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3003 Aluminum vs. ASTM A204 Steel

3003 aluminum belongs to the aluminum alloys classification, while ASTM A204 steel belongs to the iron alloys. There are 31 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 3003 aluminum and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 28 to 65
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 1.1 to 28
18 to 22
Fatigue Strength, MPa 39 to 90
200 to 220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 68 to 130
330 to 360
Tensile Strength: Ultimate (UTS), MPa 110 to 240
520 to 590
Tensile Strength: Yield (Proof), MPa 40 to 210
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
410
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 640
1420 to 1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 180
52
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.1
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1180
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.95 to 63
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 300
220 to 290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 11 to 24
18 to 21
Strength to Weight: Bending, points 18 to 30
18 to 20
Thermal Diffusivity, mm2/s 71
14
Thermal Shock Resistance, points 4.7 to 10
15 to 17