<font face="Verdana, Arial" size="2">Originally posted by Jeff O:
I hear that D2 is tougher than 52100(I could be wrong) but for me that is not a major quality that I look for in a 110. However, I have a Marble's in 52100 that holds an incredible edge, and would like to see that steel offered on a 110.
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Heat treated to identical hardnesses, 52100 should be a good bit tougher than D2 actually. D2 isn't really very tough in the scheme of things... well below 3V, 10V, and any of the simpler carbon steels at a given Rockwell hardness. D2 is really designed for abrasion resistance. That doesn't mean D2 isn't tough enough for a slicing type blade, but I wouldn't have a big chopper type knife built out of D2. Most any carbon steel would be a better fit.
From a Crucible handbook I have, D2 is about 1/2 as tough as A2, and I would suspect A2 and 52100 would be close enough for this discussion. (Crucible is stating the Charpy impact toughness for comparison).
Also, question for Pete.... does anyone make 52100 in a flat stock suitable for easy blade making? I know Marbles is doing blades of 52100. Does Marbles machine/hammer forge? Hand forge? Or are they doing stock removal on this stuff? They do bother to put a flat grind and then convex edge on the blades...
But short of a big production run to get economies of scale going from someone who would do a run of 52100 flat stock, I believe most of the bladesmiths still take big 3" diameter ball bearings of 52100 and forge it to shape.
Would Buck buy a big enough lot to get flat stock?
[This message has been edited by rdangerer (edited 06-27-2001).]