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Grade 34 Titanium vs. Grade 13 Titanium

Both grade 34 titanium and grade 13 titanium are titanium alloys. Both are furnished in the annealed condition. Their average alloy composition is basically identical.

For each property being compared, the top bar is grade 34 titanium and the bottom bar is grade 13 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
27
Fatigue Strength, MPa 310
140
Poisson's Ratio 0.32
0.32
Reduction in Area, % 34
34
Shear Modulus, GPa 41
41
Shear Strength, MPa 320
200
Tensile Strength: Ultimate (UTS), MPa 510
310
Tensile Strength: Yield (Proof), MPa 450
190

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 21
22
Thermal Expansion, µm/m-K 8.7
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 55
37
Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 33
32
Embodied Energy, MJ/kg 530
520
Embodied Water, L/kg 200
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
73
Resilience: Unit (Modulus of Resilience), kJ/m3 960
180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 31
19
Strength to Weight: Bending, points 31
22
Thermal Diffusivity, mm2/s 8.4
8.9
Thermal Shock Resistance, points 39
24

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 0.1 to 0.2
0
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.3
0 to 0.2
Nickel (Ni), % 0.35 to 0.55
0.4 to 0.6
Nitrogen (N), % 0 to 0.050
0 to 0.030
Oxygen (O), % 0 to 0.35
0 to 0.1
Palladium (Pd), % 0.010 to 0.020
0
Ruthenium (Ru), % 0.020 to 0.040
0.040 to 0.060
Titanium (Ti), % 98 to 99.52
98.5 to 99.56
Residuals, % 0
0 to 0.4