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EN AC-51200 Aluminum vs. S32520 Stainless Steel

EN AC-51200 aluminum belongs to the aluminum alloys classification, while S32520 stainless steel belongs to the iron alloys. There are 30 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-51200 aluminum and the bottom bar is S32520 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
270
Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 1.1
28
Fatigue Strength, MPa 100
460
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 25
80
Tensile Strength: Ultimate (UTS), MPa 220
860
Tensile Strength: Yield (Proof), MPa 150
630

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 92
15
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 74
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
20
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.6
4.0
Embodied Energy, MJ/kg 150
55
Embodied Water, L/kg 1150
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2
220
Resilience: Unit (Modulus of Resilience), kJ/m3 160
960
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 24
31
Strength to Weight: Bending, points 31
26
Thermal Diffusivity, mm2/s 39
4.1
Thermal Shock Resistance, points 10
24

Alloy Composition

Aluminum (Al), % 84.5 to 92
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.1
0.5 to 2.0
Iron (Fe), % 0 to 1.0
57.3 to 66.8
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 8.0 to 10.5
0
Manganese (Mn), % 0 to 0.55
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.1
5.5 to 8.0
Nitrogen (N), % 0
0.2 to 0.35
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 2.5
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0