You'll have a larger quantity of combined W+V in SRS-15 vs. just V in R2. In addition, R2 will have more Cr than SRS-15. The greater quantity of W+V on top of the lesser quantity of Cr should result in lower corrosion resistance as well. For what it's worth, I only have one knife in SRS-15 and several in R2 and I anecdotally find the SRS-15 to be less tough at comparable edge geometry than my R2 knives. In all likelihood that's tied in more to specific heat treatment of the two steels, but I'm no @Larrin so maybe he wants to chime in. I'm not trying to say it's a massive difference, but there's more of a compositional difference between the two than, say, 52100 and 1095.yeah but in general its very similar imo. I have several knives in both steels. and there is no practical difference at all. tungsten is just another carbide former. just like V. and they do pretty much the same thing. V carbides are harder and smaller though i think. they are also both grain refiners.
they used to make V steel where V was abundant in the crust and W steel where W was abundant in the crust.