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EN 1.4606 Stainless Steel vs. 7116 Aluminum

EN 1.4606 stainless steel belongs to the iron alloys classification, while 7116 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.4606 stainless steel and the bottom bar is 7116 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 23 to 39
7.8
Fatigue Strength, MPa 240 to 420
160
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
26
Shear Strength, MPa 410 to 640
220
Tensile Strength: Ultimate (UTS), MPa 600 to 1020
370
Tensile Strength: Yield (Proof), MPa 280 to 630
330

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 910
170
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1380
520
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 14
150
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
46
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 26
9.5
Density, g/cm3 7.9
2.9
Embodied Carbon, kg CO2/kg material 6.0
8.2
Embodied Energy, MJ/kg 87
150
Embodied Water, L/kg 170
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 200
28
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 1010
790
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 21 to 36
35
Strength to Weight: Bending, points 20 to 28
39
Thermal Diffusivity, mm2/s 3.7
58
Thermal Shock Resistance, points 21 to 35
16

Alloy Composition

Aluminum (Al), % 0 to 0.35
91.5 to 94.5
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 13 to 16
0
Copper (Cu), % 0
0.5 to 1.1
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 49.2 to 59
0 to 0.3
Magnesium (Mg), % 0
0.8 to 1.4
Manganese (Mn), % 1.0 to 2.0
0 to 0.050
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 1.0
0 to 0.15
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 1.9 to 2.3
0 to 0.050
Vanadium (V), % 0.1 to 0.5
0 to 0.050
Zinc (Zn), % 0
4.2 to 5.2
Residuals, % 0
0 to 0.15