R05240 Alloy vs. CR017A Copper

R05240 alloy belongs to the otherwise unclassified metals classification, while CR017A copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R05240 alloy and the bottom bar is CR017A copper.

UNS R05240 Tantalum-Niobium Alloy EN CR017A (CuAg0.04(OF)) Silver-Bearing Oxygen-Free Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		150
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		25
Elongation at Break, %		15

Poisson's Ratio		0.36
Poisson's Ratio		0.34

Shear Modulus, GPa		57
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		270
Tensile Strength: Ultimate (UTS), MPa		230

Tensile Strength: Yield (Proof), MPa		170
Tensile Strength: Yield (Proof), MPa		140

Thermal Properties

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

Specific Heat Capacity, J/kg-K		190
Specific Heat Capacity, J/kg-K		390

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

Otherwise Unclassified Properties

Density, g/cm³		14
Density, g/cm³		9.0

Embodied Water, L/kg		460
Embodied Water, L/kg		340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		59
Resilience: Ultimate (Unit Rupture Work), MJ/m³		31

Resilience: Unit (Modulus of Resilience), kJ/m³		90
Resilience: Unit (Modulus of Resilience), kJ/m³		83

Stiffness to Weight: Axial, points		6.3
Stiffness to Weight: Axial, points		7.2

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

Strength to Weight: Axial, points		5.4
Strength to Weight: Axial, points		7.1

Strength to Weight: Bending, points		6.8
Strength to Weight: Bending, points		9.3

Thermal Shock Resistance, points		18
Thermal Shock Resistance, points		8.1

Alloy Composition

Bismuth (Bi), %		0
Bismuth (Bi), %		0 to 0.00050

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

Copper (Cu), %		0
Copper (Cu), %		99.944 to 99.97

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

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

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

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

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

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

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

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

Silver (Ag), %		0
Silver (Ag), %		0.030 to 0.050

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

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

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