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- Dec 13, 2008
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The reason I ask is that 4140 on its best day is hardenable to about 55RC-56RC(thats according to several heat treat books )..A 400* temper leaves you pretty close to that. I personally like a axe at about the 55rc-56rc range..I also like something that I can harden to a higher hardness and then temper back to that point, I cant do that with 4140 but its a tough steel and people seem to like it in the 53rc-54rc range of hardness..
Whats your thoughts on axe bit hardness in general and 4140 in a 53rc-54rc hardness? Any opinion appreciated..Thanks
Whats your thoughts on axe bit hardness in general and 4140 in a 53rc-54rc hardness? Any opinion appreciated..Thanks