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3105 Aluminum vs. EN 1.0420 Cast Steel

3105 aluminum belongs to the aluminum alloys classification, while EN 1.0420 cast 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 3105 aluminum and the bottom bar is EN 1.0420 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 1.1 to 20
28
Fatigue Strength, MPa 39 to 95
170
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 120 to 240
460
Tensile Strength: Yield (Proof), MPa 46 to 220
220

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 660
1470
Melting Onset (Solidus), °C 640
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 170
53
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.7
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.2
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1180
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
110
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12 to 24
16
Strength to Weight: Bending, points 20 to 31
17
Thermal Diffusivity, mm2/s 68
14
Thermal Shock Resistance, points 5.2 to 11
14

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
99.935 to 100
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0 to 0.15
0