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Grade 20 Titanium vs. 4032 Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while 4032 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is 4032 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
73
Elongation at Break, % 5.7 to 17
6.7
Fatigue Strength, MPa 550 to 630
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
28
Shear Strength, MPa 560 to 740
260
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
390
Tensile Strength: Yield (Proof), MPa 850 to 1190
320

Thermal Properties

Latent Heat of Fusion, J/g 400
570
Maximum Temperature: Mechanical, °C 370
180
Melting Completion (Liquidus), °C 1660
570
Melting Onset (Solidus), °C 1600
530
Specific Heat Capacity, J/kg-K 520
900
Thermal Expansion, µm/m-K 9.6
19

Otherwise Unclassified Properties

Density, g/cm3 5.0
2.6
Embodied Carbon, kg CO2/kg material 52
7.8
Embodied Energy, MJ/kg 860
140
Embodied Water, L/kg 350
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
25
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
700
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 33
53
Strength to Weight: Axial, points 50 to 70
41
Strength to Weight: Bending, points 41 to 52
45
Thermal Shock Resistance, points 55 to 77
20

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
81.1 to 87.2
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0 to 0.1
Copper (Cu), % 0
0.5 to 1.3
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 1.0
Magnesium (Mg), % 0
0.8 to 1.3
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
0.5 to 1.3
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
11 to 13.5
Titanium (Ti), % 71 to 77
0
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.15