This also means that there will be longer periods between sharpening time. S30V also has a nitrogen addition , a point not often recognized since the nitrogen is not listed in the â¦ S30V quickly became a favorite for knife manufacturers in the 2000s. The replacement of vanadium and carbon with niobium and nitrogen produces an excellent combination of wear and corrosion resistance, edge retention, and toughness making this the ideal choice in the manufacture of knives. Composition of S45VNAs the latest evolution of alloy steel, S45NV has increased amounts of chromium to help increase corrosion resistance over the earlier generation of S35VN. Eventually though, CRK introduced S30V steel, which Chris was directly involved â¦ However, in testing of that steel Chris Reeve Knives wanted more wear resistance to better differentiate from BG42, leading to an increase in vanadium up to the final 4%. S30V â 2000°F. According to the chemical composition and the HRC of the steel, the CPM s90v Steel has the following features: CPM s90v Edge Retention: With a high presence of vanadium and carbon, s90v steel offers extreme edge retention (might be the best in the steel). I run the pre-sharpened edge thickness a bit higher than most at around .040". 2% Total votes: 131 View results. The corrosion resistance of S30V and the similar S35VN have been found to be better than CPM-154, in a range I would call âabove average.â The corrosion resistance has been improved somewhat with the new S45VN, but S30V is good enough for many knives. As shown in the datasheet, S30V can reach at least 64 Rc when using cold treatments, and can easily be tempered down to the 58-61 Rc range common for many knives. 5% S30V. https://www.patreon.com/Knifesteelnerds, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). S30V is a knife steel produced by Crucible, released at the end of 2001 .  http://www.seamountknifeworks.com/js/web/viewer.html?file=articles/pdf/S30V_update.pdf. Crucible's goal was to create an even tougher steel that didn't sacrifice resistance to corrosion, and they did that by using niobium carbides in place of some of S30V's vanadium â¦ Some furnaces are limited to relatively low temperatures, and at the time of the release of S30V, there were many knifemakers with Paragon brand furnaces with a maximum temperature of 2000°F. Impact Energy 5 out of 5 stars (1) 1 product ratings - Spyderco Jerry Brouwer CPM-S30V Green G-10 (Newest CQI Version) C232GTIP. And less chromium carbide means that even though S90V has less chromium, less is tied up in carbides so that the chromium is free in the steel to improve corrosion resistance. S60V, however, was essentially 440C but with 5.5% vanadium added and enough carbon to maintain similar hardness potential. Toughness is better than CPM S30V, but slightly less than CPM â¦ SUMMARY: CPM 345VN steel is a high alloy stainless steel with outstanding edge retention, increased corrosion resistance, and modest toughness.  Chilton’s iron age 226, no. I would argue that S30V is better for every practical need. Notify me of follow-up comments by email. The addition of niobium is reflected with the addition of N in the name which is absent in the S30V. 440C 2.5 ft. lbs. You can read more about carbide types and how elements interact to lead to different amounts in this article on carbides. It was designed in conjunction with knife companies, knifemakers, and heat treaters to learn the properties that they wanted in a knife steel.