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5049 Aluminum vs. EN 1.4565 Stainless Steel

5049 aluminum belongs to the aluminum alloys classification, while EN 1.4565 stainless steel belongs to the iron alloys. There are 30 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 5049 aluminum and the bottom bar is EN 1.4565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
210
Elongation at Break, % 2.0 to 18
35
Fatigue Strength, MPa 79 to 130
380
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
81
Shear Strength, MPa 130 to 190
590
Tensile Strength: Ultimate (UTS), MPa 210 to 330
880
Tensile Strength: Yield (Proof), MPa 91 to 280
480

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 650
1420
Melting Onset (Solidus), °C 620
1380
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 140
12
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
28
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.5
5.4
Embodied Energy, MJ/kg 150
74
Embodied Water, L/kg 1180
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 31
260
Resilience: Unit (Modulus of Resilience), kJ/m3 59 to 570
550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 22 to 34
31
Strength to Weight: Bending, points 29 to 39
26
Thermal Diffusivity, mm2/s 56
3.2
Thermal Shock Resistance, points 9.3 to 15
21

Alloy Composition

Aluminum (Al), % 94.7 to 97.9
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.3
24 to 26
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
41.2 to 50.7
Magnesium (Mg), % 1.6 to 2.5
0
Manganese (Mn), % 0.5 to 1.1
5.0 to 7.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
16 to 19
Niobium (Nb), % 0
0 to 0.15
Nitrogen (N), % 0
0.3 to 0.6
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 1.0
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