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EN 1.3975 Stainless Steel vs. 7010 Aluminum

EN 1.3975 stainless steel belongs to the iron alloys classification, while 7010 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 EN 1.3975 stainless steel and the bottom bar is 7010 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 27
3.9 to 6.8
Fatigue Strength, MPa 230
160 to 190
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
26
Tensile Strength: Ultimate (UTS), MPa 660
520 to 590
Tensile Strength: Yield (Proof), MPa 320
410 to 540

Thermal Properties

Latent Heat of Fusion, J/g 340
380
Maximum Temperature: Mechanical, °C 910
200
Melting Completion (Liquidus), °C 1360
630
Melting Onset (Solidus), °C 1320
480
Specific Heat Capacity, J/kg-K 500
860
Thermal Expansion, µm/m-K 16
24

Otherwise Unclassified Properties

Base Metal Price, % relative 15
10
Density, g/cm3 7.5
3.0
Embodied Carbon, kg CO2/kg material 3.3
8.3
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 150
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
22 to 33
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1230 to 2130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
45
Strength to Weight: Axial, points 24
47 to 54
Strength to Weight: Bending, points 22
47 to 52
Thermal Shock Resistance, points 15
22 to 26

Alloy Composition

Aluminum (Al), % 0
87.9 to 90.6
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 16 to 18
0 to 0.050
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 58.2 to 65.4
0 to 0.15
Magnesium (Mg), % 0
2.1 to 2.6
Manganese (Mn), % 7.0 to 9.0
0 to 0.1
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 8.0 to 9.0
0 to 0.050
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 3.5 to 4.5
0 to 0.12
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 0
5.7 to 6.7
Zirconium (Zr), % 0
0.1 to 0.16
Residuals, % 0
0 to 0.15