C77300 Nickel Silver vs. C55283 Copper

Both C77300 nickel silver and C55283 copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 48% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C77300 nickel silver and the bottom bar is C55283 copper.

UNS C77300 (RBCuZn-D) Filler Metal UNS C55283 (BCuP-4) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		100

Poisson's Ratio		0.3
Poisson's Ratio		0.34

Shear Modulus, GPa		42
Shear Modulus, GPa		39

Tensile Strength: Ultimate (UTS), MPa		540
Tensile Strength: Ultimate (UTS), MPa		190

Thermal Properties

Brazing Temperature, °C		940 to 980
Brazing Temperature, °C		690 to 790

Latent Heat of Fusion, J/g		180
Latent Heat of Fusion, J/g		190

Maximum Temperature: Mechanical, °C		130
Maximum Temperature: Mechanical, °C		200

Melting Completion (Liquidus), °C		940
Melting Completion (Liquidus), °C		720

Melting Onset (Solidus), °C		920
Melting Onset (Solidus), °C		640

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

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

Density, g/cm³		7.9
Density, g/cm³		8.6

Embodied Carbon, kg CO₂/kg material		3.5
Embodied Carbon, kg CO₂/kg material		7.9

Embodied Energy, MJ/kg		56
Embodied Energy, MJ/kg		120

Common Calculations

Stiffness to Weight: Axial, points		7.7
Stiffness to Weight: Axial, points		6.8

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		19
Strength to Weight: Axial, points		6.1

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		8.5

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		8.0

Alloy Composition

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Aluminum (Al), %		0 to 0.010
Aluminum (Al), %		0

Copper (Cu), %		46 to 50
Copper (Cu), %		86.2 to 87.2

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

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

Phosphorus (P), %		0 to 0.25
Phosphorus (P), %		7.0 to 7.5

Silicon (Si), %		0.040 to 0.25
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		5.8 to 6.2

Zinc (Zn), %		37.9 to 45
Zinc (Zn), %		0

Residuals, %		0 to 0.5
Residuals, %		0 to 0.15