AWS BVAg-29 vs. C72700 Copper-nickel

AWS BVAg-29 belongs to the otherwise unclassified metals classification, while C72700 copper-nickel belongs to the copper alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-29 and the bottom bar is C72700 copper-nickel.

AWS BVAg-29 (P07627) Vacuum Service Filler Metal UNS C72700 Tin-Bearing Copper-Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		73
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.37
Poisson's Ratio		0.34

Shear Modulus, GPa		27
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		460 to 1070

Thermal Properties

Latent Heat of Fusion, J/g		120
Latent Heat of Fusion, J/g		210

Melting Completion (Liquidus), °C		710
Melting Completion (Liquidus), °C		1100

Melting Onset (Solidus), °C		620
Melting Onset (Solidus), °C		930

Specific Heat Capacity, J/kg-K		270
Specific Heat Capacity, J/kg-K		380

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Density, g/cm³		9.7
Density, g/cm³		8.8

Common Calculations

Stiffness to Weight: Axial, points		4.2
Stiffness to Weight: Axial, points		7.4

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		5.2
Strength to Weight: Axial, points		14 to 34

Strength to Weight: Bending, points		7.3
Strength to Weight: Bending, points		15 to 26

Thermal Shock Resistance, points		8.8
Thermal Shock Resistance, points		16 to 38

Alloy Composition

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

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

Copper (Cu), %		22.5 to 25.5
Copper (Cu), %		82.1 to 86

Indium (In), %		14 to 15
Indium (In), %		0

Iron (Fe), %		0
Iron (Fe), %		0 to 0.5

Lead (Pb), %		0 to 0.0020
Lead (Pb), %		0 to 0.020

Magnesium (Mg), %		0
Magnesium (Mg), %		0 to 0.15

Manganese (Mn), %		0
Manganese (Mn), %		0.050 to 0.3

Nickel (Ni), %		0
Nickel (Ni), %		8.5 to 9.5

Niobium (Nb), %		0
Niobium (Nb), %		0 to 0.1

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

Silver (Ag), %		60.5 to 62.5
Silver (Ag), %		0

Tin (Sn), %		0
Tin (Sn), %		5.5 to 6.5

Zinc (Zn), %		0 to 0.0010
Zinc (Zn), %		0 to 0.5

Residuals, %		0
Residuals, %		0 to 0.3