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EN AC-46400 Aluminum vs. EN 1.4837 Stainless Steel

EN AC-46400 aluminum belongs to the aluminum alloys classification, while EN 1.4837 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 EN AC-46400 aluminum and the bottom bar is EN 1.4837 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77 to 120
150
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.1 to 1.7
6.8
Fatigue Strength, MPa 75 to 85
120
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 170 to 310
500
Tensile Strength: Yield (Proof), MPa 110 to 270
250

Thermal Properties

Latent Heat of Fusion, J/g 520
320
Maximum Temperature: Mechanical, °C 170
1050
Melting Completion (Liquidus), °C 610
1390
Melting Onset (Solidus), °C 570
1350
Specific Heat Capacity, J/kg-K 890
490
Thermal Conductivity, W/m-K 130
14
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
20
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 7.8
3.7
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1070
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7 to 4.9
29
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 500
160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 18 to 32
18
Strength to Weight: Bending, points 26 to 38
18
Thermal Diffusivity, mm2/s 55
3.7
Thermal Shock Resistance, points 7.8 to 14
11

Alloy Composition

Aluminum (Al), % 85.4 to 90.5
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
24 to 27
Copper (Cu), % 0.8 to 1.3
0
Iron (Fe), % 0 to 0.8
53.4 to 63.7
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0.25 to 0.65
0
Manganese (Mn), % 0.15 to 0.55
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.2
11 to 14
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 8.3 to 9.7
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.8
0
Residuals, % 0 to 0.25
0