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EN 1.4988 Stainless Steel vs. 520.0 Aluminum

EN 1.4988 stainless steel belongs to the iron alloys classification, while 520.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4988 stainless steel and the bottom bar is 520.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
75
Elastic (Young's, Tensile) Modulus, GPa 200
66
Elongation at Break, % 34
14
Fatigue Strength, MPa 230
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Shear Strength, MPa 430
230
Tensile Strength: Ultimate (UTS), MPa 640
330
Tensile Strength: Yield (Proof), MPa 290
170

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 920
170
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1400
480
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 15
87
Thermal Expansion, µm/m-K 16
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
21
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
72

Otherwise Unclassified Properties

Base Metal Price, % relative 23
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 6.0
9.8
Embodied Energy, MJ/kg 89
160
Embodied Water, L/kg 150
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
39
Resilience: Unit (Modulus of Resilience), kJ/m3 210
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 23
35
Strength to Weight: Bending, points 21
41
Thermal Diffusivity, mm2/s 4.0
37
Thermal Shock Resistance, points 14
14

Alloy Composition

Aluminum (Al), % 0
87.9 to 90.5
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 15.5 to 17.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 69.5
0 to 0.3
Magnesium (Mg), % 0
9.5 to 10.6
Manganese (Mn), % 0 to 1.5
0 to 0.15
Molybdenum (Mo), % 1.1 to 1.5
0
Nickel (Ni), % 12.5 to 14.5
0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.3 to 0.6
0 to 0.25
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0.6 to 0.85
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15