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518.0 Aluminum vs. Grade 6 Titanium

518.0 aluminum belongs to the aluminum alloys classification, while grade 6 titanium belongs to the titanium 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.

For each property being compared, the top bar is 518.0 aluminum and the bottom bar is grade 6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
100
Elongation at Break, % 5.0
11
Fatigue Strength, MPa 140
290
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
39
Shear Strength, MPa 200
530
Tensile Strength: Ultimate (UTS), MPa 310
890
Tensile Strength: Yield (Proof), MPa 190
840

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 170
310
Melting Completion (Liquidus), °C 620
1580
Melting Onset (Solidus), °C 560
1530
Specific Heat Capacity, J/kg-K 900
550
Thermal Conductivity, W/m-K 98
7.8
Thermal Expansion, µm/m-K 24
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 81
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 9.4
30
Embodied Energy, MJ/kg 150
480
Embodied Water, L/kg 1160
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
92
Resilience: Unit (Modulus of Resilience), kJ/m3 270
3390
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
35
Strength to Weight: Axial, points 32
55
Strength to Weight: Bending, points 38
46
Thermal Diffusivity, mm2/s 40
3.2
Thermal Shock Resistance, points 14
65

Alloy Composition

Aluminum (Al), % 88.1 to 92.5
4.0 to 6.0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 1.8
0 to 0.5
Magnesium (Mg), % 7.5 to 8.5
0
Manganese (Mn), % 0 to 0.35
0
Nickel (Ni), % 0 to 0.15
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.35
0
Tin (Sn), % 0 to 0.15
2.0 to 3.0
Titanium (Ti), % 0
89.8 to 94
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0
0 to 0.4