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7010 Aluminum vs. SAE-AISI 52100 Steel

7010 aluminum belongs to the aluminum alloys classification, while SAE-AISI 52100 steel belongs to the iron alloys. There are 30 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 7010 aluminum and the bottom bar is SAE-AISI 52100 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.9 to 6.8
10 to 20
Fatigue Strength, MPa 160 to 190
250 to 340
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
72
Shear Strength, MPa 300 to 340
370 to 420
Tensile Strength: Ultimate (UTS), MPa 520 to 590
590 to 2010
Tensile Strength: Yield (Proof), MPa 410 to 540
360 to 560

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 200
430
Melting Completion (Liquidus), °C 630
1450
Melting Onset (Solidus), °C 480
1410
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 150
47
Thermal Expansion, µm/m-K 24
12 to 13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.4
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1120
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
54 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
350 to 840
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 47 to 54
21 to 72
Strength to Weight: Bending, points 47 to 52
20 to 45
Thermal Diffusivity, mm2/s 58
13
Thermal Shock Resistance, points 22 to 26
19 to 61

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Carbon (C), % 0
0.93 to 1.1
Chromium (Cr), % 0 to 0.050
1.4 to 1.6
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 0 to 0.15
96.5 to 97.3
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0.25 to 0.45
Nickel (Ni), % 0 to 0.050
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.12
0.15 to 0.35
Sulfur (S), % 0
0 to 0.015
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