I'm sure there are many others who can explain it better than me but from what I understand, of the many ways to get a Damascus looking knife, one of them is to forge weld (read: heat to high temp then hammer together) your core steel (SG2 in this case) in between two layers of steel, often Iron, that has been laminated with a Damascus pattern. On the other hand an actual Damascus blade is one where the entire knife is comprised of the Damascus Steel, a composite steel where several layers of different steel have been repeatedly folded, welded, cut and reassembled creating that pattern, such that, theoretically, the cutting edge is also comprised of that pattern too. Of course the Damascus layering shouldn't impact the quality of the SG2 edge quality and subsequent knife performance (except for any stickiness issues sometimes caused by Damascus finishes). I hope that helps even a little but I'd look for better answers from people more experienced than me!