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390.0 Aluminum vs. ASTM A204 Steel

390.0 aluminum belongs to the aluminum alloys classification, while ASTM A204 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 390.0 aluminum and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 75
190
Elongation at Break, % 1.0
18 to 22
Fatigue Strength, MPa 76 to 110
200 to 220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Tensile Strength: Ultimate (UTS), MPa 280 to 300
520 to 590
Tensile Strength: Yield (Proof), MPa 240 to 270
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 640
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 560
1420 to 1430
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 130
52
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.4
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 7.3
1.5
Embodied Energy, MJ/kg 130
20
Embodied Water, L/kg 950
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
220 to 290
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 28 to 30
18 to 21
Strength to Weight: Bending, points 35 to 36
18 to 20
Thermal Diffusivity, mm2/s 56
14
Thermal Shock Resistance, points 14 to 15
15 to 17