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Grade 20 Titanium vs. 7010 Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 7010 aluminum belongs to the aluminum 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 grade 20 titanium and the bottom bar is 7010 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 5.7 to 17
3.9 to 6.8
Fatigue Strength, MPa 550 to 630
160 to 190
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 47
26
Shear Strength, MPa 560 to 740
300 to 340
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
520 to 590
Tensile Strength: Yield (Proof), MPa 850 to 1190
410 to 540

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 370
200
Melting Completion (Liquidus), °C 1660
630
Melting Onset (Solidus), °C 1600
480
Specific Heat Capacity, J/kg-K 520
860
Thermal Expansion, µm/m-K 9.6
24

Otherwise Unclassified Properties

Density, g/cm3 5.0
3.0
Embodied Carbon, kg CO2/kg material 52
8.3
Embodied Energy, MJ/kg 860
150
Embodied Water, L/kg 350
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
22 to 33
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
1230 to 2130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 33
45
Strength to Weight: Axial, points 50 to 70
47 to 54
Strength to Weight: Bending, points 41 to 52
47 to 52
Thermal Shock Resistance, points 55 to 77
22 to 26

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
87.9 to 90.6
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0 to 0.050
Copper (Cu), % 0
1.5 to 2.0
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 0.15
Magnesium (Mg), % 0
2.1 to 2.6
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0 to 0.12
Titanium (Ti), % 71 to 77
0 to 0.060
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
5.7 to 6.7
Zirconium (Zr), % 3.5 to 4.5
0.1 to 0.16
Residuals, % 0
0 to 0.15

Comparable Variants