoother shavings after a try plane - easier yet than even following a machine planer which can steel leave some bow in work), the smoothing is by in a blink of an eye.
I can say for sure (because I used V11 to dimension a plane billet vs. a butcher iron) that the advantage pretty much evaporates when the work is done with a thicker shaving. I'd like to know why that is, but I don't know the answer to that. The V11 is nice steel, for sure. I would choose it over A2, but I wouldn't choose it over a butcher iron. At this point not over a vintage stanley iron, either. My opinion might be different if all I did was smooth.
I haven't tried 3v, it should make a good plane iron.
Chisels and planes don't make good comparisons for steel. That is, what makes a chisel last well doesn't necessarily translate to a plane iron directly, especially if you factor in things like sharpenability and context. Carbon steel is not bettered in chisels at this point. If someone wants to take 1000 feet of thin shavings, you can find modern steels that will do that for longer.
I would like to see a video of your sharpening cycle. After seeing my messy shop online and the fact that I don't dress up when I make videos, nobody can claim that they need more production capability to make a video!! I have (or did until two weeks ago), the same spyderco setup and a loaded strop, but it's lacking compared to a washita and a bare leather strop. George is such a good friend that, of course, I gave that an honest try.
(I do like the CBN, though - of course!)