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7010 Aluminum vs. EN 1.4301 Stainless Steel

7010 aluminum belongs to the aluminum alloys classification, while EN 1.4301 stainless steel belongs to the iron alloys. There are 30 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 EN 1.4301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.9 to 6.8
14 to 46
Fatigue Strength, MPa 160 to 190
200 to 330
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 300 to 340
430 to 550
Tensile Strength: Ultimate (UTS), MPa 520 to 590
610 to 900
Tensile Strength: Yield (Proof), MPa 410 to 540
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 380
290
Maximum Temperature: Mechanical, °C 200
940
Melting Completion (Liquidus), °C 630
1430
Melting Onset (Solidus), °C 480
1380
Specific Heat Capacity, J/kg-K 860
480
Thermal Conductivity, W/m-K 150
15
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.0
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1120
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
110 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
120 to 820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 47 to 54
22 to 32
Strength to Weight: Bending, points 47 to 52
20 to 27
Thermal Diffusivity, mm2/s 58
4.0
Thermal Shock Resistance, points 22 to 26
14 to 20

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.050
17.5 to 19.5
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 0 to 0.15
66.8 to 74.5
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Nickel (Ni), % 0 to 0.050
8.0 to 10.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.12
0 to 1.0
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

Comparable Variants