UNS N08026 Nickel Alloy
N08026 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. It has a moderately low embodied energy among wrought nickels. In addition, it has a moderately low base cost and a moderately low tensile strength.
The graph bars on the material properties cards below compare N08026 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
200 GPa 30 x 106 psi
Elongation at Break
34 %
Fatigue Strength
200 MPa 29 x 103 psi
Poisson's Ratio
0.28
Shear Modulus
80 GPa 12 x 106 psi
Shear Strength
410 MPa 60 x 103 psi
Tensile Strength: Ultimate (UTS)
620 MPa 90 x 103 psi
Tensile Strength: Yield (Proof)
270 MPa 39 x 103 psi
Thermal Properties
Latent Heat of Fusion
310 J/g
Maximum Temperature: Mechanical
990 °C 1820 °F
Melting Completion (Liquidus)
1430 °C 2610 °F
Melting Onset (Solidus)
1380 °C 2520 °F
Specific Heat Capacity
460 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
12 W/m-K 7.0 BTU/h-ft-°F
Thermal Expansion
15 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.6 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.7 % IACS
Otherwise Unclassified Properties
Base Metal Price
41 % relative
Density
8.2 g/cm3 510 lb/ft3
Embodied Carbon
7.2 kg CO2/kg material
Embodied Energy
98 MJ/kg 42 x 103 BTU/lb
Embodied Water
240 L/kg 29 gal/lb
Common Calculations
PREN (Pitting Resistance)
45
Resilience: Ultimate (Unit Rupture Work)
170 MJ/m3
Resilience: Unit (Modulus of Resilience)
180 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
20 points
Thermal Diffusivity
3.2 mm2/s
Thermal Shock Resistance
15 points
Alloy Composition
| Ni | 33 to 37.2 | |
| Fe | 24.4 to 37.9 | |
| Cr | 22 to 26 | |
| Mo | 5.0 to 6.7 | |
| Cu | 2.0 to 4.0 | |
| Mn | 0 to 1.0 | |
| Si | 0 to 0.5 | |
| N | 0.1 to 0.16 | |
| C | 0 to 0.030 | |
| P | 0 to 0.030 | |
| S | 0 to 0.030 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B729: Standard Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube
ASTM B463: Standard Specification for UNS N08020, UNS N08026, and UNS N08024 Alloy Plate, Sheet, and Strip
ASTM B464: Standard Specification for Welded UNS N08020, N08024, and N08026 Alloy Pipe
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
Welding Metallurgy and Weldability of Nickel-Base Alloys, John C. Lippold et al., 2009
Metallic Materials: Physical, Mechanical, and Corrosion Properties, Philip A. Schweitzer, 2003
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998