C55180 Copper vs. C70620 Copper-nickel

Both C55180 copper and C70620 copper-nickel are copper alloys. They have 88% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C55180 copper and the bottom bar is C70620 copper-nickel.

UNS C55180 (BCuP-1) Filler Metal UNS C70620 Copper-Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.34
Poisson's Ratio		0.34

Shear Modulus, GPa		41
Shear Modulus, GPa		46

Tensile Strength: Ultimate (UTS), MPa		200
Tensile Strength: Ultimate (UTS), MPa		300 to 570

Thermal Properties

Latent Heat of Fusion, J/g		200
Latent Heat of Fusion, J/g		220

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		220

Melting Completion (Liquidus), °C		920
Melting Completion (Liquidus), °C		1120

Melting Onset (Solidus), °C		710
Melting Onset (Solidus), °C		1060

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		390

Thermal Conductivity, W/m-K		200
Thermal Conductivity, W/m-K		49

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

Otherwise Unclassified Properties

Base Metal Price, % relative		29
Base Metal Price, % relative		33

Density, g/cm³		8.6
Density, g/cm³		8.9

Embodied Carbon, kg CO₂/kg material		2.5
Embodied Carbon, kg CO₂/kg material		3.4

Embodied Energy, MJ/kg		39
Embodied Energy, MJ/kg		51

Embodied Water, L/kg		290
Embodied Water, L/kg		300

Common Calculations

Stiffness to Weight: Axial, points		7.1
Stiffness to Weight: Axial, points		7.7

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		6.4
Strength to Weight: Axial, points		9.3 to 18

Strength to Weight: Bending, points		8.8
Strength to Weight: Bending, points		11 to 17

Thermal Diffusivity, mm²/s		56
Thermal Diffusivity, mm²/s		14

Thermal Shock Resistance, points		7.9
Thermal Shock Resistance, points		10 to 20

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0 to 0.050

Copper (Cu), %		94.7 to 95.2
Copper (Cu), %		86.5 to 90

Iron (Fe), %		0
Iron (Fe), %		1.0 to 1.8

Lead (Pb), %		0
Lead (Pb), %		0 to 0.020

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

Nickel (Ni), %		0
Nickel (Ni), %		9.0 to 11

Phosphorus (P), %		4.8 to 5.2
Phosphorus (P), %		0 to 0.2

Sulfur (S), %		0
Sulfur (S), %		0 to 0.020

Zinc (Zn), %		0
Zinc (Zn), %		0 to 0.5

Residuals, %		0
Residuals, %		0 to 0.5