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C443.0 Aluminum vs. EN 1.4618 Stainless Steel

C443.0 aluminum belongs to the aluminum alloys classification, while EN 1.4618 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 9.0
51
Fatigue Strength, MPa 120
240 to 250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 130
480 to 500
Tensile Strength: Ultimate (UTS), MPa 230
680 to 700
Tensile Strength: Yield (Proof), MPa 100
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 470
280
Maximum Temperature: Mechanical, °C 170
900
Melting Completion (Liquidus), °C 630
1400
Melting Onset (Solidus), °C 600
1360
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1120
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 70
160 to 170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 24
24 to 25
Strength to Weight: Bending, points 31
22 to 23
Thermal Diffusivity, mm2/s 58
4.0
Thermal Shock Resistance, points 10
15 to 16

Alloy Composition

Aluminum (Al), % 89.6 to 95.5
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.6
1.0 to 2.5
Iron (Fe), % 0 to 2.0
62.7 to 72.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.35
5.5 to 9.5
Nickel (Ni), % 0 to 0.5
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 4.5 to 6.0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.25
0