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Type 4 Niobium vs. Nickel 689

Type 4 niobium belongs to the otherwise unclassified metals classification, while nickel 689 belongs to the nickel alloys. There are 19 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 4 niobium and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
350
Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 23
23
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 38
80
Tensile Strength: Ultimate (UTS), MPa 220
1250
Tensile Strength: Yield (Proof), MPa 140
690

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Specific Heat Capacity, J/kg-K 270
450
Thermal Expansion, µm/m-K 7.3
12

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.5
Embodied Water, L/kg 160
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
240
Resilience: Unit (Modulus of Resilience), kJ/m3 93
1170
Stiffness to Weight: Axial, points 6.8
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 7.2
41
Strength to Weight: Bending, points 9.5
30
Thermal Shock Resistance, points 21
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.010
0.1 to 0.2
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
9.0 to 11
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 5.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0 to 0.050
9.0 to 10.5
Nickel (Ni), % 0 to 0.0050
48.3 to 60.9
Niobium (Nb), % 98.1 to 99.2
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.025
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.0050
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 0 to 0.020
2.3 to 2.8
Tungsten (W), % 0 to 0.050
0
Zirconium (Zr), % 0.8 to 1.2
0