C55181 Copper vs. AWS BNi-4

C55181 copper belongs to the copper alloys classification, while AWS BNi-4 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C55181 copper and the bottom bar is AWS BNi-4.

UNS C55181 (BCuP-2) Filler Metal AWS BNi-4 (N99640) 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		0.31

Shear Modulus, GPa		40
Shear Modulus, GPa		67

Tensile Strength: Ultimate (UTS), MPa		200
Tensile Strength: Ultimate (UTS), MPa		430

Thermal Properties

Brazing Temperature, °C		730 to 840
Brazing Temperature, °C		1010 to 1180

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		340

Melting Completion (Liquidus), °C		790
Melting Completion (Liquidus), °C		1070

Melting Onset (Solidus), °C		710
Melting Onset (Solidus), °C		980

Specific Heat Capacity, J/kg-K		410
Specific Heat Capacity, J/kg-K		470

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

Otherwise Unclassified Properties

Base Metal Price, % relative		28
Base Metal Price, % relative		60

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

Embodied Carbon, kg CO₂/kg material		2.4
Embodied Carbon, kg CO₂/kg material		10

Embodied Energy, MJ/kg		38
Embodied Energy, MJ/kg		140

Embodied Water, L/kg		290
Embodied Water, L/kg		220

Common Calculations

Stiffness to Weight: Axial, points		7.0
Stiffness to Weight: Axial, points		12

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		6.5
Strength to Weight: Axial, points		14

Strength to Weight: Bending, points		8.9
Strength to Weight: Bending, points		15

Thermal Shock Resistance, points		8.2
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

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

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

Copper (Cu), %		92.4 to 93
Copper (Cu), %		0

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

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

Phosphorus (P), %		7.0 to 7.5
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

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

Residuals, %		0
Residuals, %		0 to 0.5