AWS BNi-11 vs. R30001 Cobalt

AWS BNi-11 belongs to the nickel alloys classification, while R30001 cobalt belongs to the cobalt alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. 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-11 and the bottom bar is R30001 cobalt.

AWS BNi-11 (N99624) Filler Metal UNS R30001 Co-Cr-W Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		220

Poisson's Ratio		0.3
Poisson's Ratio		0.28

Shear Modulus, GPa		74
Shear Modulus, GPa		86

Tensile Strength: Ultimate (UTS), MPa		600
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		1100
Melting Completion (Liquidus), °C		1530

Melting Onset (Solidus), °C		970
Melting Onset (Solidus), °C		1260

Specific Heat Capacity, J/kg-K		450
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		9.1
Density, g/cm³		9.0

Embodied Carbon, kg CO₂/kg material		11
Embodied Carbon, kg CO₂/kg material		8.9

Embodied Energy, MJ/kg		160
Embodied Energy, MJ/kg		130

Embodied Water, L/kg		230
Embodied Water, L/kg		460

Common Calculations

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

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

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		19

Strength to Weight: Bending, points		17
Strength to Weight: Bending, points		18

Thermal Shock Resistance, points		20
Thermal Shock Resistance, points		19

Alloy Composition

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

Boron (B), %		2.2 to 3.1
Boron (B), %		0

Carbon (C), %		0.3 to 0.5
Carbon (C), %		2.0 to 3.0

Chromium (Cr), %		9.0 to 11.8
Chromium (Cr), %		28 to 32

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

Iron (Fe), %		2.5 to 4.0
Iron (Fe), %		0 to 3.0

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

Nickel (Ni), %		62.9 to 71.2
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), %		3.4 to 4.3
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), %		11.5 to 12.8
Tungsten (W), %		11 to 13

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

Residuals, %		0 to 0.5
Residuals, %		0