R30016 Cobalt vs. Grade 361 Molybdenum

R30016 cobalt belongs to the cobalt alloys classification, while grade 361 molybdenum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is grade 361 molybdenum.

UNS R30016 Co-Cr-W Alloy Grade 361 Molybdenum

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		220
Elastic (Young's, Tensile) Modulus, GPa		310

Elongation at Break, %		8.4
Elongation at Break, %		6.3

Poisson's Ratio		0.28
Poisson's Ratio		0.31

Shear Modulus, GPa		85
Shear Modulus, GPa		120

Tensile Strength: Ultimate (UTS), MPa		1010
Tensile Strength: Ultimate (UTS), MPa		620

Tensile Strength: Yield (Proof), MPa		580
Tensile Strength: Yield (Proof), MPa		530

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		370

Specific Heat Capacity, J/kg-K		450
Specific Heat Capacity, J/kg-K		250

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		7.0

Otherwise Unclassified Properties

Density, g/cm³		8.5
Density, g/cm³		10

Embodied Carbon, kg CO₂/kg material		7.7
Embodied Carbon, kg CO₂/kg material		28

Embodied Energy, MJ/kg		110
Embodied Energy, MJ/kg		330

Embodied Water, L/kg		500
Embodied Water, L/kg		360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		72
Resilience: Ultimate (Unit Rupture Work), MJ/m³		37

Resilience: Unit (Modulus of Resilience), kJ/m³		770
Resilience: Unit (Modulus of Resilience), kJ/m³		450

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

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

Strength to Weight: Axial, points		33
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		26
Strength to Weight: Bending, points		16

Thermal Shock Resistance, points		24
Thermal Shock Resistance, points		21

Alloy Composition

Carbon (C), %		0.9 to 1.4
Carbon (C), %		0 to 0.010

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

Cobalt (Co), %		49.6 to 66.9
Cobalt (Co), %		0

Iron (Fe), %		0 to 3.0
Iron (Fe), %		0 to 0.010

Manganese (Mn), %		0.5 to 2.0
Manganese (Mn), %		0

Molybdenum (Mo), %		0 to 1.5
Molybdenum (Mo), %		99.9 to 100

Nickel (Ni), %		0 to 3.0
Nickel (Ni), %		0 to 0.0050

Nitrogen (N), %		0
Nitrogen (N), %		0 to 0.0020

Oxygen (O), %		0
Oxygen (O), %		0 to 0.0070

Silicon (Si), %		0.2 to 2.0
Silicon (Si), %		0 to 0.010

Tungsten (W), %		3.5 to 5.5
Tungsten (W), %		0