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355.0 Aluminum vs. ASTM A588 Steel

355.0 aluminum belongs to the aluminum alloys classification, while ASTM A588 steel belongs to the iron 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 355.0 aluminum and the bottom bar is ASTM A588 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 72 to 83
170
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 1.5 to 2.6
22
Fatigue Strength, MPa 55 to 70
270
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 150 to 240
350
Tensile Strength: Ultimate (UTS), MPa 200 to 260
550
Tensile Strength: Yield (Proof), MPa 150 to 190
390

Thermal Properties

Latent Heat of Fusion, J/g 470
250 to 260
Maximum Temperature: Mechanical, °C 180
410
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 560
1410 to 1420
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 150 to 170
43 to 44
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38 to 43
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120 to 140
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3 to 2.5
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.5 to 1.6
Embodied Energy, MJ/kg 150
20 to 22
Embodied Water, L/kg 1120
50 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 5.9
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 250
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 20 to 27
20
Strength to Weight: Bending, points 28 to 33
19
Thermal Diffusivity, mm2/s 60 to 69
12
Thermal Shock Resistance, points 9.1 to 12
16