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6012 Aluminum vs. 6351 Aluminum

Both 6012 aluminum and 6351 aluminum are aluminum alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is 6012 aluminum and the bottom bar is 6351 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 9.1 to 11
7.8 to 18
Fatigue Strength, MPa 55 to 100
79 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 130 to 190
84 to 200
Tensile Strength: Ultimate (UTS), MPa 220 to 320
140 to 310
Tensile Strength: Yield (Proof), MPa 110 to 260
95 to 270

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 570
570
Specific Heat Capacity, J/kg-K 890
900
Thermal Conductivity, W/m-K 160
180
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
46
Electrical Conductivity: Equal Weight (Specific), % IACS 140
150

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 28
20 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 480
65 to 540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 48
50
Strength to Weight: Axial, points 22 to 32
14 to 32
Strength to Weight: Bending, points 29 to 37
22 to 38
Thermal Diffusivity, mm2/s 62
72
Thermal Shock Resistance, points 10 to 14
6.1 to 14

Alloy Composition

Aluminum (Al), % 92.2 to 98
96 to 98.5
Bismuth (Bi), % 0 to 0.7
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.5
0 to 0.5
Lead (Pb), % 0.4 to 2.0
0
Magnesium (Mg), % 0.6 to 1.2
0.4 to 0.8
Manganese (Mn), % 0.4 to 1.0
0.4 to 0.8
Silicon (Si), % 0.6 to 1.4
0.7 to 1.3
Titanium (Ti), % 0 to 0.2
0 to 0.2
Zinc (Zn), % 0 to 0.3
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants