Grade 363 Molybdenum vs. R05240 Alloy

Both grade 363 molybdenum and R05240 alloy are otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 363 molybdenum and the bottom bar is R05240 alloy.

Grade 363 Molybdenum UNS R05240 Tantalum-Niobium Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		310
Elastic (Young's, Tensile) Modulus, GPa		150

Elongation at Break, %		6.2 to 11
Elongation at Break, %		25

Poisson's Ratio		0.31
Poisson's Ratio		0.36

Shear Modulus, GPa		120
Shear Modulus, GPa		57

Tensile Strength: Ultimate (UTS), MPa		580 to 720
Tensile Strength: Ultimate (UTS), MPa		270

Tensile Strength: Yield (Proof), MPa		350 to 620
Tensile Strength: Yield (Proof), MPa		170

Thermal Properties

Latent Heat of Fusion, J/g		370
Latent Heat of Fusion, J/g		210

Specific Heat Capacity, J/kg-K		250
Specific Heat Capacity, J/kg-K		190

Thermal Expansion, µm/m-K		7.0
Thermal Expansion, µm/m-K		6.8

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		14

Embodied Water, L/kg		360
Embodied Water, L/kg		460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		43 to 57
Resilience: Ultimate (Unit Rupture Work), MJ/m³		59

Resilience: Unit (Modulus of Resilience), kJ/m³		200 to 630
Resilience: Unit (Modulus of Resilience), kJ/m³		90

Stiffness to Weight: Axial, points		17
Stiffness to Weight: Axial, points		6.3

Stiffness to Weight: Bending, points		22
Stiffness to Weight: Bending, points		13

Strength to Weight: Axial, points		16 to 20
Strength to Weight: Axial, points		5.4

Strength to Weight: Bending, points		15 to 17
Strength to Weight: Bending, points		6.8

Thermal Shock Resistance, points		19 to 24
Thermal Shock Resistance, points		18

Alloy Composition

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

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

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

Molybdenum (Mo), %		99.3 to 99.5
Molybdenum (Mo), %		0 to 0.020

Nickel (Ni), %		0 to 0.0020
Nickel (Ni), %		0 to 0.010

Niobium (Nb), %		0
Niobium (Nb), %		35 to 42

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

Oxygen (O), %		0 to 0.0030
Oxygen (O), %		0 to 0.020

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

Tantalum (Ta), %		0
Tantalum (Ta), %		57.9 to 65

Titanium (Ti), %		0.4 to 0.55
Titanium (Ti), %		0 to 0.010

Tungsten (W), %		0
Tungsten (W), %		0 to 0.050

Zirconium (Zr), %		0.060 to 0.12
Zirconium (Zr), %		0