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CC755S Brass vs. R05400 Tantalum

CC755S brass belongs to the copper alloys classification, while R05400 tantalum belongs to the otherwise unclassified metals. 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 CC755S brass and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 9.5
1.1 to 28
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
69
Tensile Strength: Ultimate (UTS), MPa 390
210 to 540
Tensile Strength: Yield (Proof), MPa 250
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 170
140
Specific Heat Capacity, J/kg-K 390
140
Thermal Conductivity, W/m-K 120
59
Thermal Expansion, µm/m-K 21
6.5

Otherwise Unclassified Properties

Density, g/cm3 8.1
17
Embodied Water, L/kg 330
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 290
50 to 420
Stiffness to Weight: Axial, points 7.1
6.2
Stiffness to Weight: Bending, points 19
11
Strength to Weight: Axial, points 14
3.6 to 9.0
Strength to Weight: Bending, points 15
4.8 to 8.8
Thermal Diffusivity, mm2/s 38
25
Thermal Shock Resistance, points 13
13 to 32

Alloy Composition

Aluminum (Al), % 0.4 to 0.7
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 59.5 to 61
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0.050 to 0.2
0 to 0.010
Lead (Pb), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.050
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0 to 0.2
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.030
Silicon (Si), % 0 to 0.050
0 to 0.0050
Tantalum (Ta), % 0
99.7 to 100
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 35.8 to 38.9
0