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R05200 Tantalum vs. AWS BNi-4

R05200 tantalum belongs to the otherwise unclassified metals classification, while AWS BNi-4 belongs to the nickel alloys. There are 14 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is R05200 tantalum and the bottom bar is AWS BNi-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 69
67
Tensile Strength: Ultimate (UTS), MPa 210 to 540
430

Thermal Properties

Latent Heat of Fusion, J/g 140
340
Specific Heat Capacity, J/kg-K 140
470
Thermal Expansion, µm/m-K 6.5
11

Otherwise Unclassified Properties

Density, g/cm3 17
8.5
Embodied Water, L/kg 650
220

Common Calculations

Stiffness to Weight: Axial, points 6.2
12
Stiffness to Weight: Bending, points 11
22
Strength to Weight: Axial, points 3.6 to 9.0
14
Strength to Weight: Bending, points 4.8 to 8.8
15
Thermal Shock Resistance, points 13 to 32
16

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.5 to 2.2
Carbon (C), % 0 to 0.010
0 to 0.060
Cobalt (Co), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 1.5
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
91.4 to 95.5
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
3.0 to 4.0
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
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5