Activity

Earliest Archaeological Evidence, A Persian Manuscript, Indicates That Stainless Steel (SS) Were Not Recent Innovation. But That A Version Of It Was Produced In Chahak, Iran, 1000 Years Ago By Ancient Persians. This Version, Which Contains Phosphorus And Less Chromium Than Modern SS, Were Likely Used In Producing, E.G., Fighting Tools.

1,000-Year-Old Precursor to Stainless Steel Found in Iran, Surprising Archaeologists

https://gizmodo.com/1-000-year-old-precursor-to-stainless-steel-found-in-ir-1845145184

Chromium steel, commonly referred to as stainless steel, is thought to be a recent manufacturing innovation, but new evidence suggests ancient Persians stumbled upon an early version of this alloy some 1,000 years ago, in what is a surprise to archaeologists.