R30006 Cobalt vs. AWS BCo-1

Both R30006 cobalt and AWS BCo-1 are cobalt alloys. They have 76% of their average alloy composition in common. 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 R30006 cobalt and the bottom bar is AWS BCo-1.

UNS R30006 Co-Cr-W Alloy AWS BCo-1 (R39001) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		220
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.28
Poisson's Ratio		0.3

Shear Modulus, GPa		85
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		900
Tensile Strength: Ultimate (UTS), MPa		700

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		420

Melting Completion (Liquidus), °C		1400
Melting Completion (Liquidus), °C		1150

Melting Onset (Solidus), °C		1290
Melting Onset (Solidus), °C		1120

Specific Heat Capacity, J/kg-K		450
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		7.8
Embodied Carbon, kg CO₂/kg material		8.0

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

Embodied Water, L/kg		500
Embodied Water, L/kg		430

Common Calculations

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

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		29
Strength to Weight: Axial, points		24

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		22

Thermal Shock Resistance, points		26
Thermal Shock Resistance, points		21

Alloy Composition

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

Boron (B), %		0
Boron (B), %		0.7 to 0.9

Carbon (C), %		0.9 to 1.4
Carbon (C), %		0.35 to 0.45

Chromium (Cr), %		27 to 32
Chromium (Cr), %		18 to 20

Cobalt (Co), %		48.6 to 68.1
Cobalt (Co), %		46 to 54

Iron (Fe), %		0 to 3.0
Iron (Fe), %		0 to 1.0

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

Nickel (Ni), %		0 to 3.0
Nickel (Ni), %		16 to 18

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), %		7.5 to 8.5

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

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

Tungsten (W), %		4.0 to 6.0
Tungsten (W), %		3.5 to 4.5

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

Residuals, %		0
Residuals, %		0 to 0.5