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R05400 Tantalum vs. Nickel 686

R05400 tantalum belongs to the otherwise unclassified metals classification, while nickel 686 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R05400 tantalum and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 1.1 to 28
51
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 69
77
Tensile Strength: Ultimate (UTS), MPa 210 to 540
780
Tensile Strength: Yield (Proof), MPa 140 to 390
350

Thermal Properties

Latent Heat of Fusion, J/g 140
320
Specific Heat Capacity, J/kg-K 140
420
Thermal Conductivity, W/m-K 59
9.8
Thermal Expansion, µm/m-K 6.5
12

Otherwise Unclassified Properties

Density, g/cm3 17
9.0
Embodied Water, L/kg 650
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
320
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
280
Stiffness to Weight: Axial, points 6.2
14
Stiffness to Weight: Bending, points 11
22
Strength to Weight: Axial, points 3.6 to 9.0
24
Strength to Weight: Bending, points 4.8 to 8.8
21
Thermal Diffusivity, mm2/s 25
2.6
Thermal Shock Resistance, points 13 to 32
21

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.010
Chromium (Cr), % 0
19 to 23
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 5.0
Manganese (Mn), % 0
0 to 0.75
Molybdenum (Mo), % 0 to 0.020
15 to 17
Nickel (Ni), % 0 to 0.010
49.5 to 63
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 0.040
Silicon (Si), % 0 to 0.0050
0 to 0.080
Sulfur (S), % 0
0 to 0.020
Tantalum (Ta), % 99.7 to 100
0
Titanium (Ti), % 0 to 0.010
0.020 to 0.25
Tungsten (W), % 0 to 0.050
3.0 to 4.4