C71500 Copper-nickel vs. AWS BNi-6

C71500 copper-nickel belongs to the copper alloys classification, while AWS BNi-6 belongs to the nickel alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is AWS BNi-6.

UNS C71500 (CW354H) Copper-Nickel AWS BNi-6 (N99700) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		140
Elastic (Young's, Tensile) Modulus, GPa		160

Poisson's Ratio		0.33
Poisson's Ratio		0.31

Shear Modulus, GPa		52
Shear Modulus, GPa		62

Tensile Strength: Ultimate (UTS), MPa		380 to 620
Tensile Strength: Ultimate (UTS), MPa		450

Thermal Properties

Latent Heat of Fusion, J/g		230
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		1240
Melting Completion (Liquidus), °C		880

Melting Onset (Solidus), °C		1170
Melting Onset (Solidus), °C		880

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		9.8

Otherwise Unclassified Properties

Base Metal Price, % relative		41
Base Metal Price, % relative		55

Density, g/cm³		8.9
Density, g/cm³		8.2

Embodied Carbon, kg CO₂/kg material		5.1
Embodied Carbon, kg CO₂/kg material		9.4

Embodied Energy, MJ/kg		74
Embodied Energy, MJ/kg		130

Embodied Water, L/kg		280
Embodied Water, L/kg		210

Common Calculations

Stiffness to Weight: Axial, points		8.6
Stiffness to Weight: Axial, points		11

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

Strength to Weight: Axial, points		12 to 19
Strength to Weight: Axial, points		15

Strength to Weight: Bending, points		13 to 18
Strength to Weight: Bending, points		16

Thermal Shock Resistance, points		12 to 20
Thermal Shock Resistance, points		20

Alloy Composition

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

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

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

Copper (Cu), %		63.5 to 70.6
Copper (Cu), %		0

Iron (Fe), %		0.4 to 1.0
Iron (Fe), %		0

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0

Nickel (Ni), %		29 to 33
Nickel (Ni), %		87.2 to 90

Phosphorus (P), %		0
Phosphorus (P), %		10 to 12

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

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

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

Zinc (Zn), %		0 to 1.0
Zinc (Zn), %		0

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

Residuals, %		0
Residuals, %		0 to 0.5