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5088 Aluminum vs. EN 1.4470 Stainless Steel

5088 aluminum belongs to the aluminum alloys classification, while EN 1.4470 stainless steel belongs to the iron 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 5088 aluminum and the bottom bar is EN 1.4470 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 29
23
Fatigue Strength, MPa 180
320
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 25
80
Tensile Strength: Ultimate (UTS), MPa 310
680
Tensile Strength: Yield (Proof), MPa 150
480

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 200
1060
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 120
18
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 98
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 9.0
3.6
Embodied Energy, MJ/kg 150
49
Embodied Water, L/kg 1180
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
140
Resilience: Unit (Modulus of Resilience), kJ/m3 170
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 32
24
Strength to Weight: Bending, points 38
22
Thermal Diffusivity, mm2/s 51
4.8
Thermal Shock Resistance, points 14
18

Alloy Composition

Aluminum (Al), % 92.4 to 94.8
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.15
21 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0.1 to 0.35
63.7 to 71.9
Magnesium (Mg), % 4.7 to 5.5
0
Manganese (Mn), % 0.2 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
4.5 to 6.5
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0.2 to 0.4
0
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0 to 0.15
0