AWS BNi-3 vs. AWS BVAg-8b

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

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.31
Poisson's Ratio		0.36

Shear Modulus, GPa		66
Shear Modulus, GPa		31

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

Thermal Properties

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

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

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

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

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

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

Otherwise Unclassified Properties

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

Common Calculations

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

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

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

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

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

Alloy Composition

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Residuals, %		0 to 0.5
Residuals, %		0