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Grade 11 Titanium vs. R30035 Cobalt

Grade 11 titanium belongs to the titanium alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 28 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 11 titanium and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220 to 230
Elongation at Break, % 29
9.0 to 46
Fatigue Strength, MPa 170
170 to 740
Poisson's Ratio 0.32
0.29
Reduction in Area, % 37
40 to 74
Shear Modulus, GPa 38
84 to 89
Tensile Strength: Ultimate (UTS), MPa 310
900 to 1900
Tensile Strength: Yield (Proof), MPa 230
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Melting Completion (Liquidus), °C 1660
1440
Melting Onset (Solidus), °C 1610
1320
Specific Heat Capacity, J/kg-K 540
440
Thermal Conductivity, W/m-K 22
11
Thermal Expansion, µm/m-K 9.2
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
1.8

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.7
Embodied Carbon, kg CO2/kg material 47
10
Embodied Energy, MJ/kg 800
140
Embodied Water, L/kg 470
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
160 to 320
Resilience: Unit (Modulus of Resilience), kJ/m3 240
210 to 5920
Stiffness to Weight: Axial, points 13
14 to 15
Stiffness to Weight: Bending, points 35
23 to 24
Strength to Weight: Axial, points 19
29 to 61
Strength to Weight: Bending, points 22
24 to 39
Thermal Diffusivity, mm2/s 8.9
3.0
Thermal Shock Resistance, points 22
23 to 46

Alloy Composition


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Boron (B), % 0
0 to 0.015
Carbon (C), % 0 to 0.080
0 to 0.025
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
29.1 to 39
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 1.0
Manganese (Mn), % 0
0 to 0.15
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 0
33 to 37
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 98.8 to 99.88
0 to 1.0
Residuals, % 0 to 0.4
0