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ASTM A588 Steel vs. 328.0 Aluminum

ASTM A588 steel belongs to the iron alloys classification, while 328.0 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 328.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
60 to 82
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 22
1.6 to 2.1
Fatigue Strength, MPa 270
55 to 80
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 550
200 to 270
Tensile Strength: Yield (Proof), MPa 390
120 to 170

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
510
Maximum Temperature: Mechanical, °C 410
180
Melting Completion (Liquidus), °C 1460
620
Melting Onset (Solidus), °C 1410 to 1420
560
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 43 to 44
120
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
99

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
10
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
7.8
Embodied Energy, MJ/kg 20 to 22
140
Embodied Water, L/kg 50 to 51
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.8 to 5.0
Resilience: Unit (Modulus of Resilience), kJ/m3 400
92 to 200
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 20
21 to 28
Strength to Weight: Bending, points 19
28 to 34
Thermal Diffusivity, mm2/s 12
50
Thermal Shock Resistance, points 16
9.2 to 12