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3203 Aluminum vs. EN 1.0070 Steel

3203 aluminum belongs to the aluminum alloys classification, while EN 1.0070 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 EN 1.0070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 4.5 to 29
9.1
Fatigue Strength, MPa 46 to 92
210
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 72 to 120
440
Tensile Strength: Ultimate (UTS), MPa 110 to 200
740
Tensile Strength: Yield (Proof), MPa 39 to 190
350

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 620
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 170
53
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 140
7.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
1.7
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1180
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
56
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 11 to 20
26
Strength to Weight: Bending, points 19 to 28
23
Thermal Diffusivity, mm2/s 70
14
Thermal Shock Resistance, points 4.9 to 8.8
23

Alloy Composition

Aluminum (Al), % 96.9 to 99
0
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.7
99.876 to 100
Manganese (Mn), % 1.0 to 1.5
0
Nitrogen (N), % 0
0 to 0.014
Phosphorus (P), % 0
0 to 0.055
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0
0 to 0.055
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0