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EN 1.4517 Stainless Steel vs. 5182 Aluminum

EN 1.4517 stainless steel belongs to the iron alloys classification, while 5182 aluminum belongs to the aluminum alloys. There are 29 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 EN 1.4517 stainless steel and the bottom bar is 5182 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 25
1.1 to 12
Fatigue Strength, MPa 380
100 to 130
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
25
Tensile Strength: Ultimate (UTS), MPa 730
280 to 420
Tensile Strength: Yield (Proof), MPa 550
130 to 360

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 17
130
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
94

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.8
8.9
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
2.6 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 740
120 to 950
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 26
29 to 44
Strength to Weight: Bending, points 23
36 to 47
Thermal Diffusivity, mm2/s 4.6
53
Thermal Shock Resistance, points 20
12 to 19

Alloy Composition

Aluminum (Al), % 0
93.2 to 95.8
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 24.5 to 26.5
0 to 0.1
Copper (Cu), % 2.8 to 3.5
0 to 0.15
Iron (Fe), % 56.7 to 65.1
0 to 0.35
Magnesium (Mg), % 0
4.0 to 5.0
Manganese (Mn), % 0 to 1.5
0.2 to 0.5
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15