Type 1 Niobium vs. Grade 366 Molybdenum

Both Type 1 niobium and grade 366 molybdenum are otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Type 1 niobium and the bottom bar is grade 366 molybdenum.

Type 1 (Unalloyed Reactor Grade, R04200) Niobium Grade 366 Molybdenum

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		300

Elongation at Break, %		29
Elongation at Break, %		2.2

Poisson's Ratio		0.4
Poisson's Ratio		0.3

Shear Modulus, GPa		38
Shear Modulus, GPa		120

Tensile Strength: Ultimate (UTS), MPa		140
Tensile Strength: Ultimate (UTS), MPa		580

Tensile Strength: Yield (Proof), MPa		82
Tensile Strength: Yield (Proof), MPa		470

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		310

Specific Heat Capacity, J/kg-K		270
Specific Heat Capacity, J/kg-K		210

Thermal Expansion, µm/m-K		7.3
Thermal Expansion, µm/m-K		7.6

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		12

Embodied Water, L/kg		160
Embodied Water, L/kg		300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		35
Resilience: Ultimate (Unit Rupture Work), MJ/m³		12

Resilience: Unit (Modulus of Resilience), kJ/m³		32
Resilience: Unit (Modulus of Resilience), kJ/m³		370

Stiffness to Weight: Axial, points		6.8
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		4.6
Strength to Weight: Axial, points		13

Strength to Weight: Bending, points		7.1
Strength to Weight: Bending, points		13

Thermal Shock Resistance, points		13
Thermal Shock Resistance, points		18

Alloy Composition

Carbon (C), %		0 to 0.010
Carbon (C), %		0 to 0.030

Hafnium (Hf), %		0 to 0.020
Hafnium (Hf), %		0

Hydrogen (H), %		0 to 0.0015
Hydrogen (H), %		0

Iron (Fe), %		0 to 0.0050
Iron (Fe), %		0 to 0.010

Molybdenum (Mo), %		0 to 0.010
Molybdenum (Mo), %		66.9 to 73

Nickel (Ni), %		0 to 0.0050
Nickel (Ni), %		0 to 0.0020

Niobium (Nb), %		99.7 to 100
Niobium (Nb), %		0

Nitrogen (N), %		0 to 0.010
Nitrogen (N), %		0 to 0.0020

Oxygen (O), %		0 to 0.015
Oxygen (O), %		0 to 0.0025

Silicon (Si), %		0 to 0.0050
Silicon (Si), %		0 to 0.010

Tantalum (Ta), %		0 to 0.1
Tantalum (Ta), %		0

Titanium (Ti), %		0 to 0.020
Titanium (Ti), %		0

Tungsten (W), %		0 to 0.030
Tungsten (W), %		27 to 33

Zirconium (Zr), %		0 to 0.020
Zirconium (Zr), %		0