We consider this the absolute best blade steel available, and it is made in America. S30V contains carbon as well as high amounts of Chromium, Molybdenum and Vanadium. This steel combines fantastic edge retention and high ductility combined with corrosion resistance. Double-tempered - it can be hardened to a Rockwell hardness of Rc 59.5-61. However, it is difficult to resharpen yourself, but we do offer sharpening services for a nominal fee.
This is Buck's standard blade material because it approaches the wear resistance of high carbon alloys while delivering the corrosion resistance of chromium stainless steels. Add our exclusive heat-treat process and you have a very user-friendly combination of superior corrosion resistance with excellent strength for wear resistance and durability. You also have a blade that is easy to resharpen. For best performance we harden to a Rockwell hardness of Rc 58.
I bought this knife for my father-in-law over 30 years ago. He passed away in 1987 and the knife sat in a desk drawer until 2009 when our town experienced extensive flooding. This knife was wet for about 4 months until my wife and I found it and some other pocket knives. The knife was as good as new. This goes to show the quality and durability of Buck knives.