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Automotive Grey Cast Iron vs. SAE-AISI 1118 Steel

Both automotive grey cast iron and SAE-AISI 1118 steel are iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is automotive grey cast iron and the bottom bar is SAE-AISI 1118 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 280
140
Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 9.6 to 14
13
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 69 to 70
73
Tensile Strength: Ultimate (UTS), MPa 140 to 290
490
Tensile Strength: Yield (Proof), MPa 94 to 200
410

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
250
Melting Completion (Liquidus), °C 1380 to 1390
1460
Melting Onset (Solidus), °C 1340 to 1350
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 41 to 43
52
Thermal Expansion, µm/m-K 12 to 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
8.1

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
61
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 5.2 to 11
17
Strength to Weight: Bending, points 8.0 to 13
18
Thermal Diffusivity, mm2/s 11 to 12
14
Thermal Shock Resistance, points 4.2 to 8.6
15