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5182 Aluminum vs. EN 1.4634 Stainless Steel

5182 aluminum belongs to the aluminum alloys classification, while EN 1.4634 stainless steel belongs to the iron 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 5182 aluminum and the bottom bar is EN 1.4634 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 1.1 to 12
21
Fatigue Strength, MPa 100 to 130
180
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
77
Shear Strength, MPa 170 to 240
340
Tensile Strength: Ultimate (UTS), MPa 280 to 420
540
Tensile Strength: Yield (Proof), MPa 130 to 360
280

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 180
900
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 590
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 94
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.9
2.9
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1180
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
93
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 29 to 44
20
Strength to Weight: Bending, points 36 to 47
19
Thermal Diffusivity, mm2/s 53
5.8
Thermal Shock Resistance, points 12 to 19
19

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
0.2 to 1.5
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
17.5 to 18.5
Copper (Cu), % 0 to 0.15
0 to 0.5
Iron (Fe), % 0 to 0.35
74.9 to 81.8
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.3 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.2
0.2 to 1.5
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0