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SAE-AISI T8 Steel vs. N08120 Nickel

SAE-AISI T8 steel belongs to the iron alloys classification, while N08120 nickel belongs to the nickel alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T8 steel and the bottom bar is N08120 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 780 to 2140
700

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1730
1420
Melting Onset (Solidus), °C 1670
1370
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 18
11
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 45
45
Density, g/cm3 9.0
8.2
Embodied Carbon, kg CO2/kg material 10
7.2
Embodied Energy, MJ/kg 160
100
Embodied Water, L/kg 120
240

Common Calculations

PREN (Pitting Resistance) 30
35
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24 to 66
24
Strength to Weight: Bending, points 21 to 41
21
Thermal Diffusivity, mm2/s 4.8
3.0
Thermal Shock Resistance, points 24 to 66
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.75 to 0.85
0.020 to 0.1
Chromium (Cr), % 3.8 to 4.5
23 to 27
Cobalt (Co), % 4.3 to 5.8
0 to 3.0
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 69.3 to 75.4
21 to 41.4
Manganese (Mn), % 0.2 to 0.4
0 to 1.5
Molybdenum (Mo), % 0.4 to 1.0
0 to 2.5
Nickel (Ni), % 0 to 0.3
35 to 39
Niobium (Nb), % 0
0.4 to 0.9
Nitrogen (N), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 13.3 to 14.8
0 to 2.5
Vanadium (V), % 1.8 to 2.4
0