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713.0 Aluminum vs. Automotive Grey Cast Iron

713.0 aluminum belongs to the aluminum alloys classification, while automotive grey cast iron belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 713.0 aluminum and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 74 to 75
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 71
180
Elongation at Break, % 3.9 to 4.3
9.6 to 14
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
69 to 70
Tensile Strength: Ultimate (UTS), MPa 240 to 260
140 to 290
Tensile Strength: Yield (Proof), MPa 170
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 370
260 to 280
Melting Completion (Liquidus), °C 630
1380 to 1390
Melting Onset (Solidus), °C 610
1340 to 1350
Specific Heat Capacity, J/kg-K 860
490
Thermal Conductivity, W/m-K 150
41 to 43
Thermal Expansion, µm/m-K 24
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9 to 3.0
Density, g/cm3 3.1
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 7.8
1.5 to 1.7
Embodied Energy, MJ/kg 150
21 to 24
Embodied Water, L/kg 1110
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.7 to 9.9
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 220
25 to 110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 22 to 23
5.2 to 11
Strength to Weight: Bending, points 28 to 29
8.0 to 13
Thermal Diffusivity, mm2/s 57
11 to 12
Thermal Shock Resistance, points 10 to 11
4.2 to 8.6