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C66900 Brass vs. Type 4 Niobium

C66900 brass belongs to the copper alloys classification, while Type 4 niobium belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is C66900 brass and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.1 to 26
23
Poisson's Ratio 0.32
0.4
Shear Modulus, GPa 45
38
Tensile Strength: Ultimate (UTS), MPa 460 to 770
220
Tensile Strength: Yield (Proof), MPa 330 to 760
140

Thermal Properties

Latent Heat of Fusion, J/g 190
310
Specific Heat Capacity, J/kg-K 400
270
Thermal Expansion, µm/m-K 20
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.6
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 200
44
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2450
93
Stiffness to Weight: Axial, points 8.1
6.8
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 15 to 26
7.2
Strength to Weight: Bending, points 16 to 23
9.5
Thermal Shock Resistance, points 14 to 23
21

Alloy Composition

Carbon (C), % 0
0 to 0.010
Copper (Cu), % 62.5 to 64.5
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.25
0 to 0.010
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 11.5 to 12.5
0
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 22.5 to 26
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.2
0