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ASTM A588 Steel vs. A380.0 Aluminum

ASTM A588 steel belongs to the iron alloys classification, while A380.0 aluminum belongs to the aluminum 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 ASTM A588 steel and the bottom bar is A380.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
80
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 22
3.3
Fatigue Strength, MPa 270
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 350
190
Tensile Strength: Ultimate (UTS), MPa 550
290
Tensile Strength: Yield (Proof), MPa 390
160

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
510
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1410 to 1420
550
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 43 to 44
96
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
78

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
11
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
7.5
Embodied Energy, MJ/kg 20 to 22
140
Embodied Water, L/kg 50 to 51
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
8.3
Resilience: Unit (Modulus of Resilience), kJ/m3 400
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
48
Strength to Weight: Axial, points 20
28
Strength to Weight: Bending, points 19
34
Thermal Diffusivity, mm2/s 12
38
Thermal Shock Resistance, points 16
13