MakeItFrom.com
Menu (ESC)

Grade 21 Titanium vs. R30016 Cobalt

Grade 21 titanium belongs to the titanium alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 21 titanium and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
220
Elongation at Break, % 9.0 to 17
8.4
Fatigue Strength, MPa 550 to 660
290
Poisson's Ratio 0.32
0.28
Reduction in Area, % 22
8.0
Shear Modulus, GPa 51
85
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
1010
Tensile Strength: Yield (Proof), MPa 870 to 1170
580

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Melting Completion (Liquidus), °C 1740
1360
Melting Onset (Solidus), °C 1690
1270
Specific Heat Capacity, J/kg-K 500
450
Thermal Conductivity, W/m-K 7.5
15
Thermal Expansion, µm/m-K 7.1
14

Otherwise Unclassified Properties

Density, g/cm3 5.4
8.5
Embodied Carbon, kg CO2/kg material 32
7.7
Embodied Energy, MJ/kg 490
110
Embodied Water, L/kg 180
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 180
72
Resilience: Unit (Modulus of Resilience), kJ/m3 2760 to 5010
770
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 32
24
Strength to Weight: Axial, points 46 to 69
33
Strength to Weight: Bending, points 38 to 50
26
Thermal Diffusivity, mm2/s 2.8
3.9
Thermal Shock Resistance, points 66 to 100
24

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.050
0.9 to 1.4
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 3.0
Manganese (Mn), % 0
0.5 to 2.0
Molybdenum (Mo), % 14 to 16
0 to 1.5
Nickel (Ni), % 0
0 to 3.0
Niobium (Nb), % 2.2 to 3.2
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.17
0
Silicon (Si), % 0.15 to 0.25
0.2 to 2.0
Titanium (Ti), % 76 to 81.2
0
Tungsten (W), % 0
3.5 to 5.5
Residuals, % 0 to 0.4
0