C55281 Copper vs. C97800 Nickel Silver

Both C55281 copper and C97800 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% of their average alloy composition in common. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C55281 copper and the bottom bar is C97800 nickel silver.

UNS C55281 (BCuP-3) Filler Metal UNS C97800 Leaded Nickel Silver

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		130

Poisson's Ratio		0.34
Poisson's Ratio		0.33

Shear Modulus, GPa		40
Shear Modulus, GPa		48

Tensile Strength: Ultimate (UTS), MPa		190
Tensile Strength: Ultimate (UTS), MPa		370

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		220

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		230

Melting Completion (Liquidus), °C		810
Melting Completion (Liquidus), °C		1180

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		1140

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

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

Density, g/cm³		8.7
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		7.0
Embodied Carbon, kg CO₂/kg material		5.1

Embodied Energy, MJ/kg		110
Embodied Energy, MJ/kg		76

Common Calculations

Stiffness to Weight: Axial, points		6.9
Stiffness to Weight: Axial, points		8.1

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

Strength to Weight: Axial, points		6.1
Strength to Weight: Axial, points		12

Strength to Weight: Bending, points		8.5
Strength to Weight: Bending, points		13

Thermal Shock Resistance, points		7.7
Thermal Shock Resistance, points		13

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.0050

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.2

Copper (Cu), %		88.5 to 89.4
Copper (Cu), %		64 to 67

Iron (Fe), %		0
Iron (Fe), %		0 to 1.5

Lead (Pb), %		0
Lead (Pb), %		1.0 to 2.5

Nickel (Ni), %		0
Nickel (Ni), %		24 to 27

Phosphorus (P), %		5.8 to 6.2
Phosphorus (P), %		0 to 0.050

Silicon (Si), %		0
Silicon (Si), %		0 to 0.15

Silver (Ag), %		4.8 to 5.2
Silver (Ag), %		0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.080

Tin (Sn), %		0
Tin (Sn), %		4.0 to 5.5

Zinc (Zn), %		0
Zinc (Zn), %		1.0 to 4.0

Residuals, %		0
Residuals, %		0 to 0.4