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Grade 32 Titanium vs. Grade 35 Titanium

Both grade 32 titanium and grade 35 titanium are titanium alloys. Both are furnished in the annealed condition. They have a very high 97% 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 35 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 11
5.6
Fatigue Strength, MPa 390
330
Poisson's Ratio 0.32
0.32
Reduction in Area, % 28
23
Shear Modulus, GPa 40
41
Shear Strength, MPa 460
580
Tensile Strength: Ultimate (UTS), MPa 770
1000
Tensile Strength: Yield (Proof), MPa 670
630

Thermal Properties

Latent Heat of Fusion, J/g 410
420
Maximum Temperature: Mechanical, °C 310
320
Melting Completion (Liquidus), °C 1610
1630
Melting Onset (Solidus), °C 1560
1580
Specific Heat Capacity, J/kg-K 550
550
Thermal Conductivity, W/m-K 7.5
7.4
Thermal Expansion, µm/m-K 8.2
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
1.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 38
37
Density, g/cm3 4.5
4.6
Embodied Carbon, kg CO2/kg material 32
33
Embodied Energy, MJ/kg 530
530
Embodied Water, L/kg 180
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
49
Resilience: Unit (Modulus of Resilience), kJ/m3 2100
1830
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 47
61
Strength to Weight: Bending, points 41
49
Thermal Diffusivity, mm2/s 3.0
3.0
Thermal Shock Resistance, points 63
70

Alloy Composition

Aluminum (Al), % 4.5 to 5.5
4.0 to 5.0
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
0.2 to 0.8
Molybdenum (Mo), % 0.6 to 1.2
1.5 to 2.5
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.11
0 to 0.25
Silicon (Si), % 0.060 to 0.14
0.2 to 0.4
Tin (Sn), % 0.6 to 1.4
0
Titanium (Ti), % 88.1 to 93
88.4 to 93
Vanadium (V), % 0.6 to 1.4
1.1 to 2.1
Zirconium (Zr), % 0.6 to 1.4
0
Residuals, % 0 to 0.4
0 to 0.4