Damascus Steel

Damascus steel is a historic type of crucible steel used from roughly the third century CE onward to forge swords prized for their distinctive wavy or watered surface pattern and their reputation for exceptional sharpness combined with toughness. The blades were forged in the Middle East from ingots of wootz steel imported from India and Sri Lanka, the ingot's own microstructure of carbide bands producing the characteristic pattern once the smith forged, folded and etched the finished blade. Production of genuine Damascus steel declined and the original technique was lost by around the eighteenth century, most likely because the specific trace-element composition of the imported wootz ore that produced the pattern became unavailable, and modern metallurgists have not fully agreed on every detail of how the original smiths achieved the effect, though pattern-welded blades are sometimes marketed today under the same name despite being made by a different process.