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C443.0 Aluminum vs. EN 1.4008 Stainless Steel

C443.0 aluminum belongs to the aluminum alloys classification, while EN 1.4008 stainless steel belongs to the iron 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 C443.0 aluminum and the bottom bar is EN 1.4008 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 9.0
17
Fatigue Strength, MPa 120
300
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 230
670
Tensile Strength: Yield (Proof), MPa 100
500

Thermal Properties

Latent Heat of Fusion, J/g 470
280
Maximum Temperature: Mechanical, °C 170
760
Melting Completion (Liquidus), °C 630
1450
Melting Onset (Solidus), °C 600
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 140
25
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 120
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
8.0
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.1
Embodied Energy, MJ/kg 150
30
Embodied Water, L/kg 1120
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
100
Resilience: Unit (Modulus of Resilience), kJ/m3 70
630
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 31
22
Thermal Diffusivity, mm2/s 58
6.7
Thermal Shock Resistance, points 10
23

Alloy Composition

Aluminum (Al), % 89.6 to 95.5
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
12 to 13.5
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 0 to 2.0
81.8 to 86.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.35
0 to 1.0
Molybdenum (Mo), % 0
0.2 to 0.5
Nickel (Ni), % 0 to 0.5
1.0 to 2.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 4.5 to 6.0
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.25
0