Nimonic 115™ is a high-strength nickel-based superalloy known for its exceptional performance at elevated temperatures, excellent oxidation and corrosion resistance, and superior mechanical properties. Developed for demanding applications in aerospace, gas turbine engines, and other high-temperature environments, Nimonic 115™ offers reliability and durability under extreme conditions.
Chemical Composition
Element
Composition (%)
Nickel (Ni)
54.0-59.0
Chromium (Cr)
15.0-19.0
Cobalt (Co)
15.0-19.0
Iron (Fe)
5.0 max
Molybdenum (Mo)
2.5-4.0
Titanium (Ti)
1.0-2.0
Aluminum (Al)
0.5-1.5
Carbon (C)
0.15 max
Silicon (Si)
0.5 max
Manganese (Mn)
0.5 max
Sulfur (S)
0.015 max
Phosphorus (P)
0.015 max
Mechanical Properties
Property
Value
Tensile Strength (RT)
960 MPa (139 ksi) min
Yield Strength (0.2% offset) (RT)
720 MPa (105 ksi) min
Elongation (RT)
20% min
Creep Rupture Strength
Excellent at high temperatures
Hardness (HV)
280-320 HV
Performance at Different Temperatures
Temperature Range
Performance
Room Temperature
High strength and corrosion resistance
Elevated Temperatures (up to 800°C / 1470°F)
Excellent creep resistance and thermal stability
Cryogenic Temperatures
Retains ductility and toughness
Industry Applications
Nimonic 115™ finds extensive use in various critical applications:
Industry
Applications
Aerospace
Turbine blades, combustion chambers
Power Generation
Gas turbine components, high-temperature fasteners
Oil & Gas
Wellhead components, valve stems
Automotive
Exhaust valves, turbocharger rotors
Shapes, Sizes, and Production Standards
Shapes and Sizes
Form
Size Range
Sheets
Thickness: 0.5 mm – 6 mm
Plates
Thickness: 1 mm – 100 mm
Bars
Diameter: 6 mm – 200 mm
Wire
Diameter: 0.1 mm – 10 mm
Forgings
Various shapes and sizes as per standards
Production Standards and Corresponding Grades
Country
Standard
Corresponding Grade
United States
AMS 5829
N07115
Germany
DIN 17752
2.4636
France
AFNOR NC 20T
–
United Kingdom
BS HR 403
HR403
Japan
JIS HR 403
–
China
GB/T 14994
–
Welding, Machining, Polishing, Heat Treatment, and Cold Working
Process
Details
Welding
TIG and MIG methods recommended; post-weld heat treatment required
Machining
Carbide tools and lubricants for optimal results
Polishing
Mechanical and electrochemical methods for desired finish
Heat Treatment
Solution annealing followed by aging
Cold Working
Cold forming and shaping processes are feasible
Advantages and Disadvantages
Aspect
Advantages
Disadvantages
Advantages
High strength and oxidation resistance
Limited availability in certain forms
Excellent creep resistance
Machining can be challenging
Good thermal stability at high temperatures
Costlier compared to some alternatives
Versatile in high-temperature applications
Similar Products
Material Grade
Comparison
Nimonic 105™
Similar composition with slight variations
Inconel® 718
Higher nickel content, different applications
Conclusion
Nimonic 115™ stands as a robust solution for applications requiring exceptional strength, corrosion resistance, and performance at elevated temperatures. Its precise chemical composition, reliable mechanical properties, and adherence to international production standards ensure reliability across critical sectors such as aerospace, power generation, and oil & gas. Engineers and designers seeking high-performance materials for demanding environments can rely on Nimonic 115™ for optimal performance and longevity.
For detailed technical specifications and customized solutions, consulting with material suppliers and referencing specific product data sheets is recommended.
