AWS BNi-4 vs. AWS BVAu-2

AWS BNi-4 belongs to the nickel alloys classification, while AWS BVAu-2 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-4 and the bottom bar is AWS BVAu-2.

AWS BNi-4 (N99640) Filler Metal AWS BVAu-2 (P00807) Vacuum Service Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		180
Elastic (Young's, Tensile) Modulus, GPa		100

Poisson's Ratio		0.31
Poisson's Ratio		0.4

Shear Modulus, GPa		67
Shear Modulus, GPa		36

Tensile Strength: Ultimate (UTS), MPa		430
Tensile Strength: Ultimate (UTS), MPa		150

Thermal Properties

Brazing Temperature, °C		1010 to 1180
Brazing Temperature, °C		890 to 1010

Latent Heat of Fusion, J/g		340
Latent Heat of Fusion, J/g		92

Melting Completion (Liquidus), °C		1070
Melting Completion (Liquidus), °C		890

Melting Onset (Solidus), °C		980
Melting Onset (Solidus), °C		890

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		180

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		15

Otherwise Unclassified Properties

Density, g/cm³		8.5
Density, g/cm³		17

Common Calculations

Stiffness to Weight: Axial, points		12
Stiffness to Weight: Axial, points		3.3

Stiffness to Weight: Bending, points		22
Stiffness to Weight: Bending, points		9.1

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		2.4

Strength to Weight: Bending, points		15
Strength to Weight: Bending, points		3.6

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		7.1

Alloy Composition

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

Boron (B), %		1.5 to 2.2
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), %		19.5 to 20.5

Gold (Au), %		0
Gold (Au), %		79.5 to 80.5

Iron (Fe), %		0 to 1.5
Iron (Fe), %		0

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

Nickel (Ni), %		91.4 to 95.5
Nickel (Ni), %		0

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

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

Silicon (Si), %		3.0 to 4.0
Silicon (Si), %		0

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