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View Full Version : 15n20 heat treating for a FILLET knife?



Kentucky
05-25-2010, 10:29 PM
Im gonna make a new fillet knife and am thinking about using 15n20 since I have the right size available. What temper do you suggest to give the blade just a bit of flex. If Im not istaken its either .049 or .065...In fact I think I have both. OR do you think since its already so thin it will flex enough at around 56-57rc?

Robert Mayo
05-27-2010, 05:07 AM
Flex has nothing to do with the hardness it is all about thickness. Your fillet knives will flex the same hard as they will soft so go for higher hardness and edge holding.

Bob