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Grade 36 Titanium vs. AWS BCo-1

Grade 36 titanium belongs to the titanium alloys classification, while AWS BCo-1 belongs to the cobalt alloys. There are 18 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 36 titanium and the bottom bar is AWS BCo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.36
0.3
Shear Modulus, GPa 39
78
Tensile Strength: Ultimate (UTS), MPa 530
700

Thermal Properties

Latent Heat of Fusion, J/g 370
420
Melting Completion (Liquidus), °C 2020
1150
Melting Onset (Solidus), °C 1950
1120
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 8.1
12

Otherwise Unclassified Properties

Density, g/cm3 6.3
8.1
Embodied Carbon, kg CO2/kg material 58
8.0
Embodied Energy, MJ/kg 920
110
Embodied Water, L/kg 130
430

Common Calculations

Stiffness to Weight: Axial, points 9.3
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
24
Strength to Weight: Bending, points 23
22
Thermal Shock Resistance, points 45
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0.7 to 0.9
Carbon (C), % 0 to 0.030
0.35 to 0.45
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
46 to 54
Hydrogen (H), % 0 to 0.0035
0
Iron (Fe), % 0 to 0.030
0 to 1.0
Nickel (Ni), % 0
16 to 18
Niobium (Nb), % 42 to 47
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.16
0
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
7.5 to 8.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 52.3 to 58
0 to 0.050
Tungsten (W), % 0
3.5 to 4.5
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5