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6351 Aluminum vs. 518.0 Aluminum

Both 6351 aluminum and 518.0 aluminum are aluminum alloys. They have a moderately high 92% 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 6351 aluminum and the bottom bar is 518.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
67
Elongation at Break, % 7.8 to 18
5.0
Fatigue Strength, MPa 79 to 130
140
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
25
Shear Strength, MPa 84 to 200
200
Tensile Strength: Ultimate (UTS), MPa 140 to 310
310
Tensile Strength: Yield (Proof), MPa 95 to 270
190

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 650
620
Melting Onset (Solidus), °C 570
560
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 180
98
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
24
Electrical Conductivity: Equal Weight (Specific), % IACS 150
81

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.3
9.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 38
14
Resilience: Unit (Modulus of Resilience), kJ/m3 65 to 540
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
51
Strength to Weight: Axial, points 14 to 32
32
Strength to Weight: Bending, points 22 to 38
38
Thermal Diffusivity, mm2/s 72
40
Thermal Shock Resistance, points 6.1 to 14
14

Alloy Composition

Aluminum (Al), % 96 to 98.5
88.1 to 92.5
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.5
0 to 1.8
Magnesium (Mg), % 0.4 to 0.8
7.5 to 8.5
Manganese (Mn), % 0.4 to 0.8
0 to 0.35
Nickel (Ni), % 0
0 to 0.15
Silicon (Si), % 0.7 to 1.3
0 to 0.35
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.2
0 to 0.15
Residuals, % 0
0 to 0.25