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C87900 Brass vs. Type 2 Niobium

C87900 brass belongs to the copper alloys classification, while Type 2 niobium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C87900 brass and the bottom bar is Type 2 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
29
Poisson's Ratio 0.31
0.4
Shear Modulus, GPa 41
38
Tensile Strength: Ultimate (UTS), MPa 480
140
Tensile Strength: Yield (Proof), MPa 240
82

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Specific Heat Capacity, J/kg-K 390
270
Thermal Conductivity, W/m-K 120
52
Thermal Expansion, µm/m-K 20
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.6
Embodied Water, L/kg 320
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
35
Resilience: Unit (Modulus of Resilience), kJ/m3 270
32
Stiffness to Weight: Axial, points 7.3
6.8
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 17
4.6
Strength to Weight: Bending, points 17
7.1
Thermal Diffusivity, mm2/s 37
23
Thermal Shock Resistance, points 16
13

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
Hafnium (Hf), % 0
0 to 0.020
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 0.0050
Niobium (Nb), % 0
99.5 to 100
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
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
0 to 0.3
Tin (Sn), % 0 to 0.25
0
Titanium (Ti), % 0
0 to 0.030
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 30 to 36
0
Zirconium (Zr), % 0
0 to 0.020