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5088 Aluminum vs. EN 1.4958 Stainless Steel

5088 aluminum belongs to the aluminum alloys classification, while EN 1.4958 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 1.4958 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 29
40
Fatigue Strength, MPa 180
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
77
Shear Strength, MPa 200
430
Tensile Strength: Ultimate (UTS), MPa 310
630
Tensile Strength: Yield (Proof), MPa 150
190

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 200
1090
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 540
1350
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 120
12
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 98
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
30
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 9.0
5.3
Embodied Energy, MJ/kg 150
75
Embodied Water, L/kg 1180
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
190
Resilience: Unit (Modulus of Resilience), kJ/m3 170
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 32
22
Strength to Weight: Bending, points 38
20
Thermal Diffusivity, mm2/s 51
3.2
Thermal Shock Resistance, points 14
15

Alloy Composition

Aluminum (Al), % 92.4 to 94.8
0.2 to 0.5
Carbon (C), % 0
0.030 to 0.080
Chromium (Cr), % 0 to 0.15
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 0.1 to 0.35
41.1 to 50.6
Magnesium (Mg), % 4.7 to 5.5
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.5
Nickel (Ni), % 0
30 to 32.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.2
0 to 0.7
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.2 to 0.5
Zinc (Zn), % 0.2 to 0.4
0
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0 to 0.15
0