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6018-T6 Aluminum vs. 6151-T6 Aluminum

Both 6018-T6 aluminum and 6151-T6 aluminum are aluminum alloys. Both are furnished in the T6 temper. They have a very high 98% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 6018-T6 aluminum and the bottom bar is 6151-T6 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 9.0
5.7
Fatigue Strength, MPa 89
100
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 170
200
Tensile Strength: Ultimate (UTS), MPa 290
340
Tensile Strength: Yield (Proof), MPa 230
280

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 570
590
Specific Heat Capacity, J/kg-K 890
900
Thermal Conductivity, W/m-K 170
170
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
45
Electrical Conductivity: Equal Weight (Specific), % IACS 140
150

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
18
Resilience: Unit (Modulus of Resilience), kJ/m3 380
580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 48
50
Strength to Weight: Axial, points 28
34
Strength to Weight: Bending, points 34
39
Thermal Diffusivity, mm2/s 65
70
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 93.1 to 97.8
95.6 to 98.8
Bismuth (Bi), % 0.4 to 0.7
0
Chromium (Cr), % 0 to 0.1
0.15 to 0.35
Copper (Cu), % 0.15 to 0.4
0 to 0.35
Iron (Fe), % 0 to 0.7
0 to 1.0
Lead (Pb), % 0.4 to 1.2
0
Magnesium (Mg), % 0.6 to 1.2
0.45 to 0.8
Manganese (Mn), % 0.3 to 0.8
0 to 0.2
Silicon (Si), % 0.5 to 1.2
0.6 to 1.2
Titanium (Ti), % 0 to 0.2
0 to 0.15
Zinc (Zn), % 0 to 0.3
0 to 0.25
Residuals, % 0
0 to 0.15