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R60704 Alloy vs. R05200 Tantalum

Both R60704 alloy and R05200 tantalum are otherwise unclassified metals. 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 R60704 alloy and the bottom bar is R05200 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 16
1.1 to 28
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 36
69
Tensile Strength: Ultimate (UTS), MPa 470
210 to 540
Tensile Strength: Yield (Proof), MPa 270
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 240
140
Specific Heat Capacity, J/kg-K 270
140
Thermal Conductivity, W/m-K 22
59
Thermal Expansion, µm/m-K 6.0
6.5

Otherwise Unclassified Properties

Density, g/cm3 6.7
17
Embodied Water, L/kg 460
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 370
50 to 420
Stiffness to Weight: Axial, points 8.1
6.2
Stiffness to Weight: Bending, points 23
11
Strength to Weight: Axial, points 20
3.6 to 9.0
Strength to Weight: Bending, points 20
4.8 to 8.8
Thermal Diffusivity, mm2/s 12
25
Thermal Shock Resistance, points 58
13 to 32

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.010
Chromium (Cr), % 0.2 to 0.4
0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0 to 0.0015
Iron (Fe), % 0.2 to 0.4
0 to 0.010
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.025
0 to 0.010
Oxygen (O), % 0 to 0.18
0 to 0.015
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
99.8 to 100
Tin (Sn), % 1.0 to 2.0
0
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zirconium (Zr), % 93 to 98.8
0