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Automotive Grey Cast Iron vs. AWS E240

Both automotive grey cast iron and AWS E240 are iron alloys. 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 automotive grey cast iron and the bottom bar is AWS E240.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6 to 14
17
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69 to 70
77
Tensile Strength: Ultimate (UTS), MPa 140 to 290
770

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
290
Melting Completion (Liquidus), °C 1380 to 1390
1390
Melting Onset (Solidus), °C 1340 to 1350
1350
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 41 to 43
15
Thermal Expansion, µm/m-K 12 to 14
15

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
14
Density, g/cm3 7.5 to 7.6
7.7
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
3.0
Embodied Energy, MJ/kg 21 to 24
42
Embodied Water, L/kg 44 to 51
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 5.2 to 11
28
Strength to Weight: Bending, points 8.0 to 13
24
Thermal Diffusivity, mm2/s 11 to 12
3.9
Thermal Shock Resistance, points 4.2 to 8.6
19