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EN AC-46300 Aluminum vs. S21603 Stainless Steel

EN AC-46300 aluminum belongs to the aluminum alloys classification, while S21603 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, 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-46300 aluminum and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
200
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.1
45
Fatigue Strength, MPa 79
360
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 200
690
Tensile Strength: Yield (Proof), MPa 110
390

Thermal Properties

Latent Heat of Fusion, J/g 490
290
Maximum Temperature: Mechanical, °C 170
990
Melting Completion (Liquidus), °C 630
1420
Melting Onset (Solidus), °C 530
1380
Specific Heat Capacity, J/kg-K 880
480
Thermal Expansion, µm/m-K 22
17

Otherwise Unclassified Properties

Base Metal Price, % relative 10
17
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.7
3.6
Embodied Energy, MJ/kg 140
50
Embodied Water, L/kg 1060
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9
270
Resilience: Unit (Modulus of Resilience), kJ/m3 89
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 27
22
Thermal Shock Resistance, points 9.1
15

Alloy Composition


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Aluminum (Al), % 84 to 90
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 0.8
57.6 to 67.8
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.3 to 0.6
0
Manganese (Mn), % 0.2 to 0.65
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.3
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 6.5 to 8.0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.65
0
Residuals, % 0 to 0.55
0