R05200 Tantalum vs. AWS BCo-1
R05200 tantalum belongs to the otherwise unclassified metals classification, while AWS BCo-1 belongs to the cobalt alloys. There are 14 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is R05200 tantalum and the bottom bar is AWS BCo-1.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Poisson's Ratio | 0.34 | |
0.3 |
Shear Modulus, GPa | 69 | |
78 |
Tensile Strength: Ultimate (UTS), MPa | 210 to 540 | |
700 |
Thermal Properties
Latent Heat of Fusion, J/g | 140 | |
420 |
Specific Heat Capacity, J/kg-K | 140 | |
480 |
Thermal Expansion, µm/m-K | 6.5 | |
12 |
Otherwise Unclassified Properties
Density, g/cm3 | 17 | |
8.1 |
Embodied Water, L/kg | 650 | |
430 |
Common Calculations
Stiffness to Weight: Axial, points | 6.2 | |
14 |
Stiffness to Weight: Bending, points | 11 | |
24 |
Strength to Weight: Axial, points | 3.6 to 9.0 | |
24 |
Strength to Weight: Bending, points | 4.8 to 8.8 | |
22 |
Thermal Shock Resistance, points | 13 to 32 | |
21 |
Alloy Composition
Aluminum (Al), % | 0 | |
0 to 0.050 |
Boron (B), % | 0 | |
0.7 to 0.9 |
Carbon (C), % | 0 to 0.010 | |
0.35 to 0.45 |
Chromium (Cr), % | 0 | |
18 to 20 |
Cobalt (Co), % | 0 | |
46 to 54 |
Hydrogen (H), % | 0 to 0.0015 | |
0 |
Iron (Fe), % | 0 to 0.010 | |
0 to 1.0 |
Molybdenum (Mo), % | 0 to 0.020 | |
0 |
Nickel (Ni), % | 0 to 0.010 | |
16 to 18 |
Niobium (Nb), % | 0 to 0.1 | |
0 |
Nitrogen (N), % | 0 to 0.010 | |
0 |
Oxygen (O), % | 0 to 0.015 | |
0 |
Phosphorus (P), % | 0 | |
0 to 0.020 |
Selenium (Se), % | 0 | |
0 to 0.0050 |
Silicon (Si), % | 0 to 0.0050 | |
7.5 to 8.5 |
Sulfur (S), % | 0 | |
0 to 0.020 |
Tantalum (Ta), % | 99.8 to 100 | |
0 |
Titanium (Ti), % | 0 to 0.010 | |
0 to 0.050 |
Tungsten (W), % | 0 to 0.050 | |
3.5 to 4.5 |
Zirconium (Zr), % | 0 | |
0 to 0.050 |
Residuals, % | 0 | |
0 to 0.5 |