There are certainly true knife experts on here so if one of them can provide a more detailed answer, I defer my response to them.

There are no marking on the blade to discern the type of alloy/metal it is. A website states only that it is, "High Carbon Stainless Steel"

I measured blade thickness right above the grip handle, and below the fire starter striking area on the spine. It measured 1/8 inch.

Hope that answers your question.