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5088 Aluminum vs. EN 1.4029 Stainless Steel

5088 aluminum belongs to the aluminum alloys classification, while EN 1.4029 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 5088 aluminum and the bottom bar is EN 1.4029 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 29
10 to 20
Fatigue Strength, MPa 180
270 to 400
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
76
Shear Strength, MPa 200
440 to 550
Tensile Strength: Ultimate (UTS), MPa 310
700 to 930
Tensile Strength: Yield (Proof), MPa 150
410 to 740

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 200
750
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 120
30
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 98
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 9.0
2.0
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 1180
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
89 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 170
440 to 1410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 32
25 to 33
Strength to Weight: Bending, points 38
23 to 27
Thermal Diffusivity, mm2/s 51
8.1
Thermal Shock Resistance, points 14
26 to 34

Alloy Composition

Aluminum (Al), % 92.4 to 94.8
0
Carbon (C), % 0
0.25 to 0.32
Chromium (Cr), % 0 to 0.15
12 to 13.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0.1 to 0.35
82.8 to 87.6
Magnesium (Mg), % 4.7 to 5.5
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0.15 to 0.25
Zinc (Zn), % 0.2 to 0.4
0
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0 to 0.15
0