AWS BNi-5 vs. ASTM B780 Alloy

AWS BNi-5 belongs to the nickel alloys classification, while ASTM B780 alloy belongs to the otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-5 and the bottom bar is ASTM B780 alloy.

AWS BNi-5 (N99650) Filler Metal ASTM B780 Silver-Copper-Nickel Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		83

Poisson's Ratio		0.29
Poisson's Ratio		0.36

Shear Modulus, GPa		72
Shear Modulus, GPa		30

Tensile Strength: Ultimate (UTS), MPa		470
Tensile Strength: Ultimate (UTS), MPa		330 to 590

Thermal Properties

Latent Heat of Fusion, J/g		470
Latent Heat of Fusion, J/g		140

Specific Heat Capacity, J/kg-K		510
Specific Heat Capacity, J/kg-K		270

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		18

Otherwise Unclassified Properties

Density, g/cm³		7.7
Density, g/cm³		10

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		4.5

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		14

Strength to Weight: Axial, points		17
Strength to Weight: Axial, points		9.1 to 16

Strength to Weight: Bending, points		17
Strength to Weight: Bending, points		11 to 15

Thermal Shock Resistance, points		15
Thermal Shock Resistance, points		16 to 29

Alloy Composition

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

Boron (B), %		0 to 0.030
Boron (B), %		0

Cadmium (Cd), %		0
Cadmium (Cd), %		0 to 0.050

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

Chromium (Cr), %		18.5 to 19.5
Chromium (Cr), %		0

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

Copper (Cu), %		0
Copper (Cu), %		23.5 to 25.7

Iron (Fe), %		0
Iron (Fe), %		0 to 0.050

Lead (Pb), %		0
Lead (Pb), %		0 to 0.030

Nickel (Ni), %		69.1 to 71.8
Nickel (Ni), %		0.35 to 0.65

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

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

Silicon (Si), %		9.8 to 10.5
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		74 to 76

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 0.060

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

Residuals, %		0 to 0.5
Residuals, %		0