claim: Jack Dylan Grazer directed a film on September 3, 2003.
evidence: AerMet alloy is an ultra-high strength type of martensitic alloy steel .. martensitic. martensitic. alloy steel. alloy steel. The main alloying elements are cobalt and nickel , but chromium , molybdenum , and carbon are also added .. cobalt. cobalt. nickel. nickel. chromium. chromium. molybdenum. molybdenum. carbon. carbon. Its exceptional properties are hardness , tensile strength , fracture toughness , and ductility .. hardness. hardness. tensile strength. tensile strength. fracture toughness. fracture toughness. ductility. ductility. Aermet is weldable with no preheating needed .. AerMet alloy is not corrosion resistant , so it must be sealed if used in a moist environment .. AerMet is a registered trademark of Carpenter Technology Corporation .. Three types of AerMet alloys are currently available  : AerMet 100 -LRB- also known as AerMet-for-Tooling -RRB- , AerMet 310 , and AerMet 340 alloy .. Examples of applications include armor , fasteners , airplane landing gear , ordnance , jet engine shafts , structural members , and drive shafts .