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C87900 Brass vs. R05400 Tantalum

C87900 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 C87900 brass and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 25
1.1 to 28
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
69
Tensile Strength: Ultimate (UTS), MPa 480
210 to 540
Tensile Strength: Yield (Proof), MPa 240
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 190
140
Specific Heat Capacity, J/kg-K 390
140
Thermal Conductivity, W/m-K 120
59
Thermal Expansion, µm/m-K 20
6.5

Otherwise Unclassified Properties

Density, g/cm3 8.1
17
Embodied Water, L/kg 320
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 270
50 to 420
Stiffness to Weight: Axial, points 7.3
6.2
Stiffness to Weight: Bending, points 20
11
Strength to Weight: Axial, points 17
3.6 to 9.0
Strength to Weight: Bending, points 17
4.8 to 8.8
Thermal Diffusivity, mm2/s 37
25
Thermal Shock Resistance, points 16
13 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 63 to 69.2
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.4
0 to 0.010
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.15
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0 to 0.5
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
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0 to 0.0050
Sulfur (S), % 0 to 0.050
0
Tantalum (Ta), % 0
99.7 to 100
Tin (Sn), % 0 to 0.25
0
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 30 to 36
0