Monel K-500 vs. R05240 Alloy

Monel K-500 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 (14, in this case) are not shown.

For each property being compared, the top bar is Monel K-500 and the bottom bar is R05240 alloy.

Monel K-500 (NiCu30Al, 2.4375, N05500, NA18)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, %		25 to 36
Elongation at Break, %		25

Poisson's Ratio		0.32
Poisson's Ratio		0.36

Shear Modulus, GPa		61
Shear Modulus, GPa		57

Tensile Strength: Ultimate (UTS), MPa		640 to 1100
Tensile Strength: Ultimate (UTS), MPa		270

Tensile Strength: Yield (Proof), MPa		310 to 880
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		440
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		8.7
Density, g/cm³		14

Embodied Water, L/kg		280
Embodied Water, L/kg		460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		180 to 260
Resilience: Ultimate (Unit Rupture Work), MJ/m³		59

Resilience: Unit (Modulus of Resilience), kJ/m³		300 to 2420
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		21 to 35
Strength to Weight: Axial, points		5.4

Strength to Weight: Bending, points		19 to 27
Strength to Weight: Bending, points		6.8

Thermal Shock Resistance, points		21 to 36
Thermal Shock Resistance, points		18

Alloy Composition

Aluminum (Al), %		2.3 to 3.2
Aluminum (Al), %		0

Carbon (C), %		0 to 0.18
Carbon (C), %		0 to 0.010

Copper (Cu), %		27 to 33
Copper (Cu), %		0

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

Iron (Fe), %		0 to 2.0
Iron (Fe), %		0 to 0.010

Manganese (Mn), %		0 to 1.5
Manganese (Mn), %		0

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

Nickel (Ni), %		63 to 70.4
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 to 0.010
Sulfur (S), %		0

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

Titanium (Ti), %		0.35 to 0.85
Titanium (Ti), %		0 to 0.010

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