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A206.0 Aluminum vs. Automotive Grey Cast Iron

A206.0 aluminum belongs to the aluminum alloys classification, while automotive grey cast iron belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 A206.0 aluminum and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 70
180
Elongation at Break, % 4.2 to 10
9.6 to 14
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
69 to 70
Tensile Strength: Ultimate (UTS), MPa 390 to 440
140 to 290
Tensile Strength: Yield (Proof), MPa 250 to 380
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 390
260 to 280
Melting Completion (Liquidus), °C 670
1380 to 1390
Melting Onset (Solidus), °C 550
1340 to 1350
Specific Heat Capacity, J/kg-K 880
490
Thermal Conductivity, W/m-K 130
41 to 43
Thermal Expansion, µm/m-K 23
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 90
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.9 to 3.0
Density, g/cm3 3.0
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 8.0
1.5 to 1.7
Embodied Energy, MJ/kg 150
21 to 24
Embodied Water, L/kg 1150
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 37
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1000
25 to 110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 36 to 41
5.2 to 11
Strength to Weight: Bending, points 39 to 43
8.0 to 13
Thermal Diffusivity, mm2/s 48
11 to 12
Thermal Shock Resistance, points 17 to 19
4.2 to 8.6