Böhler (or Boehler) A911 is a super duplex ferritic-austenitic chromium-nickel-molybdenum stainless steel with excellent resistance to stress-corrosion cracking, pitting, and crevice corrosion. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SS-1119. Producer or source: Böhler-Uddeholm Specialty Metals Inc..