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ASTM A588 Steel vs. 204.0 Aluminum

ASTM A588 steel belongs to the iron alloys classification, while 204.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 204.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
90 to 120
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 22
5.7 to 7.8
Fatigue Strength, MPa 270
63 to 77
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 550
230 to 340
Tensile Strength: Yield (Proof), MPa 390
180 to 220

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
390
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1410 to 1420
580
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 43 to 44
120
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
29 to 34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
87 to 100

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
8.0
Embodied Energy, MJ/kg 20 to 22
150
Embodied Water, L/kg 50 to 51
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 400
220 to 350
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 20
21 to 31
Strength to Weight: Bending, points 19
28 to 36
Thermal Diffusivity, mm2/s 12
46
Thermal Shock Resistance, points 16
12 to 18