AWS BNi-4 vs. R30001 Cobalt

AWS BNi-4 belongs to the nickel alloys classification, while R30001 cobalt belongs to the cobalt alloys. There are 18 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-4 and the bottom bar is R30001 cobalt.

AWS BNi-4 (N99640) Filler Metal UNS R30001 Co-Cr-W Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		180
Elastic (Young's, Tensile) Modulus, GPa		220

Poisson's Ratio		0.31
Poisson's Ratio		0.28

Shear Modulus, GPa		67
Shear Modulus, GPa		86

Tensile Strength: Ultimate (UTS), MPa		430
Tensile Strength: Ultimate (UTS), MPa		620

Thermal Properties

Latent Heat of Fusion, J/g		340
Latent Heat of Fusion, J/g		310

Melting Completion (Liquidus), °C		1070
Melting Completion (Liquidus), °C		1530

Melting Onset (Solidus), °C		980
Melting Onset (Solidus), °C		1260

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		11

Otherwise Unclassified Properties

Density, g/cm³		8.5
Density, g/cm³		9.0

Embodied Carbon, kg CO₂/kg material		10
Embodied Carbon, kg CO₂/kg material		8.9

Embodied Energy, MJ/kg		140
Embodied Energy, MJ/kg		130

Embodied Water, L/kg		220
Embodied Water, L/kg		460

Common Calculations

Stiffness to Weight: Axial, points		12
Stiffness to Weight: Axial, points		14

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

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		19

Strength to Weight: Bending, points		15
Strength to Weight: Bending, points		18

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		19

Alloy Composition

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

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

Carbon (C), %		0 to 0.060
Carbon (C), %		2.0 to 3.0

Chromium (Cr), %		0
Chromium (Cr), %		28 to 32

Cobalt (Co), %		0 to 0.1
Cobalt (Co), %		43 to 59

Iron (Fe), %		0 to 1.5
Iron (Fe), %		0 to 3.0

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0 to 1.0

Nickel (Ni), %		91.4 to 95.5
Nickel (Ni), %		0 to 3.0

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

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

Silicon (Si), %		3.0 to 4.0
Silicon (Si), %		0 to 2.0

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

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

Tungsten (W), %		0
Tungsten (W), %		11 to 13

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

Residuals, %		0 to 0.5
Residuals, %		0