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5449 Aluminum vs. EN 1.4835 Stainless Steel

5449 aluminum belongs to the aluminum alloys classification, while EN 1.4835 stainless steel belongs to the iron 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 5449 aluminum and the bottom bar is EN 1.4835 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 4.0 to 17
43
Fatigue Strength, MPa 78 to 120
310
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 130 to 190
520
Tensile Strength: Ultimate (UTS), MPa 210 to 330
750
Tensile Strength: Yield (Proof), MPa 91 to 260
350

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Maximum Temperature: Mechanical, °C 190
1150
Melting Completion (Liquidus), °C 650
1400
Melting Onset (Solidus), °C 590
1360
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.5
3.3
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 1180
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
270
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 22 to 33
27
Strength to Weight: Bending, points 29 to 39
24
Thermal Diffusivity, mm2/s 56
4.0
Thermal Shock Resistance, points 9.4 to 15
16

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
0
Carbon (C), % 0
0.050 to 0.12
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0 to 0.3
20 to 22
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
62 to 68.4
Magnesium (Mg), % 1.6 to 2.6
0
Manganese (Mn), % 0.6 to 1.1
0 to 1.0
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.4
1.4 to 2.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0