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Grade Ti-Pd18 Titanium vs. EN 2.4964 Cobalt

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while EN 2.4964 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade Ti-Pd18 titanium and the bottom bar is EN 2.4964 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 17
40
Fatigue Strength, MPa 350
220
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
86
Tensile Strength: Ultimate (UTS), MPa 710
960
Tensile Strength: Yield (Proof), MPa 540
390

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Melting Completion (Liquidus), °C 1640
1630
Melting Onset (Solidus), °C 1590
1550
Specific Heat Capacity, J/kg-K 550
400
Thermal Conductivity, W/m-K 8.2
15
Thermal Expansion, µm/m-K 9.1
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.8

Otherwise Unclassified Properties

Density, g/cm3 4.5
9.6
Embodied Carbon, kg CO2/kg material 41
9.8
Embodied Energy, MJ/kg 670
140
Embodied Water, L/kg 270
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
310
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
21
Strength to Weight: Axial, points 44
28
Strength to Weight: Bending, points 39
23
Thermal Diffusivity, mm2/s 3.3
3.9
Thermal Shock Resistance, points 52
25

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 58
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 3.0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0 to 0.050
9.0 to 11
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 92.5 to 95.5
0
Tungsten (W), % 0
14 to 16
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0 to 0.4
0