Damascus steel was named for a market town that probably never smelted it
The rippling blades sold in Damascus were mostly forged from wootz ingots shipped in from southern India, and the city itself shows no trace of making crucible steel. The name may have been an early brand. Meanwhile one famous story of how the steel was tempered traces back to a Chicago newspaper prank in 1894.
Damascus steel is a high-carbon crucible steel whose surface shows bands and mottling like running water, sometimes arranged as a ladder or a rose. Swordsmiths prized it for resisting shattering while taking and keeping a keen edge. The technique began in India and Sri Lanka, and from the 3rd to the 17th century ingots travelled from South India to the Middle East, where Arab traders brought them to Damascus and a weapons trade flourished. Crucible steel was also produced in Khorasan, Merv and Yazd.
Where the name comes from is disputed. Arabic damas relates to watering, fitting blades often called watered steel. The scholar al-Kindi used Damascene for swords made in the city, though he mentioned no pattern, and al-Biruni wrote of a smith called Damasqui. The commonest view links it to sales in Damascus, much as damask cloth took the city's name.
Legends grew around the blades, which were said to slice iron bars unharmed or part a falling strand of silk. A claim that smiths hardened them by plunging them into an enslaved person began in the Chicago Tribune on 4 November 1894, credited to a Prof. von Eulenspiegel, the name of a medieval German trickster. Laboratory tests are less dramatic but still flattering: one sword showed a yield strength of 740 MPa, against 550 for comparable hot-rolled steel. A 2006 German study reported carbon nanotubes in a blade, though John Verhoeven suggested the rods were cementite.
Production faded and stopped around 1900; the last recorded account, from Sri Lanka, dates to 1903. Later gunsmiths applied the label to pattern-welded barrels made without crucible steel. One theory holds that long disruptions to the distant trade routes cut off supply until the craft was lost.
Source: Damascus steel
