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3303 Aluminum vs. ASTM A414 Steel

3303 aluminum belongs to the aluminum alloys classification, while ASTM A414 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 3303 aluminum and the bottom bar is ASTM A414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 23
15 to 26
Fatigue Strength, MPa 43
140 to 260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 69
230 to 370
Tensile Strength: Ultimate (UTS), MPa 110
360 to 590
Tensile Strength: Yield (Proof), MPa 39
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 620
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 170
49 to 50
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
7.2 to 7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.3 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.2
Density, g/cm3 2.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 8.1
1.5 to 1.6
Embodied Energy, MJ/kg 150
20 to 22
Embodied Water, L/kg 1180
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
69 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 11
100 to 330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 11
13 to 21
Strength to Weight: Bending, points 18
14 to 20
Thermal Diffusivity, mm2/s 67
13
Thermal Shock Resistance, points 4.8
11 to 17