How does folded Damascus steel differ from T10 in these aikuchi?
Updated Feb 2026
Folded Damascus steel is created by layering and forge-welding multiple sheets of steel, then folding the billet repeatedly. This produces the distinctive wavy or woodgrain-like surface pattern visible on the flat of the blade — no two are identical. T10 steel, by contrast, is a single high-carbon tungsten-alloy steel commonly clay-tempered to create a hamon line along the edge. Damascus pieces are prized for their visual complexity and the artisan skill required to forge them, while T10 blades are valued for their hardness, resilience, and the dramatic contrast between the hardened edge and softer spine revealed by differential tempering.