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5051A Aluminum vs. EN 1.4527 Stainless Steel

5051A aluminum belongs to the aluminum alloys classification, while EN 1.4527 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 5051A aluminum and the bottom bar is EN 1.4527 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 18 to 21
40
Fatigue Strength, MPa 51 to 61
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 170
480
Tensile Strength: Yield (Proof), MPa 56
190

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 610
1360
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
15
Thermal Expansion, µm/m-K 23
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
32
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.5
5.6
Embodied Energy, MJ/kg 150
78
Embodied Water, L/kg 1190
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 27
150
Resilience: Unit (Modulus of Resilience), kJ/m3 23
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 17 to 18
17
Strength to Weight: Bending, points 25
17
Thermal Diffusivity, mm2/s 63
4.0
Thermal Shock Resistance, points 7.6
12

Alloy Composition

Aluminum (Al), % 96.1 to 98.6
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0 to 0.3
19 to 22
Copper (Cu), % 0 to 0.050
3.0 to 4.0
Iron (Fe), % 0 to 0.45
37.4 to 48.5
Magnesium (Mg), % 1.4 to 2.1
0
Manganese (Mn), % 0 to 0.25
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0