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Type 2 Niobium vs. Grade 704C Zirconium

Both Type 2 niobium and grade 704C 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 704C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
210
Elastic (Young's, Tensile) Modulus, GPa 110
97
Elongation at Break, % 29
11
Poisson's Ratio 0.4
0.34
Shear Modulus, GPa 38
36
Tensile Strength: Ultimate (UTS), MPa 140
470
Tensile Strength: Yield (Proof), MPa 82
310

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Specific Heat Capacity, J/kg-K 270
270
Thermal Conductivity, W/m-K 52
21
Thermal Expansion, µm/m-K 7.3
5.9

Otherwise Unclassified Properties

Density, g/cm3 8.6
6.7
Embodied Water, L/kg 160
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
48
Resilience: Unit (Modulus of Resilience), kJ/m3 32
490
Stiffness to Weight: Axial, points 6.8
8.1
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 4.6
20
Strength to Weight: Bending, points 7.1
20
Thermal Diffusivity, mm2/s 23
12
Thermal Shock Resistance, points 13
58

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 0.3
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 0 to 0.3
0
Tin (Sn), % 0
1.0 to 2.0
Titanium (Ti), % 0 to 0.030
0
Tungsten (W), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.020
92.9 to 99