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ASTM A588 Steel vs. 333.0 Aluminum

ASTM A588 steel belongs to the iron alloys classification, while 333.0 aluminum belongs to the aluminum 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 ASTM A588 steel and the bottom bar is 333.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
90 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 22
1.0 to 2.0
Fatigue Strength, MPa 270
83 to 100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
28
Shear Strength, MPa 350
190 to 230
Tensile Strength: Ultimate (UTS), MPa 550
230 to 280
Tensile Strength: Yield (Proof), MPa 390
130 to 210

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
520
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1410 to 1420
530
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 43 to 44
100 to 140
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
26 to 35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
83 to 110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
10
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
7.6
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
2.1 to 4.6
Resilience: Unit (Modulus of Resilience), kJ/m3 400
120 to 290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 20
22 to 27
Strength to Weight: Bending, points 19
29 to 34
Thermal Diffusivity, mm2/s 12
42 to 57
Thermal Shock Resistance, points 16
11 to 13