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EN 1.0308 Steel vs. 772.0 Aluminum

EN 1.0308 steel belongs to the iron alloys classification, while 772.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 1.0308 steel and the bottom bar is 772.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 7.8 to 28
6.3 to 8.4
Fatigue Strength, MPa 140 to 200
94 to 160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 360 to 440
260 to 320
Tensile Strength: Yield (Proof), MPa 190 to 340
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 250
380
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 51
150
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
110

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 1.4
8.0
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 46
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32 to 95
16 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 93 to 300
350 to 430
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 13 to 16
25 to 31
Strength to Weight: Bending, points 14 to 16
31 to 36
Thermal Diffusivity, mm2/s 14
58
Thermal Shock Resistance, points 11 to 14
11 to 14

Alloy Composition

Aluminum (Al), % 0
91.2 to 93.2
Carbon (C), % 0 to 0.17
0
Chromium (Cr), % 0
0.060 to 0.2
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 98.2 to 100
0 to 0.15
Magnesium (Mg), % 0
0.6 to 0.8
Manganese (Mn), % 0 to 1.2
0 to 0.1
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.35
0 to 0.15
Sulfur (S), % 0 to 0.045
0
Titanium (Ti), % 0
0.1 to 0.2
Zinc (Zn), % 0
6.0 to 7.0
Residuals, % 0
0 to 0.15