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AWS BCo-1 vs. Grade 30 Titanium

AWS BCo-1 belongs to the cobalt alloys classification, while grade 30 titanium belongs to the titanium alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS BCo-1 and the bottom bar is grade 30 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 78
41
Tensile Strength: Ultimate (UTS), MPa 700
390

Thermal Properties

Latent Heat of Fusion, J/g 420
420
Melting Completion (Liquidus), °C 1150
1660
Melting Onset (Solidus), °C 1120
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Expansion, µm/m-K 12
8.7

Otherwise Unclassified Properties

Density, g/cm3 8.1
4.5
Embodied Carbon, kg CO2/kg material 8.0
36
Embodied Energy, MJ/kg 110
600
Embodied Water, L/kg 430
230

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
26
Thermal Shock Resistance, points 21
30

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0.7 to 0.9
0
Carbon (C), % 0.35 to 0.45
0 to 0.080
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 46 to 54
0.2 to 0.8
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 1.0
0 to 0.3
Nickel (Ni), % 16 to 18
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.5 to 8.5
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
98 to 99.76
Tungsten (W), % 3.5 to 4.5
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.4