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A380.0 Aluminum vs. SAE-AISI 4028 Steel

A380.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 4028 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 A380.0 aluminum and the bottom bar is SAE-AISI 4028 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
150 to 190
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 3.3
14 to 23
Fatigue Strength, MPa 140
180 to 330
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 190
310 to 380
Tensile Strength: Ultimate (UTS), MPa 290
490 to 630
Tensile Strength: Yield (Proof), MPa 160
260 to 520

Thermal Properties

Latent Heat of Fusion, J/g 510
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 96
49
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 78
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.1
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
1.5
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1040
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
81 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 180
180 to 720
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 28
17 to 22
Strength to Weight: Bending, points 34
18 to 21
Thermal Diffusivity, mm2/s 38
13
Thermal Shock Resistance, points 13
16 to 20

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0.25 to 0.3
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.3
98.1 to 98.7
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 7.5 to 9.5
0.15 to 0.35
Sulfur (S), % 0
0.035 to 0.050
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0