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5049 Aluminum vs. EN 1.4821 Stainless Steel

5049 aluminum belongs to the aluminum alloys classification, while EN 1.4821 stainless steel belongs to the iron alloys. There are 31 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 5049 aluminum and the bottom bar is EN 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 52 to 88
200
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 2.0 to 18
18
Fatigue Strength, MPa 79 to 130
280
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
79
Shear Strength, MPa 130 to 190
450
Tensile Strength: Ultimate (UTS), MPa 210 to 330
730
Tensile Strength: Yield (Proof), MPa 91 to 280
450

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 650
1410
Melting Onset (Solidus), °C 620
1370
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 140
17
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
15
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.5
2.9
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1180
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 31
110
Resilience: Unit (Modulus of Resilience), kJ/m3 59 to 570
500
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
26
Strength to Weight: Axial, points 22 to 34
26
Strength to Weight: Bending, points 29 to 39
23
Thermal Diffusivity, mm2/s 56
4.6
Thermal Shock Resistance, points 9.3 to 15
21

Alloy Composition

Aluminum (Al), % 94.7 to 97.9
0
Carbon (C), % 0
0.1 to 0.2
Chromium (Cr), % 0 to 0.3
24.5 to 26.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
64.2 to 71.1
Magnesium (Mg), % 1.6 to 2.5
0
Manganese (Mn), % 0.5 to 1.1
0 to 2.0
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0.8 to 1.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0