AWS BVAu-2 vs. AWS BNi-4

AWS BVAu-2 belongs to the otherwise unclassified metals classification, while AWS BNi-4 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 BVAu-2 and the bottom bar is AWS BNi-4.

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.4
Poisson's Ratio		0.31

Shear Modulus, GPa		36
Shear Modulus, GPa		67

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

Thermal Properties

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

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

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

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

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

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

Otherwise Unclassified Properties

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

Common Calculations

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

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

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

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

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

Alloy Composition

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

Boron (B), %		0
Boron (B), %		1.5 to 2.2

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), %		19.5 to 20.5
Copper (Cu), %		0

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

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

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

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

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), %		3.0 to 4.0

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