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Type 4 Niobium vs. C85400 Brass

Type 4 niobium belongs to the otherwise unclassified metals classification, while C85400 brass belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is Type 4 niobium and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
55
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 23
23
Poisson's Ratio 0.4
0.32
Shear Modulus, GPa 38
40
Tensile Strength: Ultimate (UTS), MPa 220
220
Tensile Strength: Yield (Proof), MPa 140
85

Thermal Properties

Latent Heat of Fusion, J/g 310
180
Specific Heat Capacity, J/kg-K 270
380
Thermal Conductivity, W/m-K 42
89
Thermal Expansion, µm/m-K 7.3
20

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.3
Embodied Water, L/kg 160
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
40
Resilience: Unit (Modulus of Resilience), kJ/m3 93
35
Stiffness to Weight: Axial, points 6.8
7.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.2
7.5
Strength to Weight: Bending, points 9.5
9.9
Thermal Diffusivity, mm2/s 18
28
Thermal Shock Resistance, points 21
7.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
65 to 70
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.7
Lead (Pb), % 0
1.5 to 3.8
Molybdenum (Mo), % 0 to 0.050
0
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Niobium (Nb), % 98.1 to 99.2
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.025
0
Silicon (Si), % 0 to 0.0050
0 to 0.050
Tantalum (Ta), % 0 to 0.5
0
Tin (Sn), % 0
0.5 to 1.5
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
24 to 32
Zirconium (Zr), % 0.8 to 1.2
0
Residuals, % 0
0 to 1.1