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Nickel 725 vs. R05200 Tantalum

Nickel 725 belongs to the nickel alloys classification, while R05200 tantalum belongs to the otherwise unclassified metals. 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 nickel 725 and the bottom bar is R05200 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
1.1 to 28
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 78
69
Tensile Strength: Ultimate (UTS), MPa 860
210 to 540
Tensile Strength: Yield (Proof), MPa 350
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 320
140
Specific Heat Capacity, J/kg-K 440
140
Thermal Expansion, µm/m-K 13
6.5

Otherwise Unclassified Properties

Density, g/cm3 8.5
17
Embodied Water, L/kg 270
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 300
50 to 420
Stiffness to Weight: Axial, points 13
6.2
Stiffness to Weight: Bending, points 23
11
Strength to Weight: Axial, points 28
3.6 to 9.0
Strength to Weight: Bending, points 24
4.8 to 8.8
Thermal Shock Resistance, points 23
13 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 19 to 22.5
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 2.3 to 15.3
0 to 0.010
Manganese (Mn), % 0 to 0.35
0
Molybdenum (Mo), % 7.0 to 9.5
0 to 0.020
Nickel (Ni), % 55 to 59
0 to 0.010
Niobium (Nb), % 2.8 to 4.0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0 to 0.010
0
Tantalum (Ta), % 0
99.8 to 100
Titanium (Ti), % 1.0 to 1.7
0 to 0.010
Tungsten (W), % 0
0 to 0.050