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7076 Aluminum vs. EN 1.8159 Steel

7076 aluminum belongs to the aluminum alloys classification, while EN 1.8159 steel belongs to the iron 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 7076 aluminum and the bottom bar is EN 1.8159 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200 to 360
Elastic (Young's, Tensile) Modulus, GPa 70
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 530
660 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 460
1410
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 140
46
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.9
Embodied Energy, MJ/kg 150
26
Embodied Water, L/kg 1110
52

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 49
23 to 70
Strength to Weight: Bending, points 48
21 to 45
Thermal Diffusivity, mm2/s 54
13
Thermal Shock Resistance, points 23
19 to 58

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
0
Carbon (C), % 0
0.47 to 0.55
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0.3 to 1.0
0
Iron (Fe), % 0 to 0.6
96.4 to 97.8
Magnesium (Mg), % 1.2 to 2.0
0
Manganese (Mn), % 0.3 to 0.8
0.7 to 1.1
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0.1 to 0.25
Zinc (Zn), % 7.0 to 8.0
0
Residuals, % 0 to 0.15
0