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A384.0 Aluminum vs. ASTM A514 Steel

A384.0 aluminum belongs to the aluminum alloys classification, while ASTM A514 steel belongs to the iron 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 A384.0 aluminum and the bottom bar is ASTM A514 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 2.5
18 to 21
Fatigue Strength, MPa 140
470 to 540
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Shear Strength, MPa 200
490 to 520
Tensile Strength: Ultimate (UTS), MPa 330
790 to 830
Tensile Strength: Yield (Proof), MPa 170
690 to 770

Thermal Properties

Latent Heat of Fusion, J/g 550
250 to 260
Maximum Temperature: Mechanical, °C 170
400 to 440
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 510
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 96
37 to 51
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
7.2 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 73
8.3 to 8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.3 to 3.8
Density, g/cm3 2.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 7.5
1.6 to 1.8
Embodied Energy, MJ/kg 140
21 to 25
Embodied Water, L/kg 1010
48 to 57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
140 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1280 to 1590
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 32
28 to 29
Strength to Weight: Bending, points 38
24 to 25
Thermal Diffusivity, mm2/s 39
10 to 14
Thermal Shock Resistance, points 15
23 to 24