Tempering a Railroad Spike

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On 7/26/2011 at 8:48 PM, MattBower said:

In theory, with a severe quench, 0.3% carbon steel could achieve RC 55, …….. But if you're going to do the work to forge a spike into a knife, for a few bucks you could use a real high carbon steel, do about the same amount of work, and produce a serious blade.

Thanks for saying that 

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