Monel R-405 vs. R05240 Alloy

Monel R-405 belongs to the nickel alloys classification, while R05240 alloy belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is Monel R-405 and the bottom bar is R05240 alloy.

Monel R-405 (N04405)UNS R05240 Tantalum-Niobium Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		160
Elastic (Young's, Tensile) Modulus, GPa		150

Elongation at Break, %		9.1 to 39
Elongation at Break, %		25

Poisson's Ratio		0.32
Poisson's Ratio		0.36

Shear Modulus, GPa		62
Shear Modulus, GPa		57

Tensile Strength: Ultimate (UTS), MPa		540 to 630
Tensile Strength: Ultimate (UTS), MPa		270

Tensile Strength: Yield (Proof), MPa		190 to 350
Tensile Strength: Yield (Proof), MPa		170

Thermal Properties

Latent Heat of Fusion, J/g		270
Latent Heat of Fusion, J/g		210

Specific Heat Capacity, J/kg-K		430
Specific Heat Capacity, J/kg-K		190

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		6.8

Otherwise Unclassified Properties

Density, g/cm³		8.9
Density, g/cm³		14

Embodied Water, L/kg		250
Embodied Water, L/kg		460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		49 to 170
Resilience: Ultimate (Unit Rupture Work), MJ/m³		59

Resilience: Unit (Modulus of Resilience), kJ/m³		120 to 370
Resilience: Unit (Modulus of Resilience), kJ/m³		90

Stiffness to Weight: Axial, points		10
Stiffness to Weight: Axial, points		6.3

Stiffness to Weight: Bending, points		21
Stiffness to Weight: Bending, points		13

Strength to Weight: Axial, points		17 to 20
Strength to Weight: Axial, points		5.4

Strength to Weight: Bending, points		17 to 18
Strength to Weight: Bending, points		6.8

Thermal Shock Resistance, points		17 to 20
Thermal Shock Resistance, points		18

Alloy Composition

Carbon (C), %		0 to 0.3
Carbon (C), %		0 to 0.010

Copper (Cu), %		28 to 34
Copper (Cu), %		0

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

Iron (Fe), %		0 to 2.5
Iron (Fe), %		0 to 0.010

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		0

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

Nickel (Ni), %		63 to 72
Nickel (Ni), %		0 to 0.010

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

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

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

Silicon (Si), %		0 to 0.5
Silicon (Si), %		0 to 0.0050

Sulfur (S), %		0.025 to 0.060
Sulfur (S), %		0

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

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

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