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5070 Aluminum vs. ACI-ASTM CN3MN Steel

5070 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CN3MN 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 5070 aluminum and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
210
Elongation at Break, % 20
39
Fatigue Strength, MPa 150
250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 300
620
Tensile Strength: Yield (Proof), MPa 140
300

Thermal Properties

Latent Heat of Fusion, J/g 390
310
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 900
460
Thermal Conductivity, W/m-K 130
13
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
33
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.8
6.2
Embodied Energy, MJ/kg 150
84
Embodied Water, L/kg 1170
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
200
Resilience: Unit (Modulus of Resilience), kJ/m3 150
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 31
21
Strength to Weight: Bending, points 37
20
Thermal Diffusivity, mm2/s 53
3.4
Thermal Shock Resistance, points 14
14

Alloy Composition


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Aluminum (Al), % 92.4 to 95.7
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.3
20 to 22
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 0 to 0.4
41.4 to 50.3
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.4 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
23.5 to 25.5
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0.4 to 0.8
0
Residuals, % 0 to 0.15
0