AWS BVAg-8b vs. AWS BNi-3

AWS BVAg-8b belongs to the otherwise unclassified metals classification, while AWS BNi-3 belongs to the nickel alloys. There are 16 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 AWS BVAg-8b and the bottom bar is AWS BNi-3.

AWS BVAg-8b (P07728) Vacuum Service Filler Metal AWS BNi-3 (N99630) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		84
Elastic (Young's, Tensile) Modulus, GPa		170

Poisson's Ratio		0.36
Poisson's Ratio		0.31

Shear Modulus, GPa		31
Shear Modulus, GPa		66

Tensile Strength: Ultimate (UTS), MPa		170
Tensile Strength: Ultimate (UTS), MPa		430

Thermal Properties

Brazing Temperature, °C		800 to 900
Brazing Temperature, °C		1010 to 1180

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		350

Melting Completion (Liquidus), °C		800
Melting Completion (Liquidus), °C		1040

Melting Onset (Solidus), °C		780
Melting Onset (Solidus), °C		980

Specific Heat Capacity, J/kg-K		280
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		10

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		8.3

Common Calculations

Stiffness to Weight: Axial, points		4.7
Stiffness to Weight: Axial, points		12

Stiffness to Weight: Bending, points		15
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		4.7
Strength to Weight: Axial, points		14

Strength to Weight: Bending, points		6.8
Strength to Weight: Bending, points		15

Thermal Shock Resistance, points		7.6
Thermal Shock Resistance, points		17

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.050

Boron (B), %		0
Boron (B), %		2.8 to 3.5

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

Carbon (C), %		0 to 0.0050
Carbon (C), %		0 to 0.060

Cobalt (Co), %		0
Cobalt (Co), %		0 to 0.1

Copper (Cu), %		26.8 to 29.2
Copper (Cu), %		0

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

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

Nickel (Ni), %		0.3 to 0.7
Nickel (Ni), %		90.1 to 93.3

Phosphorus (P), %		0 to 0.0020
Phosphorus (P), %		0 to 0.020

Selenium (Se), %		0
Selenium (Se), %		0 to 0.0050

Silicon (Si), %		0
Silicon (Si), %		4.0 to 5.0

Silver (Ag), %		70.5 to 72.5
Silver (Ag), %		0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.020

Titanium (Ti), %		0
Titanium (Ti), %		0 to 0.050

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

Zirconium (Zr), %		0
Zirconium (Zr), %		0 to 0.050

Residuals, %		0
Residuals, %		0 to 0.5