Aermet-100
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Aermet-100 is a martensitic steel alloy with nickel, cobalt, and iron as the main components. It has high tensile strength and fracture toughness as well as exceptional ductility and toughness. Aermet-100 is weldable with no preheating needed and is commonly available in forms including billet, bar, and sheet. It is a registered trademark of Carpenter Technology Corporation and is protected under the patents 5,087,415 and 5,268,044.
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[edit] Basic Properties
Aermet-100 has a density of 7.889 g/cm³ (0.2850 lbf/in³).
[edit] Chemical Composition
The alloy composition of Aermet-100 is:
- Carbon minimum 0.2%, maximum 0.33% by weight
- Chromium minimum 2%, maximum 4%
- Nickel minimum 10.5%, maximum 15%
- Molybdenum minimum 0.75%, maximum 1.75%
- Cobalt minimum 8%, maximum 17%
- Remainder iron
[edit] Mechanical Properties
Aermet-100 is heat treated at 1625°C for an hour. It then can be aged for 5 to 8 hours to a tensile strength of 280-300 ksi or 290-310 ksi at temperatures of 900°C and 875°C respectively. In use, Aermet-100 must be kept away from moisture as it is not corrosion resistant. The alloy has a modulus of elasticity of 28,200 ksi. A table of properties can be found here. [1]