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5070 Aluminum vs. SAE-AISI 1146 Steel

5070 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1146 steel belongs to the iron 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 5070 aluminum and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 20
13 to 17
Fatigue Strength, MPa 150
240 to 400
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Shear Strength, MPa 190
410 to 440
Tensile Strength: Ultimate (UTS), MPa 300
670 to 730
Tensile Strength: Yield (Proof), MPa 140
360 to 630

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 190
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
51
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.8
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1170
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 150
340 to 1050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 31
24 to 26
Strength to Weight: Bending, points 37
22 to 23
Thermal Diffusivity, mm2/s 53
14
Thermal Shock Resistance, points 14
20 to 22

Alloy Composition


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Aluminum (Al), % 92.4 to 95.7
0
Carbon (C), % 0
0.42 to 0.49
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.4
98.3 to 98.8
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.4 to 0.8
0.7 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0
Sulfur (S), % 0
0.080 to 0.13
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0.4 to 0.8
0
Residuals, % 0 to 0.15
0