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6101B Aluminum vs. EN 1.6311 Steel

6101B aluminum belongs to the aluminum alloys classification, while EN 1.6311 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 6101B aluminum and the bottom bar is EN 1.6311 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 9.1 to 13
19
Fatigue Strength, MPa 62 to 70
340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 120 to 150
400
Tensile Strength: Ultimate (UTS), MPa 190 to 250
650
Tensile Strength: Yield (Proof), MPa 140 to 180
490

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 160
410
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 630
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 210
39
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 57
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 190
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.9
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.6
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1190
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 23
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 240
650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 20 to 25
23
Strength to Weight: Bending, points 27 to 32
21
Thermal Diffusivity, mm2/s 87
10
Thermal Shock Resistance, points 8.5 to 11
19

Alloy Composition

Aluminum (Al), % 98.2 to 99.3
0
Carbon (C), % 0
0.15 to 0.23
Chromium (Cr), % 0
0 to 0.5
Copper (Cu), % 0 to 0.050
0 to 0.2
Iron (Fe), % 0.1 to 0.3
95.9 to 98
Magnesium (Mg), % 0.35 to 0.6
0
Manganese (Mn), % 0 to 0.050
1.0 to 1.5
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0
0.4 to 0.8
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.3 to 0.6
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Vanadium (V), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.1
0