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Type 2 Niobium vs. Grade 702C Zirconium

Both Type 2 niobium and grade 702C zirconium are otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is Type 2 niobium and the bottom bar is grade 702C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
180
Elastic (Young's, Tensile) Modulus, GPa 110
97
Elongation at Break, % 29
13
Poisson's Ratio 0.4
0.34
Shear Modulus, GPa 38
36
Tensile Strength: Ultimate (UTS), MPa 140
430
Tensile Strength: Yield (Proof), MPa 82
310

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Specific Heat Capacity, J/kg-K 270
270
Thermal Conductivity, W/m-K 52
22
Thermal Expansion, µm/m-K 7.3
5.7

Otherwise Unclassified Properties

Density, g/cm3 8.6
6.7
Embodied Water, L/kg 160
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
52
Resilience: Unit (Modulus of Resilience), kJ/m3 32
510
Stiffness to Weight: Axial, points 6.8
8.1
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 4.6
18
Strength to Weight: Bending, points 7.1
19
Thermal Diffusivity, mm2/s 23
12
Thermal Shock Resistance, points 13
55

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.1
Hafnium (Hf), % 0 to 0.020
0 to 4.5
Hydrogen (H), % 0 to 0.0015
0 to 0.0050
Iron (Fe), % 0 to 0.010
0 to 0.3
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.0050
0
Niobium (Nb), % 99.5 to 100
0
Nitrogen (N), % 0 to 0.010
0 to 0.030
Oxygen (O), % 0 to 0.025
0 to 0.25
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.030
0
Tungsten (W), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.020
94.8 to 100