R05400 Tantalum vs. EN 1.7076 Steel
R05400 tantalum belongs to the otherwise unclassified metals classification, while EN 1.7076 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, 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 R05400 tantalum and the bottom bar is EN 1.7076 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Poisson's Ratio | 0.34 | |
0.29 |
Shear Modulus, GPa | 69 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 210 to 540 | |
470 to 1700 |
Thermal Properties
Latent Heat of Fusion, J/g | 140 | |
250 |
Specific Heat Capacity, J/kg-K | 140 | |
470 |
Thermal Conductivity, W/m-K | 59 | |
45 |
Thermal Expansion, µm/m-K | 6.5 | |
13 |
Otherwise Unclassified Properties
Density, g/cm3 | 17 | |
7.8 |
Embodied Water, L/kg | 650 | |
51 |
Common Calculations
Stiffness to Weight: Axial, points | 6.2 | |
13 |
Stiffness to Weight: Bending, points | 11 | |
24 |
Strength to Weight: Axial, points | 3.6 to 9.0 | |
17 to 60 |
Strength to Weight: Bending, points | 4.8 to 8.8 | |
17 to 40 |
Thermal Diffusivity, mm2/s | 25 | |
12 |
Thermal Shock Resistance, points | 13 to 32 | |
14 to 50 |
Alloy Composition
Boron (B), % | 0 | |
0.00080 to 0.0050 |
Carbon (C), % | 0 to 0.010 | |
0.3 to 0.34 |
Chromium (Cr), % | 0 | |
0.9 to 1.2 |
Copper (Cu), % | 0 | |
0 to 0.25 |
Hydrogen (H), % | 0 to 0.0015 | |
0 |
Iron (Fe), % | 0 to 0.010 | |
97 to 98.2 |
Manganese (Mn), % | 0 | |
0.6 to 0.9 |
Molybdenum (Mo), % | 0 to 0.020 | |
0 |
Nickel (Ni), % | 0 to 0.010 | |
0 |
Niobium (Nb), % | 0 to 0.1 | |
0 |
Nitrogen (N), % | 0 to 0.010 | |
0 |
Oxygen (O), % | 0 to 0.030 | |
0 |
Phosphorus (P), % | 0 | |
0 to 0.025 |
Silicon (Si), % | 0 to 0.0050 | |
0 to 0.3 |
Sulfur (S), % | 0 | |
0 to 0.025 |
Tantalum (Ta), % | 99.7 to 100 | |
0 |
Titanium (Ti), % | 0 to 0.010 | |
0 |
Tungsten (W), % | 0 to 0.050 | |
0 |