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Titanium 6-7 vs. R30075 Cobalt

Titanium 6-7 belongs to the titanium alloys classification, while R30075 cobalt belongs to the cobalt alloys. There are 24 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 titanium 6-7 and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210 to 250
Elongation at Break, % 11
12
Fatigue Strength, MPa 530
250 to 840
Poisson's Ratio 0.33
0.29
Reduction in Area, % 29
20
Shear Modulus, GPa 45
82 to 98
Tensile Strength: Ultimate (UTS), MPa 1020
780 to 1280
Tensile Strength: Yield (Proof), MPa 900
480 to 840

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Melting Completion (Liquidus), °C 1700
1360
Melting Onset (Solidus), °C 1650
1290
Specific Heat Capacity, J/kg-K 520
450
Thermal Expansion, µm/m-K 9.3
12

Otherwise Unclassified Properties

Density, g/cm3 5.1
8.4
Embodied Carbon, kg CO2/kg material 34
8.1
Embodied Energy, MJ/kg 540
110
Embodied Water, L/kg 190
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
84 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
560 to 1410
Stiffness to Weight: Axial, points 13
14 to 17
Stiffness to Weight: Bending, points 32
24 to 25
Strength to Weight: Axial, points 56
26 to 42
Strength to Weight: Bending, points 44
22 to 31
Thermal Shock Resistance, points 66
21 to 29

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
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 0.0090
0
Iron (Fe), % 0 to 0.25
0 to 0.75
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 6.5 to 7.5
5.0 to 7.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0 to 0.25
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0 to 0.1
Tungsten (W), % 0
0 to 0.2