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Grade 20 Titanium vs. Grade 32 Titanium

Both grade 20 titanium and grade 32 titanium are titanium alloys. They have 81% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is grade 32 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 5.7 to 17
11
Fatigue Strength, MPa 550 to 630
390
Poisson's Ratio 0.32
0.32
Reduction in Area, % 23
28
Shear Modulus, GPa 47
40
Shear Strength, MPa 560 to 740
460
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
770
Tensile Strength: Yield (Proof), MPa 850 to 1190
670

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 370
310
Melting Completion (Liquidus), °C 1660
1610
Melting Onset (Solidus), °C 1600
1560
Specific Heat Capacity, J/kg-K 520
550
Thermal Expansion, µm/m-K 9.6
8.2

Otherwise Unclassified Properties

Density, g/cm3 5.0
4.5
Embodied Carbon, kg CO2/kg material 52
32
Embodied Energy, MJ/kg 860
530
Embodied Water, L/kg 350
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
83
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
2100
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 33
35
Strength to Weight: Axial, points 50 to 70
47
Strength to Weight: Bending, points 41 to 52
41
Thermal Shock Resistance, points 55 to 77
63

Alloy Composition


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Aluminum (Al), % 3.0 to 4.0
4.5 to 5.5
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 5.5 to 6.5
0
Hydrogen (H), % 0 to 0.020
0 to 0.015
Iron (Fe), % 0 to 0.3
0 to 0.25
Molybdenum (Mo), % 3.5 to 4.5
0.6 to 1.2
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0 to 0.12
0 to 0.11
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0.060 to 0.14
Tin (Sn), % 0
0.6 to 1.4
Titanium (Ti), % 71 to 77
88.1 to 93
Vanadium (V), % 7.5 to 8.5
0.6 to 1.4
Zirconium (Zr), % 3.5 to 4.5
0.6 to 1.4
Residuals, % 0 to 0.4
0 to 0.4