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4007 Aluminum vs. Grey Cast Iron

4007 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 4007 aluminum and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 32 to 44
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 71
180
Elongation at Break, % 5.1 to 23
9.6
Fatigue Strength, MPa 46 to 88
69 to 170
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
69
Shear Strength, MPa 80 to 90
180 to 610
Tensile Strength: Ultimate (UTS), MPa 130 to 160
160 to 450
Tensile Strength: Yield (Proof), MPa 50 to 120
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Melting Completion (Liquidus), °C 650
1380
Melting Onset (Solidus), °C 590
1180
Specific Heat Capacity, J/kg-K 890
490
Thermal Conductivity, W/m-K 170
46
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.8
7.5
Embodied Carbon, kg CO2/kg material 8.1
1.5
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1160
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.4 to 23
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 110
27 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 12 to 15
5.8 to 17
Strength to Weight: Bending, points 20 to 23
8.7 to 17
Thermal Diffusivity, mm2/s 67
13
Thermal Shock Resistance, points 5.5 to 6.7
6.0 to 17

Alloy Composition

Aluminum (Al), % 94.1 to 97.6
0
Carbon (C), % 0
3.1 to 3.4
Chromium (Cr), % 0.050 to 0.25
0
Cobalt (Co), % 0 to 0.050
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0.4 to 1.0
92.1 to 93.9
Magnesium (Mg), % 0 to 0.2
0
Manganese (Mn), % 0.8 to 1.5
0.5 to 0.7
Nickel (Ni), % 0.15 to 0.7
0
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 1.0 to 1.7
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0