I will say that 420v IMHO will hold an edge and take more TORQUE thans O1. I feel that bending tests should be measured in torque to break instead of degrees to break. As for edge holding 420v does it better buy a long shot. It is one of the only stainless steels along with 440v that hold an edge IMHO
as long as the good carbons.
I AM A CARBON LOVER! I FORGE DAMASCUS AND CARBON BLADES! So It takes a lot for me to say that 420 and 440v are as good.
Thats what drove me to building knives with this material 2 years ago.. ITS FANTASIC STUFF!!!!!!
Here a test that is a good one IMHO.
I build 4 blades of different stainless steel. All are heat treated to the optimun specs.
They are very simular in grind and edge shape. Then I mark they as to the steel they are. Then I tape the handles so I dont know which knife is which. Then I cut silicon carbide sandpaper disks until they dull.
I write on the handle (tape) how many disks I did before the blade went dull.
420v always wins!!!
I have done other testing to see if I was crazy but nope everything I cut except hair
420v always wins.
In the tourqe test 420v and 440v always win.
The way the grain is put together is what makes this material what it is.
As for a big knife. Thats the next project..
I will make a 9 in bladed bad boy to be tested . It will be thin (3/16) and made with full flat grind geometry. I have a feeling it will be a screamer. I am also making one it 3v. The winner gets to be the steel for my new field knife set.
I have tested these steels on many items . I just feel they are the best ALL around steels for stainless kniofe blade on the market today. I my testing I must say that a 5 % variable is given for edge grind ect.. I am not a machine when it comes to grinding.
10v and 15v are tough also. I still feel that the 420v and 440v are the best blade steels because of flexabilty. 3 v is the next venture for me ...
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[This message has been edited by Darrel Ralph (edited 11 November 1999).]