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EN 1.4587 Stainless Steel vs. EN AC-43400 Aluminum

EN 1.4587 stainless steel belongs to the iron alloys classification, while EN AC-43400 aluminum belongs to the aluminum alloys. There are 30 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 1.4587 stainless steel and the bottom bar is EN AC-43400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
80
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 34
1.1
Fatigue Strength, MPa 200
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 540
270
Tensile Strength: Yield (Proof), MPa 250
160

Thermal Properties

Latent Heat of Fusion, J/g 310
540
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1420
600
Melting Onset (Solidus), °C 1370
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 17
140
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
110

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 8.1
2.6
Embodied Carbon, kg CO2/kg material 6.3
7.8
Embodied Energy, MJ/kg 87
150
Embodied Water, L/kg 230
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 150
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
54
Strength to Weight: Axial, points 18
29
Strength to Weight: Bending, points 18
36
Thermal Diffusivity, mm2/s 4.5
59
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 0
86 to 90.8
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 2.0 to 3.0
0 to 0.1
Iron (Fe), % 32.7 to 41.9
0 to 1.0
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0 to 2.0
0 to 0.55
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 28 to 30
0 to 0.15
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
9.0 to 11
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15