Jay,Jay_Ev wrote:OP question specifically asked about the hardening process and not the heat treating process. I never realized those two things were the same thing.
They aren't....Henry - get both wrote:At what hardnesses are s30v and s90v equal steels? 59 and 61? What is the highest hardness we have seen in s30v and what is the lowest hardness we have seen in s90v from Spyderco? How common is it to see relatively hard or relatively soft heat treats?
Equal in what respect? There are some properties which are strongly dependent on hardness, resistance of the edge to denting for example as hardness is exactly a measure of resistance to that. There are some properties which are only lightly dependent on hardness, wear resistance for example. There are also other properties which are not well correlated to hardness at all. For example if a steel was over soaked and suffered grain growth then you could end up with a steel which was brittle with retained austenite but which could easily be with the hardness tolerance for most blades (which is usually about 2 HRC points).Henry - get both wrote:At what hardnesses are s30v and s90v equal steels?
Edge retention would depend on what you are cutting and to what sharpness you are stopping and sharpening.Henry - get both wrote:Equal in what respect? I was referring to edge retention. I should have used the word "similar" instead of "equal".
Just to clarify, the sum total point of all of the above is to invoke this simple rule :Fancier wrote:This entire conversation does a great deal to explain why the world is so full of conflicting opinions with respect to knives and the steels that they are made of.
What about this Cliff? Why aren't you answering this?Cliff Stamp wrote:Just to clarify, the sum total point of all of the above is to invoke this simple rule :
-gather a lot of data from a lot of sources before you make a decision
And when you are thinking about the data just realize that people will often see what they want to see.
If you are making a decision yourself and you really want to see if you are honest, give the knife to a friend, don't tell him what you have concluded and ask his opinion.
My brother is great for this because he knows nothing about steels, he cares nothing about what knife does better than what other knife so I always give him knives I have used just as one other check.
Henry - get both wrote:Cliff,
The toughness of the two steels are about the same while the wear resistance of s90v is much higher.
s90v is flat out a superior steel to s30v. Quit dodging that fact. The performance of the two steels do not overlap because Spyderco doesn't sell s90v at 55 rockwell...
keep us updated on your tests. Pictures will be appreciated. :Dchuck_roxas45 wrote: I will also keep running at the wall hoping for the probability that one day I'll be able to walk through when the atoms align themselves in the proper way. :D :p
It isn't a question, it is a baseless assertion on an nonsensical assumption. You however have always been respectful with a decent sense of humor and if you need clarification on anything I wrote in the above by all means just ask.chuck_roxas45 wrote:What about this Cliff? Why aren't you answering this?
Ankerson wrote:They aren't....
The results could be hidden if:
S30V at 61 HRC and S90V at 55 HRC with a really bad HT....
Ok, my apologies but as the post I was referring to say, Spyderco aims it's s90v in around a range of 58-59 Rc and it's s30v at 58-60 Rc. so will there be any overlaps? Please make your explanation understandable to a backward teenager's mental level(around which mine is too).Cliff Stamp wrote:It isn't a question, it is a baseless assertion on an nonsensical assumption. You however have always been respectful with a decent sense of humor and if you need clarification on anything I wrote in the above by all means just ask.
