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Type 1 Niobium vs. C69300 Brass

Type 1 niobium belongs to the otherwise unclassified metals classification, while C69300 brass belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is Type 1 niobium and the bottom bar is C69300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 29
8.5 to 15
Poisson's Ratio 0.4
0.32
Shear Modulus, GPa 38
41
Tensile Strength: Ultimate (UTS), MPa 140
550 to 630
Tensile Strength: Yield (Proof), MPa 82
300 to 390

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Specific Heat Capacity, J/kg-K 270
400
Thermal Conductivity, W/m-K 52
38
Thermal Expansion, µm/m-K 7.3
19

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
47 to 70
Resilience: Unit (Modulus of Resilience), kJ/m3 32
400 to 700
Stiffness to Weight: Axial, points 6.8
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 4.6
19 to 21
Strength to Weight: Bending, points 7.1
18 to 20
Thermal Diffusivity, mm2/s 23
12
Thermal Shock Resistance, points 13
19 to 22

Alloy Composition

Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
73 to 77
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0 to 0.010
0
Nickel (Ni), % 0 to 0.0050
0 to 0.1
Niobium (Nb), % 99.7 to 100
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Phosphorus (P), % 0
0.040 to 0.15
Silicon (Si), % 0 to 0.0050
2.7 to 3.4
Tantalum (Ta), % 0 to 0.1
0
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.030
0
Zinc (Zn), % 0
18.4 to 24.3
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.5