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EN 1.6781 Steel vs. A360.0 Aluminum

EN 1.6781 steel belongs to the iron alloys classification, while A360.0 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.6781 steel and the bottom bar is A360.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
75
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 17
1.6 to 5.0
Fatigue Strength, MPa 450
82 to 150
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 830
180 to 320
Tensile Strength: Yield (Proof), MPa 680
170 to 260

Thermal Properties

Latent Heat of Fusion, J/g 260
530
Maximum Temperature: Mechanical, °C 450
170
Melting Completion (Liquidus), °C 1460
680
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 44
110
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
30
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 1.9
7.8
Embodied Energy, MJ/kg 25
150
Embodied Water, L/kg 60
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
4.6 to 13
Resilience: Unit (Modulus of Resilience), kJ/m3 1220
190 to 470
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 29
19 to 34
Strength to Weight: Bending, points 25
27 to 39
Thermal Diffusivity, mm2/s 12
48
Thermal Shock Resistance, points 24
8.5 to 15

Alloy Composition

Aluminum (Al), % 0
85.8 to 90.6
Carbon (C), % 0.15 to 0.19
0
Chromium (Cr), % 1.3 to 1.8
0
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 92.6 to 94.6
0 to 1.3
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0.55 to 0.8
0 to 0.35
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 3.0 to 3.5
0 to 0.5
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.5
9.0 to 10
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.25