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7010 Aluminum vs. EN 1.4724 Stainless Steel

7010 aluminum belongs to the aluminum alloys classification, while EN 1.4724 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 EN 1.4724 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.9 to 6.8
16
Fatigue Strength, MPa 160 to 190
170
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 300 to 340
340
Tensile Strength: Ultimate (UTS), MPa 520 to 590
550
Tensile Strength: Yield (Proof), MPa 410 to 540
280

Thermal Properties

Latent Heat of Fusion, J/g 380
290
Maximum Temperature: Mechanical, °C 200
850
Melting Completion (Liquidus), °C 630
1430
Melting Onset (Solidus), °C 480
1390
Specific Heat Capacity, J/kg-K 860
490
Thermal Conductivity, W/m-K 150
21
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.0
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.0
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 1120
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
73
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
210
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
19
Thermal Diffusivity, mm2/s 58
5.6
Thermal Shock Resistance, points 22 to 26
19

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0.7 to 1.2
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0 to 0.050
12 to 14
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 0 to 0.15
82.2 to 86.6
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Nickel (Ni), % 0 to 0.050
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.12
0.7 to 1.4
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