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Usefulness of M42 steel

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Good morning all,

     I recently had a friend give me some lengths if metal band saw blades that are made of M42. Ive not found much info regarding its usefulness for forging into knives. I assume that is because pro vers con it’s not a good choice. Any of you have experience with forging  and heat treating M42? Would it be useful in a San Mai blade. 


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Check out this thread on M2.  Then keep in mind that M42 would be even worse.  There is a lot of alloy content in there, and that makes forging a nightmare.  The M series is not really for the non-automated sort of work.  


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