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

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

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.
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