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7010 Aluminum vs. S45503 Stainless Steel

7010 aluminum belongs to the aluminum alloys classification, while S45503 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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 S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.9 to 6.8
4.6 to 6.8
Fatigue Strength, MPa 160 to 190
710 to 800
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 300 to 340
940 to 1070
Tensile Strength: Ultimate (UTS), MPa 520 to 590
1610 to 1850
Tensile Strength: Yield (Proof), MPa 410 to 540
1430 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 380
270
Maximum Temperature: Mechanical, °C 200
760
Melting Completion (Liquidus), °C 630
1440
Melting Onset (Solidus), °C 480
1400
Specific Heat Capacity, J/kg-K 860
470
Thermal Expansion, µm/m-K 24
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.3
3.4
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1120
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
82 to 110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 47 to 54
57 to 65
Strength to Weight: Bending, points 47 to 52
39 to 43
Thermal Shock Resistance, points 22 to 26
56 to 64

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0 to 0.050
11 to 12.5
Copper (Cu), % 1.5 to 2.0
1.5 to 2.5
Iron (Fe), % 0 to 0.15
72.4 to 78.9
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.050
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.12
0 to 0.2
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.060
1.0 to 1.4
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0
Residuals, % 0 to 0.15
0