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Nickel 689 vs. Type 4 Niobium

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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