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C69430 Brass vs. Type 4 Niobium

C69430 brass belongs to the copper alloys classification, while Type 4 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 C69430 brass and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
23
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 42
38
Tensile Strength: Ultimate (UTS), MPa 570
220
Tensile Strength: Yield (Proof), MPa 280
140

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Specific Heat Capacity, J/kg-K 410
270
Thermal Conductivity, W/m-K 26
42
Thermal Expansion, µm/m-K 18
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.6
Embodied Water, L/kg 300
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
44
Resilience: Unit (Modulus of Resilience), kJ/m3 340
93
Stiffness to Weight: Axial, points 7.4
6.8
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 19
7.2
Strength to Weight: Bending, points 18
9.5
Thermal Diffusivity, mm2/s 7.7
18
Thermal Shock Resistance, points 20
21

Alloy Composition

Arsenic (As), % 0.030 to 0.060
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 80 to 83
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.2
0 to 0.010
Lead (Pb), % 0 to 0.3
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), % 3.5 to 4.5
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), % 11.4 to 16.5
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.5
0