Tag Archives: GRANTA MI

Lightweight aluminum beryllium alloys

MIThe 22nd MMPDS Coordination Meeting was held last week (October 23-26), with members meeting to discuss the ongoing development of the Metallic Materials Properties Development and Standardization (MMPDS) data. But what is MMPDS, and who uses it? A good way to find out is to take one of the new materials in the latest release, and ask some questions about why it’s in there. Lightweighting is certainly a hot topic at the moment, so perhaps the lightweight aluminum beryllium alloy (AMS 7911) highlighted in MMPDS-06 would be a good example. Continue reading

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