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5005A Aluminum vs. ASTM A204 Steel

5005A aluminum belongs to the aluminum alloys classification, while ASTM A204 steel belongs to the iron alloys. 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 5005A aluminum and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 29 to 64
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 21
18 to 22
Fatigue Strength, MPa 38 to 82
200 to 220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 71 to 130
330 to 360
Tensile Strength: Ultimate (UTS), MPa 110 to 230
520 to 590
Tensile Strength: Yield (Proof), MPa 43 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 660
1470
Melting Onset (Solidus), °C 630
1420 to 1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 200
52
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 52
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 170
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1190
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.0 to 19
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 14 to 310
220 to 290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12 to 24
18 to 21
Strength to Weight: Bending, points 19 to 31
18 to 20
Thermal Diffusivity, mm2/s 82
14
Thermal Shock Resistance, points 5.0 to 10
15 to 17