C16500 Copper vs. R05240 Alloy

C16500 copper belongs to the copper 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 (12, in this case) are not shown.

For each property being compared, the top bar is C16500 copper and the bottom bar is R05240 alloy.

UNS C16500 Cadmium-Tin Copper UNS R05240 Tantalum-Niobium Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		150

Elongation at Break, %		1.5 to 53
Elongation at Break, %		25

Poisson's Ratio		0.34
Poisson's Ratio		0.36

Shear Modulus, GPa		43
Shear Modulus, GPa		57

Tensile Strength: Ultimate (UTS), MPa		280 to 530
Tensile Strength: Ultimate (UTS), MPa		270

Tensile Strength: Yield (Proof), MPa		97 to 520
Tensile Strength: Yield (Proof), MPa		170

Thermal Properties

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

Specific Heat Capacity, J/kg-K		380
Specific Heat Capacity, J/kg-K		190

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		6.8

Otherwise Unclassified Properties

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

Embodied Water, L/kg		320
Embodied Water, L/kg		460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		7.8 to 110
Resilience: Ultimate (Unit Rupture Work), MJ/m³		59

Resilience: Unit (Modulus of Resilience), kJ/m³		41 to 1160
Resilience: Unit (Modulus of Resilience), kJ/m³		90

Stiffness to Weight: Axial, points		7.1
Stiffness to Weight: Axial, points		6.3

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		13

Strength to Weight: Axial, points		8.6 to 17
Strength to Weight: Axial, points		5.4

Strength to Weight: Bending, points		11 to 16
Strength to Weight: Bending, points		6.8

Thermal Shock Resistance, points		9.8 to 19
Thermal Shock Resistance, points		18

Alloy Composition

Cadmium (Cd), %		0.6 to 1.0
Cadmium (Cd), %		0

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

Copper (Cu), %		97.8 to 98.9
Copper (Cu), %		0

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

Iron (Fe), %		0 to 0.020
Iron (Fe), %		0 to 0.010

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

Nickel (Ni), %		0
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
Silicon (Si), %		0 to 0.0050

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

Tin (Sn), %		0.5 to 0.7
Tin (Sn), %		0

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

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

Residuals, %		0 to 0.5
Residuals, %		0