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EN AC-51500 Aluminum vs. EN 1.4905 Stainless Steel

EN AC-51500 aluminum belongs to the aluminum alloys classification, while EN 1.4905 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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-51500 aluminum and the bottom bar is EN 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 5.6
19
Fatigue Strength, MPa 120
330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Tensile Strength: Ultimate (UTS), MPa 280
740
Tensile Strength: Yield (Proof), MPa 160
510

Thermal Properties

Latent Heat of Fusion, J/g 430
270
Maximum Temperature: Mechanical, °C 170
660
Melting Completion (Liquidus), °C 630
1480
Melting Onset (Solidus), °C 590
1440
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 88
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 9.0
2.8
Embodied Energy, MJ/kg 150
40
Embodied Water, L/kg 1150
90

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
130
Resilience: Unit (Modulus of Resilience), kJ/m3 190
680
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 29
26
Strength to Weight: Bending, points 36
23
Thermal Diffusivity, mm2/s 49
7.0
Thermal Shock Resistance, points 13
25

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0
0.090 to 0.13
Chromium (Cr), % 0
8.5 to 9.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.25
86.2 to 88.8
Magnesium (Mg), % 4.7 to 6.0
0
Manganese (Mn), % 0.4 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.050 to 0.090
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 1.8 to 2.6
0.1 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.15
0