UNS N10665 (2.4617, NiMo28) Nickel-Molybdenum Alloy
N10665 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 2.4617 is the EN numeric designation for this material. NiMo28 is the EN chemical designation. And N10665 is the UNS number.
This material is well established: the Further Reading section below cites a number of published standards, and that list is not necessarily exhaustive.
It has a moderately high melting temperature among wrought nickels. In addition, it has a moderately low heat capacity and a moderately high embodied energy.
The graph bars on the material properties cards below compare N10665 nickel to: wrought nickels (top), all nickel alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
220 GPa 32 x 106 psi
Elongation at Break
45 %
Fatigue Strength
340 MPa 49 x 103 psi
Poisson's Ratio
0.31
Rockwell B Hardness
86
Shear Modulus
84 GPa 12 x 106 psi
Shear Strength
600 MPa 87 x 103 psi
Tensile Strength: Ultimate (UTS)
860 MPa 120 x 103 psi
Tensile Strength: Yield (Proof)
400 MPa 57 x 103 psi
Thermal Properties
Latent Heat of Fusion
310 J/g
Maximum Temperature: Mechanical
900 °C 1660 °F
Melting Completion (Liquidus)
1620 °C 2950 °F
Melting Onset (Solidus)
1570 °C 2850 °F
Specific Heat Capacity
390 J/kg-K 0.093 BTU/lb-°F
Thermal Conductivity
11 W/m-K 6.4 BTU/h-ft-°F
Thermal Expansion
10 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.2 % IACS
Otherwise Unclassified Properties
Base Metal Price
75 % relative
Density
9.3 g/cm3 580 lb/ft3
Embodied Carbon
15 kg CO2/kg material
Embodied Energy
200 MJ/kg 84 x 103 BTU/lb
Embodied Water
270 L/kg 32 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
320 MJ/m3
Resilience: Unit (Modulus of Resilience)
360 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
22 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
22 points
Thermal Diffusivity
3.1 mm2/s
Thermal Shock Resistance
27 points
Alloy Composition
| Ni | 64.8 to 74 | |
| Mo | 26 to 30 | |
| Fe | 0 to 2.0 | |
| Mn | 0 to 1.0 | |
| Cr | 0 to 1.0 | |
| Co | 0 to 1.0 | |
| Si | 0 to 0.1 | |
| P | 0 to 0.040 | |
| S | 0 to 0.030 | |
| C | 0 to 0.020 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B333: Standard Specification for Nickel-Molybdenum Alloy Plate, Sheet, and Strip
ASTM B335: Standard Specification for Nickel-Molybdenum Alloy Rod
ASTM B462: Standard Specification for Forged or Rolled UNS N06030, UNS N06022, UNS N06035, UNS N06200, UNS N06059, UNS N06686, UNS N08020, UNS N08024, UNS N08026, UNS N08367, UNS N10276, UNS N10665, UNS N10675, UNS N10629, UNS N08031, UNS N06045, UNS N06025, and UNS R20033 Alloy Pipe Flanges, Forged Fittings, and Valves and Parts for Corrosive High-Temperature Service
ASTM B619: Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Pipe
ASTM B626: Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Tube
ASTM B622: Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube
ASTM B564: Standard Specification for Nickel Alloy Forgings
Welding Metallurgy and Weldability of Nickel-Base Alloys, John C. Lippold et al., 2009
ASM Specialty Handbook: Nickel, Cobalt, and Their Alloys, Joseph R. Davis (editor), 2000
Machining of Stainless Steels and Super Alloys: Traditional and Nontraditional Techniques, Helmi A. Youssef, 2016