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ASTM A588 Steel vs. 444.0 Aluminum

ASTM A588 steel belongs to the iron alloys classification, while 444.0 aluminum belongs to the aluminum 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 ASTM A588 steel and the bottom bar is 444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
50
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 22
25
Fatigue Strength, MPa 270
51
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 550
190
Tensile Strength: Yield (Proof), MPa 390
83

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
500
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
610
Melting Onset (Solidus), °C 1410 to 1420
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 43 to 44
160
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
7.9
Embodied Energy, MJ/kg 20 to 22
150
Embodied Water, L/kg 50 to 51
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
39
Resilience: Unit (Modulus of Resilience), kJ/m3 400
49
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
28
Thermal Diffusivity, mm2/s 12
67
Thermal Shock Resistance, points 16
8.8