Strange pattern

A. G. Maisey · Yesterday, 10:42 PM

This is a laminated blade that has been produced from ferric material with varying levels of carbon, it is also possible that the entire blade was quenched during heat treat, rather than just the cutting edge. It is possible that the lighter coloured material contains some nickel, it could well be iron from Sulawesi.

Personally, I would simply oil & use steel wool on it, the variation in blade colour tells a story.

Yesterday, 10:42 PM	#2
A. G. Maisey Member Join Date: May 2006 Posts: 7,239	This is a laminated blade that has been produced from ferric material with varying levels of carbon, it is also possible that the entire blade was quenched during heat treat, rather than just the cutting edge. It is possible that the lighter coloured material contains some nickel, it could well be iron from Sulawesi. Personally, I would simply oil & use steel wool on it, the variation in blade colour tells a story.