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C355.0 Aluminum vs. Grey Cast Iron

C355.0 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 (4, 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 C355.0 aluminum and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86 to 90
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 70
180
Elongation at Break, % 2.7 to 3.8
9.6
Fatigue Strength, MPa 76 to 84
69 to 170
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
69
Tensile Strength: Ultimate (UTS), MPa 290 to 310
160 to 450
Tensile Strength: Yield (Proof), MPa 200 to 230
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 470
280
Melting Completion (Liquidus), °C 620
1380
Melting Onset (Solidus), °C 570
1180
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 150
46
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
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 8.0
1.5
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1120
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.5 to 9.8
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 380
27 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 30 to 32
5.8 to 17
Strength to Weight: Bending, points 36 to 37
8.7 to 17
Thermal Diffusivity, mm2/s 60
13
Thermal Shock Resistance, points 13 to 14
6.0 to 17

Alloy Composition

Aluminum (Al), % 91.7 to 94.1
0
Carbon (C), % 0
3.1 to 3.4
Copper (Cu), % 1.0 to 1.5
0
Iron (Fe), % 0 to 0.2
92.1 to 93.9
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
0.5 to 0.7
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 4.5 to 5.5
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0