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Grade 6 Titanium vs. R30006 Cobalt

Grade 6 titanium belongs to the titanium alloys classification, while R30006 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 11
1.0
Fatigue Strength, MPa 290
260
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 39
85
Tensile Strength: Ultimate (UTS), MPa 890
900
Tensile Strength: Yield (Proof), MPa 840
540

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Melting Completion (Liquidus), °C 1580
1400
Melting Onset (Solidus), °C 1530
1290
Specific Heat Capacity, J/kg-K 550
450
Thermal Conductivity, W/m-K 7.8
15
Thermal Expansion, µm/m-K 9.4
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.7

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.6
Embodied Carbon, kg CO2/kg material 30
7.8
Embodied Energy, MJ/kg 480
110
Embodied Water, L/kg 190
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
670
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 55
29
Strength to Weight: Bending, points 46
24
Thermal Diffusivity, mm2/s 3.2
3.9
Thermal Shock Resistance, points 65
26

Alloy Composition


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Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0.9 to 1.4
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
0 to 3.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
0 to 2.0
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Tungsten (W), % 0
4.0 to 6.0
Residuals, % 0 to 0.4
0