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7116 Aluminum vs. EN 1.4511 Stainless Steel

7116 aluminum belongs to the aluminum alloys classification, while EN 1.4511 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 7116 aluminum and the bottom bar is EN 1.4511 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 7.8
25
Fatigue Strength, MPa 160
180
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 220
330
Tensile Strength: Ultimate (UTS), MPa 370
510
Tensile Strength: Yield (Proof), MPa 330
260

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 520
1400
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 150
25
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 8.2
2.5
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1150
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
110
Resilience: Unit (Modulus of Resilience), kJ/m3 790
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 35
18
Strength to Weight: Bending, points 39
18
Thermal Diffusivity, mm2/s 58
6.7
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 91.5 to 94.5
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0.5 to 1.1
0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
78.9 to 84
Magnesium (Mg), % 0.8 to 1.4
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0
Residuals, % 0 to 0.15
0