C11000 Copper vs. R05252 Alloy

C11000 copper belongs to the copper alloys classification, while R05252 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 C11000 copper and the bottom bar is R05252 alloy.

UNS C11000 (CW004A) Electrolytic Tough Pitch Copper UNS R05252 Tantalum-Tungsten Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		200

Elongation at Break, %		1.5 to 50
Elongation at Break, %		23

Poisson's Ratio		0.34
Poisson's Ratio		0.33

Shear Modulus, GPa		43
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		220 to 410
Tensile Strength: Ultimate (UTS), MPa		310

Tensile Strength: Yield (Proof), MPa		69 to 390
Tensile Strength: Yield (Proof), MPa		220

Thermal Properties

Latent Heat of Fusion, J/g		210
Latent Heat of Fusion, J/g		140

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		140

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		6.7

Otherwise Unclassified Properties

Density, g/cm³		9.0
Density, g/cm³		17

Embodied Water, L/kg		310
Embodied Water, L/kg		600

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		6.1 to 91
Resilience: Ultimate (Unit Rupture Work), MJ/m³		63

Resilience: Unit (Modulus of Resilience), kJ/m³		21 to 640
Resilience: Unit (Modulus of Resilience), kJ/m³		120

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		6.5

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		12

Strength to Weight: Axial, points		6.8 to 13
Strength to Weight: Axial, points		5.2

Strength to Weight: Bending, points		9.0 to 14
Strength to Weight: Bending, points		6.1

Thermal Shock Resistance, points		8.0 to 15
Thermal Shock Resistance, points		17

Alloy Composition

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

Copper (Cu), %		99.9 to 100
Copper (Cu), %		0

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

Iron (Fe), %		0
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), %		0 to 0.1

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

Oxygen (O), %		0
Oxygen (O), %		0 to 0.015

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

Tantalum (Ta), %		0
Tantalum (Ta), %		88.8 to 91

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

Tungsten (W), %		0
Tungsten (W), %		9.0 to 11

Residuals, %		0 to 0.1
Residuals, %		0