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4104 Aluminum vs. EN 1.4823 Stainless Steel

4104 aluminum belongs to the aluminum alloys classification, while EN 1.4823 stainless steel belongs to the iron 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 4104 aluminum and the bottom bar is EN 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 2.4
3.4
Fatigue Strength, MPa 42
130
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 110
620
Tensile Strength: Yield (Proof), MPa 60
290

Thermal Properties

Latent Heat of Fusion, J/g 540
320
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 600
1400
Melting Onset (Solidus), °C 560
1360
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 130
17
Thermal Expansion, µm/m-K 22
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
16
Density, g/cm3 2.6
7.6
Embodied Carbon, kg CO2/kg material 8.0
3.0
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1080
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
17
Resilience: Unit (Modulus of Resilience), kJ/m3 25
200
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 54
26
Strength to Weight: Axial, points 12
23
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 58
4.5
Thermal Shock Resistance, points 5.1
17

Alloy Composition

Aluminum (Al), % 85.8 to 90
0
Bismuth (Bi), % 0.020 to 0.2
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.8
60.9 to 70.7
Magnesium (Mg), % 1.0 to 2.0
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
3.0 to 6.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 9.0 to 10.5
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0