C71000 Copper-nickel vs. R05252 Alloy

C71000 copper-nickel belongs to the copper alloys classification, while R05252 alloy belongs to the otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is C71000 copper-nickel and the bottom bar is R05252 alloy.

UNS C71000 Copper-Nickel UNS R05252 Tantalum-Tungsten Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		130
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.33
Poisson's Ratio		0.33

Shear Modulus, GPa		49
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		320 to 560
Tensile Strength: Ultimate (UTS), MPa		310

Thermal Properties

Latent Heat of Fusion, J/g		230
Latent Heat of Fusion, J/g		140

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		140

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		6.7

Otherwise Unclassified Properties

Density, g/cm³		8.9
Density, g/cm³		17

Embodied Water, L/kg		290
Embodied Water, L/kg		600

Common Calculations

Stiffness to Weight: Axial, points		8.2
Stiffness to Weight: Axial, points		6.5

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		12

Strength to Weight: Axial, points		10 to 18
Strength to Weight: Axial, points		5.2

Strength to Weight: Bending, points		12 to 17
Strength to Weight: Bending, points		6.1

Thermal Shock Resistance, points		12 to 20
Thermal Shock Resistance, points		17

Alloy Composition

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

Copper (Cu), %		73.5 to 80.5
Copper (Cu), %		0

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

Iron (Fe), %		0.5 to 1.0
Iron (Fe), %		0 to 0.010

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0

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

Nickel (Ni), %		19 to 23
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

Zinc (Zn), %		0 to 1.0
Zinc (Zn), %		0

Residuals, %		0 to 0.5
Residuals, %		0