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R30035 Cobalt vs. R56401 Titanium

R30035 cobalt belongs to the cobalt alloys classification, while R56401 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is R30035 cobalt and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220 to 230
110
Elongation at Break, % 9.0 to 46
9.1
Fatigue Strength, MPa 170 to 740
480
Poisson's Ratio 0.29
0.32
Reduction in Area, % 40 to 74
17
Shear Modulus, GPa 84 to 89
40
Tensile Strength: Ultimate (UTS), MPa 900 to 1900
940
Tensile Strength: Yield (Proof), MPa 300 to 1650
850

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Melting Completion (Liquidus), °C 1440
1610
Melting Onset (Solidus), °C 1320
1560
Specific Heat Capacity, J/kg-K 440
560
Thermal Conductivity, W/m-K 11
7.1
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 100
36
Density, g/cm3 8.7
4.5
Embodied Carbon, kg CO2/kg material 10
38
Embodied Energy, MJ/kg 140
610
Embodied Water, L/kg 410
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 320
83
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 5920
3440
Stiffness to Weight: Axial, points 14 to 15
13
Stiffness to Weight: Bending, points 23 to 24
35
Strength to Weight: Axial, points 29 to 61
59
Strength to Weight: Bending, points 24 to 39
48
Thermal Diffusivity, mm2/s 3.0
2.9
Thermal Shock Resistance, points 23 to 46
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Boron (B), % 0 to 0.015
0
Carbon (C), % 0 to 0.025
0 to 0.080
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 29.1 to 39
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 0 to 1.0
0 to 0.25
Manganese (Mn), % 0 to 0.15
0
Molybdenum (Mo), % 9.0 to 10.5
0
Nickel (Ni), % 33 to 37
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.15
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 1.0
88.5 to 91
Vanadium (V), % 0
3.5 to 4.5