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3203 Aluminum vs. ACI-ASTM CE30 Steel

3203 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CE30 steel 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 3203 aluminum and the bottom bar is ACI-ASTM CE30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 4.5 to 29
11
Fatigue Strength, MPa 46 to 92
170
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 110 to 200
630
Tensile Strength: Yield (Proof), MPa 39 to 190
310

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 650
1410
Melting Onset (Solidus), °C 620
1360
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 170
14
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
19
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.1
3.4
Embodied Energy, MJ/kg 150
49
Embodied Water, L/kg 1180
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
59
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
240
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 11 to 20
23
Strength to Weight: Bending, points 19 to 28
21
Thermal Diffusivity, mm2/s 70
3.6
Thermal Shock Resistance, points 4.9 to 8.8
13

Alloy Composition

Aluminum (Al), % 96.9 to 99
0
Carbon (C), % 0
0 to 0.3
Chromium (Cr), % 0
26 to 30
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.7
55.1 to 66
Manganese (Mn), % 1.0 to 1.5
0 to 1.5
Nickel (Ni), % 0
8.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0