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EN AC-46300 Aluminum vs. S44800 Stainless Steel

EN AC-46300 aluminum belongs to the aluminum alloys classification, while S44800 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-46300 aluminum and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
190
Elastic (Young's, Tensile) Modulus, GPa 73
210
Elongation at Break, % 1.1
23
Fatigue Strength, MPa 79
300
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
82
Tensile Strength: Ultimate (UTS), MPa 200
590
Tensile Strength: Yield (Proof), MPa 110
450

Thermal Properties

Latent Heat of Fusion, J/g 490
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 530
1410
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 120
17
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 84
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
19
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.7
3.8
Embodied Energy, MJ/kg 140
52
Embodied Water, L/kg 1060
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9
120
Resilience: Unit (Modulus of Resilience), kJ/m3 89
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 47
4.6
Thermal Shock Resistance, points 9.1
19

Alloy Composition

Aluminum (Al), % 84 to 90
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 3.0 to 4.0
0 to 0.15
Iron (Fe), % 0 to 0.8
62.6 to 66.5
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.3 to 0.6
0
Manganese (Mn), % 0.2 to 0.65
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 0 to 0.3
2.0 to 2.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 6.5 to 8.0
0 to 0.2
Sulfur (S), % 0
0 to 0.020
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