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7010 Aluminum vs. ACI-ASTM CG3M Steel

7010 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CG3M 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 7010 aluminum and the bottom bar is ACI-ASTM CG3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.9 to 6.8
28
Fatigue Strength, MPa 160 to 190
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 520 to 590
580
Tensile Strength: Yield (Proof), MPa 410 to 540
270

Thermal Properties

Latent Heat of Fusion, J/g 380
300
Maximum Temperature: Mechanical, °C 200
1020
Melting Completion (Liquidus), °C 630
1450
Melting Onset (Solidus), °C 480
1400
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 150
15
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.3
4.1
Embodied Energy, MJ/kg 150
56
Embodied Water, L/kg 1120
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 47 to 54
20
Strength to Weight: Bending, points 47 to 52
20
Thermal Diffusivity, mm2/s 58
4.1
Thermal Shock Resistance, points 22 to 26
13

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.050
18 to 21
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 0 to 0.15
58.9 to 70
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.050
9.0 to 13
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.12
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0
Residuals, % 0 to 0.15
0