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Nickel 725 vs. N08221 Nickel

Both nickel 725 and N08221 nickel are nickel alloys. Both are furnished in the annealed condition. They have 79% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is nickel 725 and the bottom bar is N08221 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 260
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
79
Shear Strength, MPa 580
410
Tensile Strength: Ultimate (UTS), MPa 860
610
Tensile Strength: Yield (Proof), MPa 350
270

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 980
980
Melting Completion (Liquidus), °C 1340
1440
Melting Onset (Solidus), °C 1270
1390
Specific Heat Capacity, J/kg-K 440
460
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
44
Density, g/cm3 8.5
8.3
Embodied Carbon, kg CO2/kg material 13
7.9
Embodied Energy, MJ/kg 190
110
Embodied Water, L/kg 270
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
170
Resilience: Unit (Modulus of Resilience), kJ/m3 300
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 28
21
Strength to Weight: Bending, points 24
19
Thermal Shock Resistance, points 23
16

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.2
Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 19 to 22.5
20 to 22
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 2.3 to 15.3
22 to 33.9
Manganese (Mn), % 0 to 0.35
0 to 1.0
Molybdenum (Mo), % 7.0 to 9.5
5.0 to 6.5
Nickel (Ni), % 55 to 59
39 to 46
Niobium (Nb), % 2.8 to 4.0
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.2
0 to 0.050
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0.6 to 1.0