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R05400 Tantalum vs. CC764S Brass

R05400 tantalum belongs to the otherwise unclassified metals classification, while CC764S brass belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, 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 CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 1.1 to 28
15
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 69
41
Tensile Strength: Ultimate (UTS), MPa 210 to 540
680
Tensile Strength: Yield (Proof), MPa 140 to 390
290

Thermal Properties

Latent Heat of Fusion, J/g 140
180
Specific Heat Capacity, J/kg-K 140
400
Thermal Conductivity, W/m-K 59
94
Thermal Expansion, µm/m-K 6.5
20

Otherwise Unclassified Properties

Density, g/cm3 17
7.9
Embodied Water, L/kg 650
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
80
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
390
Stiffness to Weight: Axial, points 6.2
7.6
Stiffness to Weight: Bending, points 11
20
Strength to Weight: Axial, points 3.6 to 9.0
24
Strength to Weight: Bending, points 4.8 to 8.8
22
Thermal Diffusivity, mm2/s 25
30
Thermal Shock Resistance, points 13 to 32
22

Alloy Composition

Aluminum (Al), % 0
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
52 to 66
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0
0.3 to 4.0
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0 to 3.0
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 0.030
Silicon (Si), % 0 to 0.0050
0 to 0.1
Tantalum (Ta), % 99.7 to 100
0
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
20.7 to 50.2