MakeItFrom.com
Menu (ESC)

Automotive Malleable Cast Iron vs. EN AC-51200 Aluminum

Automotive malleable cast iron belongs to the iron alloys classification, while EN AC-51200 aluminum belongs to the aluminum 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 automotive malleable cast iron and the bottom bar is EN AC-51200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 290
80
Elastic (Young's, Tensile) Modulus, GPa 180
67
Elongation at Break, % 1.0 to 10
1.1
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 70
25
Tensile Strength: Ultimate (UTS), MPa 350 to 720
220
Tensile Strength: Yield (Proof), MPa 220 to 590
150

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1370
570
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 41
92
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
22
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
74

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
9.5
Density, g/cm3 7.6
2.6
Embodied Carbon, kg CO2/kg material 1.5
9.6
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 45
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 13 to 26
24
Strength to Weight: Bending, points 14 to 24
31
Thermal Diffusivity, mm2/s 11
39
Thermal Shock Resistance, points 9.9 to 21
10

Alloy Composition

Aluminum (Al), % 0
84.5 to 92
Carbon (C), % 2.2 to 2.9
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 93.6 to 96.7
0 to 1.0
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
8.0 to 10.5
Manganese (Mn), % 0.15 to 1.3
0 to 0.55
Nickel (Ni), % 0
0 to 0.1
Phosphorus (P), % 0.020 to 0.15
0
Silicon (Si), % 0.9 to 1.9
0 to 2.5
Sulfur (S), % 0.020 to 0.2
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15