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SAE-AISI O2 Steel vs. N08221 Nickel

SAE-AISI O2 steel belongs to the iron alloys classification, while N08221 nickel belongs to the nickel alloys. They have a modest 29% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O2 steel and the bottom bar is N08221 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
79
Tensile Strength: Ultimate (UTS), MPa 640 to 2050
610

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
44
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.8
7.9
Embodied Energy, MJ/kg 26
110
Embodied Water, L/kg 50
240

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 73
21
Strength to Weight: Bending, points 21 to 46
19
Thermal Shock Resistance, points 22 to 70
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 0.85 to 1.0
0 to 0.025
Chromium (Cr), % 0 to 0.5
20 to 22
Copper (Cu), % 0 to 0.25
1.5 to 3.0
Iron (Fe), % 95 to 97.8
22 to 33.9
Manganese (Mn), % 1.4 to 1.8
0 to 1.0
Molybdenum (Mo), % 0 to 0.3
5.0 to 6.5
Nickel (Ni), % 0 to 0.3
39 to 46
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.050
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.0
Vanadium (V), % 0 to 0.3
0