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EN 1.4423 Stainless Steel vs. EN AC-46300 Aluminum

EN 1.4423 stainless steel belongs to the iron alloys classification, while EN AC-46300 aluminum belongs to the aluminum alloys. There are 29 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 1.4423 stainless steel and the bottom bar is EN AC-46300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 17
1.1
Fatigue Strength, MPa 380
79
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 850
200
Tensile Strength: Yield (Proof), MPa 630
110

Thermal Properties

Latent Heat of Fusion, J/g 280
490
Maximum Temperature: Mechanical, °C 780
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
530
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 16
120
Thermal Expansion, µm/m-K 9.9
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
84

Otherwise Unclassified Properties

Base Metal Price, % relative 14
10
Density, g/cm3 7.9
2.9
Embodied Carbon, kg CO2/kg material 3.2
7.7
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 120
1060

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
1.9
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 30
20
Strength to Weight: Bending, points 25
27
Thermal Diffusivity, mm2/s 4.3
47
Thermal Shock Resistance, points 31
9.1

Alloy Composition

Aluminum (Al), % 0
84 to 90
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 11 to 13
0
Copper (Cu), % 0.2 to 0.8
3.0 to 4.0
Iron (Fe), % 73.8 to 80.5
0 to 0.8
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0
0.3 to 0.6
Manganese (Mn), % 0 to 2.0
0.2 to 0.65
Molybdenum (Mo), % 2.3 to 2.8
0
Nickel (Ni), % 6.0 to 7.0
0 to 0.3
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
6.5 to 8.0
Sulfur (S), % 0 to 0.0030
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.65
Residuals, % 0
0 to 0.55