Will a rebar knife harden properly with an oil or water quench? The subject of heat-treating is controversial when it comes to rebar and a lot of other "mystery" steel. Here I prove that you can indeed harden a knife made of rebar, at least some types of rebar, but what's the best approach? How brittle will it be? Should you temper? Will it hold an edge?
Unfortunately some of these question are left unanswered in this test, but I will be doing another rebar knife test soon. Probably focusing on tempering and edge retention comparisons.
More to come.
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