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Nickel 690 vs. Type 2 Niobium

Nickel 690 belongs to the nickel alloys classification, while Type 2 niobium belongs to the otherwise unclassified metals. There are 21 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 nickel 690 and the bottom bar is Type 2 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
110
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 3.4 to 34
29
Poisson's Ratio 0.28
0.4
Shear Modulus, GPa 79
38
Tensile Strength: Ultimate (UTS), MPa 640 to 990
140
Tensile Strength: Yield (Proof), MPa 250 to 760
82

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 14
52
Thermal Expansion, µm/m-K 14
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.6
Embodied Water, L/kg 290
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
35
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
32
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 21 to 33
4.6
Strength to Weight: Bending, points 20 to 27
7.1
Thermal Diffusivity, mm2/s 3.5
23
Thermal Shock Resistance, points 16 to 25
13

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.010
Chromium (Cr), % 27 to 31
0
Copper (Cu), % 0 to 0.5
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 7.0 to 11
0 to 0.010
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 58 to 66
0 to 0.0050
Niobium (Nb), % 0
99.5 to 100
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.0050
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0
0 to 0.3
Titanium (Ti), % 0
0 to 0.030
Tungsten (W), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.020