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Grade Ti-Pd8A Titanium vs. Grade 23 Titanium

Both grade Ti-Pd8A titanium and grade 23 titanium are titanium alloys. They have 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd8A titanium and the bottom bar is grade 23 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 13
6.7 to 11
Fatigue Strength, MPa 260
470 to 500
Poisson's Ratio 0.32
0.32
Rockwell C Hardness 21
32
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 500
930 to 940
Tensile Strength: Yield (Proof), MPa 430
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
340
Melting Completion (Liquidus), °C 1660
1610
Melting Onset (Solidus), °C 1610
1560
Specific Heat Capacity, J/kg-K 540
560
Thermal Conductivity, W/m-K 21
7.1
Thermal Expansion, µm/m-K 8.7
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.5
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
2.0

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.4
Embodied Carbon, kg CO2/kg material 49
38
Embodied Energy, MJ/kg 840
610
Embodied Water, L/kg 520
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
61 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 880
3430 to 3560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 31
58 to 59
Strength to Weight: Bending, points 31
48
Thermal Diffusivity, mm2/s 8.6
2.9
Thermal Shock Resistance, points 39
67 to 68

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.1
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.013
Iron (Fe), % 0 to 0.25
0 to 0.25
Nickel (Ni), % 0 to 0.050
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0 to 0.4
0 to 0.13
Palladium (Pd), % 0.12 to 0.3
0
Titanium (Ti), % 98.8 to 99.9
88.1 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0 to 0.4
0 to 0.4