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R58150 Titanium vs. R30012 Cobalt

R58150 titanium belongs to the titanium alloys classification, while R30012 cobalt belongs to the cobalt alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R58150 titanium and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
220
Elongation at Break, % 13
1.0
Fatigue Strength, MPa 330
320
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 52
86
Tensile Strength: Ultimate (UTS), MPa 770
830
Tensile Strength: Yield (Proof), MPa 550
650

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Melting Completion (Liquidus), °C 1760
1470
Melting Onset (Solidus), °C 1700
1280
Specific Heat Capacity, J/kg-K 500
440
Thermal Expansion, µm/m-K 8.4
12

Otherwise Unclassified Properties

Density, g/cm3 5.4
8.8
Embodied Carbon, kg CO2/kg material 31
8.3
Embodied Energy, MJ/kg 480
120
Embodied Water, L/kg 150
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
960
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 32
23
Strength to Weight: Axial, points 40
26
Strength to Weight: Bending, points 35
22
Thermal Shock Resistance, points 48
23

Alloy Composition

Carbon (C), % 0 to 0.1
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
0 to 3.0
Molybdenum (Mo), % 14 to 16
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
0 to 2.0
Titanium (Ti), % 83.5 to 86
0
Tungsten (W), % 0
7.5 to 9.5