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EN 1.4823 Stainless Steel vs. 4047 Aluminum

EN 1.4823 stainless steel belongs to the iron alloys classification, while 4047 aluminum belongs to the aluminum alloys. There are 29 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 1.4823 stainless steel and the bottom bar is 4047 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 3.4
3.4
Fatigue Strength, MPa 130
45
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
27
Tensile Strength: Ultimate (UTS), MPa 620
120
Tensile Strength: Yield (Proof), MPa 290
64

Thermal Properties

Latent Heat of Fusion, J/g 320
570
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1400
580
Melting Onset (Solidus), °C 1360
580
Specific Heat Capacity, J/kg-K 490
900
Thermal Conductivity, W/m-K 17
130
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
120

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.6
2.5
Embodied Carbon, kg CO2/kg material 3.0
7.7
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 170
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
3.5
Resilience: Unit (Modulus of Resilience), kJ/m3 200
28
Stiffness to Weight: Axial, points 15
16
Stiffness to Weight: Bending, points 26
55
Strength to Weight: Axial, points 23
13
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 4.5
59
Thermal Shock Resistance, points 17
5.6

Alloy Composition

Aluminum (Al), % 0
85.3 to 89
Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 25 to 28
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 60.9 to 70.7
0 to 0.8
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.5
0 to 0.15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 3.0 to 6.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
11 to 13
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15