Nickel Alloy 59 (2.4605, N06059, NiCr23Mo16Al)
Nickel 59 is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 2.4605 is the EN numeric designation for this material. NiCr23Mo16Al is the EN chemical designation. N06059 is the UNS number. And Nickel Alloy 59 is the common industry name.
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 ductility and a moderately high melting temperature among wrought nickels.
The graph bars on the material properties cards below compare nickel 59 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 31 x 106 psi
Elongation at Break
50 %
Fatigue Strength
320 MPa 46 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
84 GPa 12 x 106 psi
Shear Strength
560 MPa 81 x 103 psi
Tensile Strength: Ultimate (UTS)
780 MPa 110 x 103 psi
Tensile Strength: Yield (Proof)
350 MPa 51 x 103 psi
Thermal Properties
Latent Heat of Fusion
330 J/g
Maximum Temperature: Mechanical
990 °C 1810 °F
Melting Completion (Liquidus)
1500 °C 2740 °F
Melting Onset (Solidus)
1450 °C 2640 °F
Specific Heat Capacity
430 J/kg-K 0.1 BTU/lb-°F
Thermal Conductivity
10 W/m-K 6.0 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
65 % relative
Density
8.7 g/cm3 540 lb/ft3
Embodied Carbon
12 kg CO2/kg material
Embodied Energy
160 MJ/kg 69 x 103 BTU/lb
Embodied Water
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
320 MJ/m3
Resilience: Unit (Modulus of Resilience)
280 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
25 points
Strength to Weight: Bending
22 points
Thermal Diffusivity
2.7 mm2/s
Thermal Shock Resistance
15 points
Alloy Composition
| Ni | 56.2 to 62.9 | |
| Cr | 22 to 24 | |
| Mo | 15 to 16.5 | |
| Fe | 0 to 1.5 | |
| Mn | 0 to 0.5 | |
| Al | 0.1 to 0.4 | |
| Cu | 0 to 0.5 | |
| Co | 0 to 0.3 | |
| Si | 0 to 0.1 | |
| P | 0 to 0.015 | |
| C | 0 to 0.010 | |
| S | 0 to 0.010 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B575: Standard Specification for Low-Carbon Nickel-Chromium-Molybdenum, Low-Carbon Nickel-Chromium-Molybdenum-Copper, Low-Carbon Nickel- Chromium-Molybdenum-Tantalum, and Low-Carbon Nickel- Chromium-Molybdenum-Tungsten Alloy Plate, Sheet, and Strip
ASTM B574: Standard Specification for Low-Carbon Nickel-Chromium-Molybdenum, Low-Carbon Nickel-Molybdenum-Chromium-Tantalum, Low-Carbon Nickel-Chromium-Molybdenum-Copper, and Low-Carbon Nickel-Chromium-Molybdenum-Tungsten 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
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998