Super alloys can be strengthened by precipitation hardening, solid-solution hardening and work hardening methods. These alloys can function under high mechanical stress and high temperatures and also in places that require high surface stability.Nimonic 115 is a nickel-chromium-cobalt-molybdenum alloy that can be precipitation-hardened. It has and suitable for oxidation resistance and high temperature strength. Equivalent Grades Alloy Name Trade Name UNS No. British Specs American Specs German Specs French Specs Alloy 115 Nimonic 115 BS HR4 WS 2.4636 AFNOR NCK 15ATD Nimonic 115 chemical composition Element Content (%) Nickel, Ni 54 Chromium, Cr 14.0-16.0 Cobalt, Co 13.0-15.5 Aluminum, Al 4.50-5.50 Molybdenum, Mo 3.0-5.0 Titanium, Ti 3.50-4.50 Iron, Fe 1.0 Manganese, Mn 1.0 Silicon, Si 1.0 Copper, Cu 0.20 Zirconium, Zr 0.15 Carbon, C 0.12-0.20 Sulfur, S 0.015 Boron, B 0.010-0.025 Nimonic 115 physical properties Properties Metric Imperial Density 7.85 g/cm³ 0.284 lb/in³ Melting point 1304°C 2380°F Nimonic 115 mechanical properties Properties Metric Imperial Tensile strength (precipitation hardened, value at room temperature) 1300 MPa 189000 psi Yield strength (precipitation hardened, value at room temperature, @strain 0.200%) 850 MPa 123000 psi Elongation at break (precipitation hardened) 25.00% 25.00%