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EN AC-44500 Aluminum vs. N08535 Stainless Steel

EN AC-44500 aluminum belongs to the aluminum alloys classification, while N08535 stainless steel belongs to the iron alloys. There are 29 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 EN AC-44500 aluminum and the bottom bar is N08535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.1
46
Fatigue Strength, MPa 110
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 270
570
Tensile Strength: Yield (Proof), MPa 160
240

Thermal Properties

Latent Heat of Fusion, J/g 570
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 590
1420
Melting Onset (Solidus), °C 580
1370
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
13
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 120
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.5
8.1
Embodied Carbon, kg CO2/kg material 7.7
6.3
Embodied Energy, MJ/kg 140
87
Embodied Water, L/kg 1050
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
210
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 29
20
Strength to Weight: Bending, points 36
19
Thermal Diffusivity, mm2/s 57
3.3
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 83.7 to 89.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 27
Copper (Cu), % 0 to 0.2
0 to 1.5
Iron (Fe), % 0 to 1.0
29.4 to 44.5
Magnesium (Mg), % 0 to 0.4
0
Manganese (Mn), % 0 to 0.55
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 4.0
Nickel (Ni), % 0
29 to 36.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 13.5
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.25
0