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5050 Aluminum vs. Austenitic Grey Cast Iron

5050 aluminum belongs to the aluminum alloys classification, while austenitic grey cast iron belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, 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 5050 aluminum and the bottom bar is austenitic grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 36 to 68
110 to 210
Elastic (Young's, Tensile) Modulus, GPa 68
180
Poisson's Ratio 0.33
0.29 to 0.3
Shear Modulus, GPa 26
69 to 72
Tensile Strength: Ultimate (UTS), MPa 140 to 250
150 to 230

Thermal Properties

Latent Heat of Fusion, J/g 400
280 to 350
Melting Completion (Liquidus), °C 650
1340 to 1400
Melting Onset (Solidus), °C 630
1290 to 1350
Specific Heat Capacity, J/kg-K 900
470 to 490
Thermal Expansion, µm/m-K 24
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
14 to 24
Density, g/cm3 2.7
7.7 to 8.1
Embodied Carbon, kg CO2/kg material 8.4
3.1 to 4.7
Embodied Energy, MJ/kg 150
43 to 65
Embodied Water, L/kg 1190
93 to 120

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
23 to 25
Strength to Weight: Axial, points 15 to 26
5.3 to 8.2
Strength to Weight: Bending, points 22 to 33
7.9 to 11
Thermal Shock Resistance, points 6.3 to 11
4.5 to 6.5