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EN AC-51500 Aluminum vs. Grey Cast Iron

EN AC-51500 aluminum belongs to the aluminum alloys classification, while grey cast iron belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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-51500 aluminum and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 68
180
Elongation at Break, % 5.6
9.6
Fatigue Strength, MPa 120
69 to 170
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
69
Tensile Strength: Ultimate (UTS), MPa 280
160 to 450
Tensile Strength: Yield (Proof), MPa 160
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 430
280
Melting Completion (Liquidus), °C 630
1380
Melting Onset (Solidus), °C 590
1180
Specific Heat Capacity, J/kg-K 910
490
Thermal Conductivity, W/m-K 120
46
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 88
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.6
7.5
Embodied Carbon, kg CO2/kg material 9.0
1.5
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1150
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 190
27 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 29
5.8 to 17
Strength to Weight: Bending, points 36
8.7 to 17
Thermal Diffusivity, mm2/s 49
13
Thermal Shock Resistance, points 13
6.0 to 17

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
0
Carbon (C), % 0
3.1 to 3.4
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.25
92.1 to 93.9
Magnesium (Mg), % 4.7 to 6.0
0
Manganese (Mn), % 0.4 to 0.8
0.5 to 0.7
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 1.8 to 2.6
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.15
0