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6070 Aluminum vs. EN 1.1191 Steel

6070 aluminum belongs to the aluminum alloys classification, while EN 1.1191 steel belongs to the iron alloys. There are 30 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 6070 aluminum and the bottom bar is EN 1.1191 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 5.6 to 8.6
16 to 17
Fatigue Strength, MPa 95 to 130
210 to 290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Shear Strength, MPa 220 to 240
380 to 430
Tensile Strength: Ultimate (UTS), MPa 370 to 380
630 to 700
Tensile Strength: Yield (Proof), MPa 350
310 to 440

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 160
400
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
48
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.1
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1170
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 32
83 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 900
260 to 510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 38
22 to 25
Strength to Weight: Bending, points 42 to 43
21 to 22
Thermal Diffusivity, mm2/s 65
13
Thermal Shock Resistance, points 16 to 17
20 to 22

Alloy Composition

Aluminum (Al), % 94.6 to 98
0
Carbon (C), % 0
0.42 to 0.5
Chromium (Cr), % 0 to 0.1
0 to 0.4
Copper (Cu), % 0.15 to 0.4
0
Iron (Fe), % 0 to 0.5
97.3 to 99.08
Magnesium (Mg), % 0.5 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 1.0 to 1.7
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0