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Grade 32 Titanium vs. Grade 9 Titanium

Both grade 32 titanium and grade 9 titanium are titanium alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is grade 32 titanium and the bottom bar is grade 9 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 11
11 to 17
Fatigue Strength, MPa 390
330 to 480
Poisson's Ratio 0.32
0.32
Reduction in Area, % 28
28
Shear Modulus, GPa 40
40
Shear Strength, MPa 460
430 to 580
Tensile Strength: Ultimate (UTS), MPa 770
700 to 960
Tensile Strength: Yield (Proof), MPa 670
540 to 830

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 310
330
Melting Completion (Liquidus), °C 1610
1640
Melting Onset (Solidus), °C 1560
1590
Specific Heat Capacity, J/kg-K 550
550
Thermal Conductivity, W/m-K 7.5
8.1
Thermal Expansion, µm/m-K 8.2
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 38
37
Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 32
36
Embodied Energy, MJ/kg 530
580
Embodied Water, L/kg 180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 2100
1380 to 3220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 47
43 to 60
Strength to Weight: Bending, points 41
39 to 48
Thermal Diffusivity, mm2/s 3.0
3.3
Thermal Shock Resistance, points 63
52 to 71

Alloy Composition

Aluminum (Al), % 4.5 to 5.5
2.5 to 3.5
Carbon (C), % 0 to 0.080
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.25
0 to 0.25
Molybdenum (Mo), % 0.6 to 1.2
0
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0 to 0.11
0 to 0.15
Silicon (Si), % 0.060 to 0.14
0
Tin (Sn), % 0.6 to 1.4
0
Titanium (Ti), % 88.1 to 93
92.6 to 95.5
Vanadium (V), % 0.6 to 1.4
2.0 to 3.0
Zirconium (Zr), % 0.6 to 1.4
0
Residuals, % 0 to 0.4
0 to 0.4