AWS BNi-4 vs. AWS ENiCu-7

Both AWS BNi-4 and AWS ENiCu-7 are nickel alloys. They have 67% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-4 and the bottom bar is AWS ENiCu-7.

AWS BNi-4 (N99640) Filler Metal AWS ENiCu-7 (W84190) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		180
Elastic (Young's, Tensile) Modulus, GPa		160

Poisson's Ratio		0.31
Poisson's Ratio		0.32

Shear Modulus, GPa		67
Shear Modulus, GPa		62

Tensile Strength: Ultimate (UTS), MPa		430
Tensile Strength: Ultimate (UTS), MPa		550

Thermal Properties

Latent Heat of Fusion, J/g		340
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		1070
Melting Completion (Liquidus), °C		1270

Melting Onset (Solidus), °C		980
Melting Onset (Solidus), °C		1230

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		430

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Base Metal Price, % relative		60
Base Metal Price, % relative		50

Density, g/cm³		8.5
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		10
Embodied Carbon, kg CO₂/kg material		8.0

Embodied Energy, MJ/kg		140
Embodied Energy, MJ/kg		110

Embodied Water, L/kg		220
Embodied Water, L/kg		250

Common Calculations

Stiffness to Weight: Axial, points		12
Stiffness to Weight: Axial, points		10

Stiffness to Weight: Bending, points		22
Stiffness to Weight: Bending, points		21

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		17

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

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		18

Alloy Composition

Aluminum (Al), %		0 to 0.050
Aluminum (Al), %		0 to 0.75

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

Carbon (C), %		0 to 0.060
Carbon (C), %		0 to 0.1

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

Copper (Cu), %		0
Copper (Cu), %		20.6 to 38

Iron (Fe), %		0 to 1.5
Iron (Fe), %		0 to 2.5

Manganese (Mn), %		0
Manganese (Mn), %		0 to 4.0

Nickel (Ni), %		91.4 to 95.5
Nickel (Ni), %		62 to 69

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

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

Silicon (Si), %		3.0 to 4.0
Silicon (Si), %		0 to 1.5

Sulfur (S), %		0 to 0.020
Sulfur (S), %		0 to 0.015

Titanium (Ti), %		0 to 0.050
Titanium (Ti), %		0 to 1.0

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

Residuals, %		0
Residuals, %		0 to 0.5