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EN 1.4301 Stainless Steel vs. 520.0 Aluminum

EN 1.4301 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 (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 1.4301 stainless steel and the bottom bar is 520.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
75
Elastic (Young's, Tensile) Modulus, GPa 200
66
Elongation at Break, % 14 to 46
14
Fatigue Strength, MPa 200 to 330
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Shear Strength, MPa 430 to 550
230
Tensile Strength: Ultimate (UTS), MPa 610 to 900
330
Tensile Strength: Yield (Proof), MPa 220 to 570
170

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1380
480
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 15
87
Thermal Expansion, µm/m-K 16
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
21
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
72

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 3.0
9.8
Embodied Energy, MJ/kg 43
160
Embodied Water, L/kg 140
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 220
39
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 820
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 22 to 32
35
Strength to Weight: Bending, points 20 to 27
41
Thermal Diffusivity, mm2/s 4.0
37
Thermal Shock Resistance, points 14 to 20
14

Alloy Composition

Aluminum (Al), % 0
87.9 to 90.5
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 66.8 to 74.5
0 to 0.3
Magnesium (Mg), % 0
9.5 to 10.6
Manganese (Mn), % 0 to 2.0
0 to 0.15
Nickel (Ni), % 8.0 to 10.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15