Woodsy,
Several years ago, I looked on the Victorinox site and they had information on the "ingredients" in the steel and the hardness of the blades of various tools. The site was modified and I have not been able to find it since, but I did print the page. Basically, I think feline vet has summarized it very nicely, but I will see if I can find the printed pages. Can't promise, as my wife has been on a cleaning binge lately! Anyway, if I do find it, I will post the information I have.
Neil