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7076 Aluminum vs. EN 1.8505 Steel

7076 aluminum belongs to the aluminum alloys classification, while EN 1.8505 steel belongs to the iron alloys. There are 31 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 7076 aluminum and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
320
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 6.2
13
Fatigue Strength, MPa 170
540
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 310
630
Tensile Strength: Ultimate (UTS), MPa 530
1050
Tensile Strength: Yield (Proof), MPa 460
860

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 170
440
Melting Completion (Liquidus), °C 630
1450
Melting Onset (Solidus), °C 460
1410
Specific Heat Capacity, J/kg-K 860
480
Thermal Conductivity, W/m-K 140
39
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.8
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.6
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1110
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1510
1950
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 49
37
Strength to Weight: Bending, points 48
30
Thermal Diffusivity, mm2/s 54
11
Thermal Shock Resistance, points 23
31

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
0.8 to 1.2
Carbon (C), % 0
0.28 to 0.35
Chromium (Cr), % 0
1.5 to 1.8
Copper (Cu), % 0.3 to 1.0
0
Iron (Fe), % 0 to 0.6
95.4 to 97.1
Magnesium (Mg), % 1.2 to 2.0
0
Manganese (Mn), % 0.3 to 0.8
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 7.0 to 8.0
0
Residuals, % 0 to 0.15
0