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Grade TDC Steel vs. Automotive Grey Cast Iron

Both grade TDC steel and automotive grey cast iron are iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade TDC steel and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
69 to 70
Tensile Strength: Ultimate (UTS), MPa 1700
140 to 290

Thermal Properties

Latent Heat of Fusion, J/g 250
260 to 280
Melting Completion (Liquidus), °C 1450
1380 to 1390
Melting Onset (Solidus), °C 1410
1340 to 1350
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 51
41 to 43
Thermal Expansion, µm/m-K 13
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.9 to 3.0
Density, g/cm3 7.8
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 1.4
1.5 to 1.7
Embodied Energy, MJ/kg 19
21 to 24
Embodied Water, L/kg 47
44 to 51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60
5.2 to 11
Strength to Weight: Bending, points 40
8.0 to 13
Thermal Diffusivity, mm2/s 14
11 to 12
Thermal Shock Resistance, points 50
4.2 to 8.6