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5252 Aluminum vs. Grey Cast Iron

5252 aluminum belongs to the aluminum alloys classification, while grey cast iron belongs to the iron alloys. There are 30 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 5252 aluminum and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68 to 75
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 68
180
Elongation at Break, % 4.5 to 11
9.6
Fatigue Strength, MPa 100 to 110
69 to 170
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
69
Shear Strength, MPa 140 to 160
180 to 610
Tensile Strength: Ultimate (UTS), MPa 230 to 290
160 to 450
Tensile Strength: Yield (Proof), MPa 170 to 240
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Melting Completion (Liquidus), °C 650
1380
Melting Onset (Solidus), °C 610
1180
Specific Heat Capacity, J/kg-K 910
490
Thermal Conductivity, W/m-K 140
46
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.7
7.5
Embodied Carbon, kg CO2/kg material 8.7
1.5
Embodied Energy, MJ/kg 160
21
Embodied Water, L/kg 1190
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 430
27 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 23 to 30
5.8 to 17
Strength to Weight: Bending, points 31 to 36
8.7 to 17
Thermal Diffusivity, mm2/s 57
13
Thermal Shock Resistance, points 10 to 13
6.0 to 17

Alloy Composition

Aluminum (Al), % 96.6 to 97.8
0
Carbon (C), % 0
3.1 to 3.4
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.1
92.1 to 93.9
Magnesium (Mg), % 2.2 to 2.8
0
Manganese (Mn), % 0 to 0.1
0.5 to 0.7
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 0 to 0.080
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0
Residuals, % 0 to 0.1
0