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Grade 1 Titanium vs. R30075 Cobalt

Grade 1 titanium belongs to the titanium alloys classification, while R30075 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 1 titanium and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210 to 250
Elongation at Break, % 28
12
Fatigue Strength, MPa 170
250 to 840
Poisson's Ratio 0.32
0.29
Reduction in Area, % 36
20
Shear Modulus, GPa 39
82 to 98
Tensile Strength: Ultimate (UTS), MPa 310
780 to 1280
Tensile Strength: Yield (Proof), MPa 220
480 to 840

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Melting Completion (Liquidus), °C 1660
1360
Melting Onset (Solidus), °C 1610
1290
Specific Heat Capacity, J/kg-K 540
450
Thermal Conductivity, W/m-K 20
13
Thermal Expansion, µm/m-K 8.8
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.1

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.4
Embodied Carbon, kg CO2/kg material 31
8.1
Embodied Energy, MJ/kg 510
110
Embodied Water, L/kg 110
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
84 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 230
560 to 1410
Stiffness to Weight: Axial, points 13
14 to 17
Stiffness to Weight: Bending, points 35
24 to 25
Strength to Weight: Axial, points 19
26 to 42
Strength to Weight: Bending, points 23
22 to 31
Thermal Diffusivity, mm2/s 8.2
3.5
Thermal Shock Resistance, points 24
21 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Boron (B), % 0
0 to 0.010
Carbon (C), % 0 to 0.080
0 to 0.35
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
58.7 to 68
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.75
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0 to 0.030
0 to 0.25
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.095 to 100
0 to 0.1
Tungsten (W), % 0
0 to 0.2
Residuals, % 0 to 0.4
0