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EN 1.3518 Steel vs. 7076 Aluminum

EN 1.3518 steel belongs to the iron alloys classification, while 7076 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 1.3518 steel and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 190
70
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 630
530

Thermal Properties

Latent Heat of Fusion, J/g 260
380
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1400
460
Specific Heat Capacity, J/kg-K 480
860
Thermal Conductivity, W/m-K 43
140
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
100

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
9.5
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.5
8.0
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 51
1110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 23
49
Strength to Weight: Bending, points 21
48
Thermal Diffusivity, mm2/s 12
54
Thermal Shock Resistance, points 19
23

Alloy Composition

Aluminum (Al), % 0 to 0.050
86.9 to 91.2
Carbon (C), % 0.93 to 1.1
0
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0 to 0.3
0.3 to 1.0
Iron (Fe), % 96.3 to 97.8
0 to 0.6
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 0.9 to 1.2
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.1
0
Oxygen (O), % 0 to 0.0015
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.45 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
7.0 to 8.0
Residuals, % 0
0 to 0.15