AWS BAg-18 vs. C77300 Nickel Silver

AWS BAg-18 belongs to the otherwise unclassified metals classification, while C77300 nickel silver belongs to the copper alloys. 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 AWS BAg-18 and the bottom bar is C77300 nickel silver.

AWS BAg-18 (P07600) Filler Metal UNS C77300 (RBCuZn-D) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.36
Poisson's Ratio		0.3

Shear Modulus, GPa		30
Shear Modulus, GPa		42

Tensile Strength: Ultimate (UTS), MPa		170
Tensile Strength: Ultimate (UTS), MPa		540

Thermal Properties

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

Latent Heat of Fusion, J/g		130
Latent Heat of Fusion, J/g		180

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

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

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

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

Otherwise Unclassified Properties

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

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

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

Common Calculations

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

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

Strength to Weight: Axial, points		4.9
Strength to Weight: Axial, points		19

Strength to Weight: Bending, points		7.0
Strength to Weight: Bending, points		19

Thermal Shock Resistance, points		7.7
Thermal Shock Resistance, points		17

Alloy Composition

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

Copper (Cu), %		28.4 to 31.5
Copper (Cu), %		46 to 50

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

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

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

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

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

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

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

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