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6008 Aluminum vs. Grade 20 Titanium

6008 aluminum belongs to the aluminum alloys classification, while grade 20 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is 6008 aluminum and the bottom bar is grade 20 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 9.1 to 17
5.7 to 17
Fatigue Strength, MPa 55 to 88
550 to 630
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
47
Shear Strength, MPa 120 to 170
560 to 740
Tensile Strength: Ultimate (UTS), MPa 200 to 290
900 to 1270
Tensile Strength: Yield (Proof), MPa 100 to 220
850 to 1190

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 180
370
Melting Completion (Liquidus), °C 640
1660
Melting Onset (Solidus), °C 620
1600
Specific Heat Capacity, J/kg-K 900
520
Thermal Expansion, µm/m-K 23
9.6

Otherwise Unclassified Properties

Density, g/cm3 2.7
5.0
Embodied Carbon, kg CO2/kg material 8.5
52
Embodied Energy, MJ/kg 160
860
Embodied Water, L/kg 1180
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 28
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 360
2940 to 5760
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
33
Strength to Weight: Axial, points 21 to 29
50 to 70
Strength to Weight: Bending, points 28 to 35
41 to 52
Thermal Shock Resistance, points 9.0 to 13
55 to 77

Alloy Composition

Aluminum (Al), % 96.5 to 99.1
3.0 to 4.0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.3
5.5 to 6.5
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.020
Iron (Fe), % 0 to 0.35
0 to 0.3
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.3
0
Molybdenum (Mo), % 0
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 0.5 to 0.9
0
Titanium (Ti), % 0 to 0.1
71 to 77
Vanadium (V), % 0.050 to 0.2
7.5 to 8.5
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4

Comparable Variants