Nickel Alloy 22 (2.4602, N06022, NiCr21Mo14W)
Nickel 22 is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 2.4602 is the EN numeric designation for this material. NiCr21Mo14W is the EN chemical designation. N06022 is the UNS number. And Nickel Alloy 22 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 among the wrought nickels in the database.
The graph bars on the material properties cards below compare nickel 22 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
49 %
Fatigue Strength
330 MPa 47 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
84 GPa 12 x 106 psi
Shear Strength
560 MPa 82 x 103 psi
Tensile Strength: Ultimate (UTS)
790 MPa 120 x 103 psi
Tensile Strength: Yield (Proof)
360 MPa 53 x 103 psi
Thermal Properties
Latent Heat of Fusion
320 J/g
Maximum Temperature: Mechanical
990 °C 1810 °F
Melting Completion (Liquidus)
1390 °C 2540 °F
Melting Onset (Solidus)
1360 °C 2470 °F
Specific Heat Capacity
430 J/kg-K 0.1 BTU/lb-°F
Thermal Conductivity
10 W/m-K 5.8 BTU/h-ft-°F
Thermal Expansion
11 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.5 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.5 % IACS
Otherwise Unclassified Properties
Base Metal Price
70 % relative
Density
8.9 g/cm3 560 lb/ft3
Embodied Carbon
12 kg CO2/kg material
Embodied Energy
170 MJ/kg 71 x 103 BTU/lb
Embodied Water
300 L/kg 35 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
320 MJ/m3
Resilience: Unit (Modulus of Resilience)
300 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
22 points
Strength to Weight: Axial
25 points
Strength to Weight: Bending
21 points
Thermal Diffusivity
2.7 mm2/s
Thermal Shock Resistance
24 points
Alloy Composition
| Ni | 50.8 to 63 | |
| Cr | 20 to 22.5 | |
| Mo | 12.5 to 14.5 | |
| Fe | 2.0 to 6.0 | |
| W | 2.5 to 3.5 | |
| Co | 0 to 2.5 | |
| V | 0 to 0.35 | |
| Si | 0 to 0.080 | |
| P | 0 to 0.020 | |
| S | 0 to 0.020 | |
| C | 0 to 0.015 | |
| Mn | 0 to 0.015 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
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 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 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
ASM Specialty Handbook: Nickel, Cobalt, and Their Alloys, Joseph R. Davis (editor), 2000
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998