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EN AC-71100 Aluminum vs. Austenitic Grey Cast Iron

EN AC-71100 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 (9, 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 EN AC-71100 aluminum and the bottom bar is austenitic grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
110 to 210
Elastic (Young's, Tensile) Modulus, GPa 72
180
Poisson's Ratio 0.32
0.29 to 0.3
Shear Modulus, GPa 27
69 to 72
Tensile Strength: Ultimate (UTS), MPa 260
150 to 230

Thermal Properties

Latent Heat of Fusion, J/g 490
280 to 350
Melting Completion (Liquidus), °C 580
1340 to 1400
Melting Onset (Solidus), °C 520
1290 to 1350
Specific Heat Capacity, J/kg-K 860
470 to 490
Thermal Expansion, µm/m-K 22
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
14 to 24
Density, g/cm3 2.9
7.7 to 8.1
Embodied Carbon, kg CO2/kg material 7.4
3.1 to 4.7
Embodied Energy, MJ/kg 140
43 to 65
Embodied Water, L/kg 1010
93 to 120

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
23 to 25
Strength to Weight: Axial, points 25
5.3 to 8.2
Strength to Weight: Bending, points 31
7.9 to 11
Thermal Shock Resistance, points 12
4.5 to 6.5