Q1571In 1913 a Sheffield metallurgist was trying to make gun barrels last longer. His experiment failed and the samples went on the scrap pile — where he noticed weeks later that one of them had not rusted.
Harry Brearley left school at twelve and taught himself chemistry in the evenings. Adding chromium to steel had not solved the erosion problem he was hired to fix, so the offcuts were discarded. Passing the heap later, he saw one sample still bright while the rest had gone brown — chromium forms an invisible oxide film that seals the surface. He saw at once that it belonged in cutlery rather than artillery. Sheffield called it 'rustless steel' at first, and the world eventually settled on stainless.






