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Grade Ti-Pd17 Titanium vs. R30016 Cobalt

Grade Ti-Pd17 titanium belongs to the titanium alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd17 titanium and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 22
8.4
Fatigue Strength, MPa 140
290
Poisson's Ratio 0.32
0.28
Rockwell C Hardness 21
37
Shear Modulus, GPa 40
85
Tensile Strength: Ultimate (UTS), MPa 270
1010
Tensile Strength: Yield (Proof), MPa 190
580

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Melting Completion (Liquidus), °C 1660
1360
Melting Onset (Solidus), °C 1610
1270
Specific Heat Capacity, J/kg-K 540
450
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.0

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.5
Embodied Carbon, kg CO2/kg material 36
7.7
Embodied Energy, MJ/kg 600
110
Embodied Water, L/kg 230
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
72
Resilience: Unit (Modulus of Resilience), kJ/m3 180
770
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 17
33
Strength to Weight: Bending, points 21
26
Thermal Diffusivity, mm2/s 8.8
3.9
Thermal Shock Resistance, points 21
24

Alloy Composition

Carbon (C), % 0 to 0.1
0.9 to 1.4
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 3.0
Manganese (Mn), % 0
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.030
0 to 3.0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0.2 to 2.0
Titanium (Ti), % 98.9 to 99.96
0
Tungsten (W), % 0
3.5 to 5.5
Residuals, % 0 to 0.4
0