R30012 Cobalt vs. AWS BNi-9

R30012 cobalt belongs to the cobalt alloys classification, while AWS BNi-9 belongs to the nickel alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is R30012 cobalt and the bottom bar is AWS BNi-9.

UNS R30012 Co-Cr-W Alloy AWS BNi-9 (N99612) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.28
Poisson's Ratio		0.3

Shear Modulus, GPa		86
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		830
Tensile Strength: Ultimate (UTS), MPa		580

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		300

Melting Completion (Liquidus), °C		1470
Melting Completion (Liquidus), °C		1060

Melting Onset (Solidus), °C		1280
Melting Onset (Solidus), °C		1060

Specific Heat Capacity, J/kg-K		440
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		8.8
Density, g/cm³		8.4

Embodied Carbon, kg CO₂/kg material		8.3
Embodied Carbon, kg CO₂/kg material		9.3

Embodied Energy, MJ/kg		120
Embodied Energy, MJ/kg		130

Embodied Water, L/kg		480
Embodied Water, L/kg		260

Common Calculations

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

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		26
Strength to Weight: Axial, points		19

Strength to Weight: Bending, points		22
Strength to Weight: Bending, points		18

Thermal Shock Resistance, points		23
Thermal Shock Resistance, points		19

Alloy Composition

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

Boron (B), %		0
Boron (B), %		3.3 to 4.0

Carbon (C), %		1.4 to 2.0
Carbon (C), %		0 to 0.060

Chromium (Cr), %		27 to 32
Chromium (Cr), %		13.5 to 16.5

Cobalt (Co), %		47.5 to 64.1
Cobalt (Co), %		0 to 0.1

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

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

Nickel (Ni), %		0 to 3.0
Nickel (Ni), %		77.1 to 83.3

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

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

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

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

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

Tungsten (W), %		7.5 to 9.5
Tungsten (W), %		0

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

Residuals, %		0
Residuals, %		0 to 0.5