C55281 Copper vs. AWS BNi-2

C55281 copper belongs to the copper alloys classification, while AWS BNi-2 belongs to the nickel alloys. There are 18 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C55281 copper and the bottom bar is AWS BNi-2.

UNS C55281 (BCuP-3) Filler Metal AWS BNi-2 (N99620) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		180

Poisson's Ratio		0.34
Poisson's Ratio		0.3

Shear Modulus, GPa		40
Shear Modulus, GPa		68

Tensile Strength: Ultimate (UTS), MPa		190
Tensile Strength: Ultimate (UTS), MPa		440

Thermal Properties

Brazing Temperature, °C		720 to 820
Brazing Temperature, °C		1010 to 1180

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		360

Melting Completion (Liquidus), °C		810
Melting Completion (Liquidus), °C		1000

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		970

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		490

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		11

Otherwise Unclassified Properties

Density, g/cm³		8.7
Density, g/cm³		8.2

Embodied Carbon, kg CO₂/kg material		7.0
Embodied Carbon, kg CO₂/kg material		9.3

Embodied Energy, MJ/kg		110
Embodied Energy, MJ/kg		130

Common Calculations

Stiffness to Weight: Axial, points		6.9
Stiffness to Weight: Axial, points		12

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		6.1
Strength to Weight: Axial, points		15

Strength to Weight: Bending, points		8.5
Strength to Weight: Bending, points		16

Thermal Shock Resistance, points		7.7
Thermal Shock Resistance, points		16

Alloy Composition

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

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

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

Chromium (Cr), %		0
Chromium (Cr), %		6.0 to 8.0

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

Copper (Cu), %		88.5 to 89.4
Copper (Cu), %		0

Iron (Fe), %		0
Iron (Fe), %		2.5 to 3.5

Nickel (Ni), %		0
Nickel (Ni), %		79.1 to 84.8

Phosphorus (P), %		5.8 to 6.2
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), %		4.8 to 5.2
Silver (Ag), %		0

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

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

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

Residuals, %		0
Residuals, %		0 to 0.5