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R30006 Cobalt vs. R58150 Titanium

R30006 cobalt belongs to the cobalt alloys classification, while R58150 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is R58150 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
140
Elongation at Break, % 1.0
13
Fatigue Strength, MPa 260
330
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 85
52
Tensile Strength: Ultimate (UTS), MPa 900
770
Tensile Strength: Yield (Proof), MPa 540
550

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Melting Completion (Liquidus), °C 1400
1760
Melting Onset (Solidus), °C 1290
1700
Specific Heat Capacity, J/kg-K 450
500
Thermal Expansion, µm/m-K 11
8.4

Otherwise Unclassified Properties

Density, g/cm3 8.6
5.4
Embodied Carbon, kg CO2/kg material 7.8
31
Embodied Energy, MJ/kg 110
480
Embodied Water, L/kg 500
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
94
Resilience: Unit (Modulus of Resilience), kJ/m3 670
1110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
32
Strength to Weight: Axial, points 29
40
Strength to Weight: Bending, points 24
35
Thermal Shock Resistance, points 26
48

Alloy Composition

Carbon (C), % 0.9 to 1.4
0 to 0.1
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 3.0
0 to 0.1
Molybdenum (Mo), % 0 to 1.0
14 to 16
Nickel (Ni), % 0 to 3.0
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 2.0
0
Titanium (Ti), % 0
83.5 to 86
Tungsten (W), % 4.0 to 6.0
0