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515.0 Aluminum vs. Grey Cast Iron

515.0 aluminum belongs to the aluminum alloys classification, while grey cast iron belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 515.0 aluminum and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
180
Elongation at Break, % 10
9.6
Fatigue Strength, MPa 130
69 to 170
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
69
Shear Strength, MPa 190
180 to 610
Tensile Strength: Ultimate (UTS), MPa 280
160 to 450

Thermal Properties

Latent Heat of Fusion, J/g 470
280
Melting Completion (Liquidus), °C 620
1380
Melting Onset (Solidus), °C 620
1180
Specific Heat Capacity, J/kg-K 900
490
Thermal Expansion, µm/m-K 23
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.6
7.5
Embodied Carbon, kg CO2/kg material 8.4
1.5
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1120
44

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 30
5.8 to 17
Strength to Weight: Bending, points 36
8.7 to 17
Thermal Shock Resistance, points 13
6.0 to 17

Alloy Composition


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Aluminum (Al), % 93.6 to 96.6
0
Carbon (C), % 0
3.1 to 3.4
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 1.3
92.1 to 93.9
Magnesium (Mg), % 2.5 to 4.0
0
Manganese (Mn), % 0.4 to 0.6
0.5 to 0.7
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 0.5 to 10
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0