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SAE-AISI T8 Steel vs. Austenitic Nodular Cast Iron

Both SAE-AISI T8 steel and austenitic nodular cast iron are iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T8 steel and the bottom bar is austenitic nodular cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180 to 190
Poisson's Ratio 0.29
0.29 to 0.3
Shear Modulus, GPa 78
70 to 72
Tensile Strength: Ultimate (UTS), MPa 780 to 2140
430 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
280 to 350
Melting Completion (Liquidus), °C 1730
1340 to 1400
Melting Onset (Solidus), °C 1670
1300 to 1360
Specific Heat Capacity, J/kg-K 420
470 to 490
Thermal Expansion, µm/m-K 12
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 45
16 to 25
Density, g/cm3 9.0
7.7 to 8.0
Embodied Carbon, kg CO2/kg material 10
3.5 to 4.9
Embodied Energy, MJ/kg 160
48 to 68
Embodied Water, L/kg 120
91 to 120

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
24 to 25
Strength to Weight: Axial, points 24 to 66
15 to 18
Strength to Weight: Bending, points 21 to 41
16 to 18
Thermal Shock Resistance, points 24 to 66
12 to 15