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Grade Ti-Pd18 Titanium vs. AWS BCo-1

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while AWS BCo-1 belongs to the cobalt alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd18 titanium and the bottom bar is AWS BCo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 710
700

Thermal Properties

Latent Heat of Fusion, J/g 410
420
Melting Completion (Liquidus), °C 1640
1150
Melting Onset (Solidus), °C 1590
1120
Specific Heat Capacity, J/kg-K 550
480
Thermal Expansion, µm/m-K 9.1
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.1
Embodied Carbon, kg CO2/kg material 41
8.0
Embodied Energy, MJ/kg 670
110
Embodied Water, L/kg 270
430

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 44
24
Strength to Weight: Bending, points 39
22
Thermal Shock Resistance, points 52
21

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0 to 0.050
Boron (B), % 0
0.7 to 0.9
Carbon (C), % 0 to 0.1
0.35 to 0.45
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
46 to 54
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 1.0
Nickel (Ni), % 0 to 0.050
16 to 18
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
7.5 to 8.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 92.5 to 95.5
0 to 0.050
Tungsten (W), % 0
3.5 to 4.5
Vanadium (V), % 2.0 to 3.0
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5