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Grade 11 Titanium vs. Grade 34 Titanium

Both grade 11 titanium and grade 34 titanium are titanium alloys. Both are furnished in the annealed condition. Their average alloy composition is basically identical. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 11 titanium and the bottom bar is grade 34 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 29
20
Fatigue Strength, MPa 170
310
Poisson's Ratio 0.32
0.32
Reduction in Area, % 37
34
Shear Modulus, GPa 38
41
Shear Strength, MPa 200
320
Tensile Strength: Ultimate (UTS), MPa 310
510
Tensile Strength: Yield (Proof), MPa 230
450

Thermal Properties

Latent Heat of Fusion, J/g 420
420
Maximum Temperature: Mechanical, °C 320
320
Melting Completion (Liquidus), °C 1660
1660
Melting Onset (Solidus), °C 1610
1610
Specific Heat Capacity, J/kg-K 540
540
Thermal Conductivity, W/m-K 22
21
Thermal Expansion, µm/m-K 9.2
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
6.7

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 47
33
Embodied Energy, MJ/kg 800
530
Embodied Water, L/kg 470
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
100
Resilience: Unit (Modulus of Resilience), kJ/m3 240
960
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 19
31
Strength to Weight: Bending, points 22
31
Thermal Diffusivity, mm2/s 8.9
8.4
Thermal Shock Resistance, points 22
39

Alloy Composition


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Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 0
0.1 to 0.2
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.3
Nickel (Ni), % 0
0.35 to 0.55
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.18
0 to 0.35
Palladium (Pd), % 0.12 to 0.25
0.010 to 0.020
Ruthenium (Ru), % 0
0.020 to 0.040
Titanium (Ti), % 98.8 to 99.88
98 to 99.52
Residuals, % 0 to 0.4
0 to 0.4