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EN AC-44500 Aluminum vs. Automotive Grey Cast Iron

EN AC-44500 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 (2, 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 EN AC-44500 aluminum and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 72
180
Elongation at Break, % 1.1
9.6 to 14
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
69 to 70
Tensile Strength: Ultimate (UTS), MPa 270
140 to 290
Tensile Strength: Yield (Proof), MPa 160
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 570
260 to 280
Melting Completion (Liquidus), °C 590
1380 to 1390
Melting Onset (Solidus), °C 580
1340 to 1350
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 130
41 to 43
Thermal Expansion, µm/m-K 21
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9 to 3.0
Density, g/cm3 2.5
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 7.7
1.5 to 1.7
Embodied Energy, MJ/kg 140
21 to 24
Embodied Water, L/kg 1050
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 180
25 to 110
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
25
Strength to Weight: Axial, points 29
5.2 to 11
Strength to Weight: Bending, points 36
8.0 to 13
Thermal Diffusivity, mm2/s 57
11 to 12
Thermal Shock Resistance, points 13
4.2 to 8.6