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6070 Aluminum vs. EN 1.8818 Steel

6070 aluminum belongs to the aluminum alloys classification, while EN 1.8818 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 1.8818 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 5.6 to 8.6
27
Fatigue Strength, MPa 95 to 130
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 220 to 240
280
Tensile Strength: Ultimate (UTS), MPa 370 to 380
440
Tensile Strength: Yield (Proof), MPa 350
270

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
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.6
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1170
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 32
110
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 900
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 38
16
Strength to Weight: Bending, points 42 to 43
16
Thermal Diffusivity, mm2/s 65
13
Thermal Shock Resistance, points 16 to 17
13

Alloy Composition

Aluminum (Al), % 94.6 to 98
0.015 to 0.034
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
0 to 0.35
Copper (Cu), % 0.15 to 0.4
0 to 0.6
Iron (Fe), % 0 to 0.5
95.9 to 99.985
Magnesium (Mg), % 0.5 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
0 to 1.6
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 0
0 to 0.35
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.017
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 1.0 to 1.7
0 to 0.55
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0 to 0.060
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0