James A. Parsons Jr. (1900–1989 metallurgist and inventor renowned for developing Durimet 20By Victor KakuluMarch 3, 2025 James A. Parsons Jr. (1900–1989) was a pioneering metallurgist and inventor renowned for developing Durimet 20, also known as Alloy 20, a corrosion-resistant stainless steel alloy.…