Tag Archives: GRANTA MI

100 Years of Stainless Steel

oil-rigGranta’s recent trip to MS&T in Pittsburgh, the Steel City, reminded me that this year marks a hundred years since the invention of stainless steel, or at least since the first patents were granted to Strauss and Maurer in 1912 for the austenitic stainless steel they branded Nirosta. At about the same time in Sheffield, England, Harry Brearley discovered a corrosion resistant martensitic alloy which, although designed for gun barrels, first found fame                                     as the new, shiny entrance canopy material for the Savoy Hotel. Continue reading