C77300 Nickel Silver vs. AWS BVAg-18

C77300 nickel silver belongs to the copper alloys classification, while AWS BVAg-18 belongs to the otherwise unclassified metals. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C77300 nickel silver and the bottom bar is AWS BVAg-18.

UNS C77300 (RBCuZn-D) Filler Metal AWS BVAg-18 (P07607) Vacuum Service Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		82

Poisson's Ratio		0.3
Poisson's Ratio		0.36

Shear Modulus, GPa		42
Shear Modulus, GPa		30

Tensile Strength: Ultimate (UTS), MPa		540
Tensile Strength: Ultimate (UTS), MPa		180

Thermal Properties

Brazing Temperature, °C		940 to 980
Brazing Temperature, °C		720 to 840

Latent Heat of Fusion, J/g		180
Latent Heat of Fusion, J/g		140

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

Melting Onset (Solidus), °C		920
Melting Onset (Solidus), °C		600

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		280

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		19

Otherwise Unclassified Properties

Density, g/cm³		7.9
Density, g/cm³		9.7

Embodied Carbon, kg CO₂/kg material		3.5
Embodied Carbon, kg CO₂/kg material		59

Embodied Energy, MJ/kg		56
Embodied Energy, MJ/kg		930

Common Calculations

Stiffness to Weight: Axial, points		7.7
Stiffness to Weight: Axial, points		4.7

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		15

Strength to Weight: Axial, points		19
Strength to Weight: Axial, points		5.1

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		7.3

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		8.1

Alloy Composition

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

Cadmium (Cd), %		0
Cadmium (Cd), %		0 to 0.0010

Carbon (C), %		0
Carbon (C), %		0 to 0.0050

Copper (Cu), %		46 to 50
Copper (Cu), %		28.5 to 31.5

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0 to 0.0020

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

Phosphorus (P), %		0 to 0.25
Phosphorus (P), %		0 to 0.0020

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

Silver (Ag), %		0
Silver (Ag), %		59 to 61

Tin (Sn), %		0
Tin (Sn), %		9.5 to 10.5

Zinc (Zn), %		37.9 to 45
Zinc (Zn), %		0 to 0.0010

Residuals, %		0 to 0.5
Residuals, %		0