Aermet
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AerMet alloy is an ultra-high strength type of martensitic[1] alloy steel. The main alloying elements are cobalt and nickel, but chromium, molybdenum and carbon are also added. Its exceptional properties are hardness, tensile strength, fracture toughness and ductility.[2] Aermet is weldable with no preheating needed.[3] 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 (also known as AerMet-for-Tooling), AerMet 310 and AerMet 340 alloy.
Examples of applications include armor, fasteners, airplane landing gear, ordnance, jet engine shafts, structural members and drive shafts.[2]