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A380.0 Aluminum vs. SAE-AISI D2 Steel

A380.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI D2 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 A380.0 aluminum and the bottom bar is SAE-AISI D2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 3.3
5.0 to 16
Fatigue Strength, MPa 140
310 to 860
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
75
Shear Strength, MPa 190
460 to 1160
Tensile Strength: Ultimate (UTS), MPa 290
760 to 2000
Tensile Strength: Yield (Proof), MPa 160
470 to 1510

Thermal Properties

Latent Heat of Fusion, J/g 510
270
Melting Completion (Liquidus), °C 590
1440
Melting Onset (Solidus), °C 550
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 96
31
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
4.3
Electrical Conductivity: Equal Weight (Specific), % IACS 78
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
8.0
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.5
3.4
Embodied Energy, MJ/kg 140
50
Embodied Water, L/kg 1040
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
92 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 180
570 to 5940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 28
27 to 72
Strength to Weight: Bending, points 34
24 to 46
Thermal Diffusivity, mm2/s 38
8.3
Thermal Shock Resistance, points 13
25 to 67

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
1.4 to 1.6
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 3.0 to 4.0
0 to 0.25
Iron (Fe), % 0 to 1.3
81.3 to 86.9
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0 to 0.5
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.5 to 9.5
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Vanadium (V), % 0
0 to 1.1
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0