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EN AC-46200 Aluminum vs. S21900 Stainless Steel

EN AC-46200 aluminum belongs to the aluminum alloys classification, while S21900 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 EN AC-46200 aluminum and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 82
220
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.1
50
Fatigue Strength, MPa 87
380
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 210
710
Tensile Strength: Yield (Proof), MPa 130
390

Thermal Properties

Latent Heat of Fusion, J/g 510
290
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 620
1400
Melting Onset (Solidus), °C 540
1350
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 110
14
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 7.7
3.0
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 1060
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.0
300
Resilience: Unit (Modulus of Resilience), kJ/m3 110
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 28
23
Thermal Diffusivity, mm2/s 44
3.8
Thermal Shock Resistance, points 9.5
15

Alloy Composition

Aluminum (Al), % 82.6 to 90.3
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 2.0 to 3.5
0
Iron (Fe), % 0 to 0.8
59.4 to 67.4
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0.050 to 0.55
0
Manganese (Mn), % 0.15 to 0.65
8.0 to 10
Nickel (Ni), % 0 to 0.35
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 7.5 to 9.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.2
0
Residuals, % 0 to 0.25
0