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Grade 27 Titanium vs. Grade Ti-Pd17 Titanium

Both grade 27 titanium and grade Ti-Pd17 titanium are titanium alloys. Their average alloy composition is basically identical. There are 28 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 27 titanium and the bottom bar is grade Ti-Pd17 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 27
22
Fatigue Strength, MPa 170
140
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 270
270
Tensile Strength: Yield (Proof), MPa 230
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
21
Thermal Expansion, µm/m-K 8.7
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
7.1

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 33
36
Embodied Energy, MJ/kg 530
600
Embodied Water, L/kg 320
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
55
Resilience: Unit (Modulus of Resilience), kJ/m3 240
180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 8.8
8.8
Thermal Shock Resistance, points 21
21

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.2
Nickel (Ni), % 0
0 to 0.030
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0 to 0.25
Palladium (Pd), % 0
0.040 to 0.080
Ruthenium (Ru), % 0.080 to 0.14
0
Titanium (Ti), % 99 to 99.92
98.9 to 99.96
Residuals, % 0
0 to 0.4