R30006 Cobalt vs. Grade 360 Molybdenum

R30006 cobalt belongs to the cobalt alloys classification, while grade 360 molybdenum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is grade 360 molybdenum.

UNS R30006 Co-Cr-W Alloy Grade 360 Molybdenum

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		1.0
Elongation at Break, %		6.3 to 17

Poisson's Ratio		0.28
Poisson's Ratio		0.31

Shear Modulus, GPa		85
Shear Modulus, GPa		120

Tensile Strength: Ultimate (UTS), MPa		900
Tensile Strength: Ultimate (UTS), MPa		430 to 620

Tensile Strength: Yield (Proof), MPa		540
Tensile Strength: Yield (Proof), MPa		270 to 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		11
Thermal Expansion, µm/m-K		7.0

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		10

Embodied Carbon, kg CO₂/kg material		7.8
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		7.8
Resilience: Ultimate (Unit Rupture Work), MJ/m³		37 to 64

Resilience: Unit (Modulus of Resilience), kJ/m³		670
Resilience: Unit (Modulus of Resilience), kJ/m³		120 to 450

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

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		29
Strength to Weight: Axial, points		12 to 17

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		12 to 16

Thermal Shock Resistance, points		26
Thermal Shock Resistance, points		14 to 21

Alloy Composition

Carbon (C), %		0.9 to 1.4
Carbon (C), %		0 to 0.030

Chromium (Cr), %		27 to 32
Chromium (Cr), %		0

Cobalt (Co), %		48.6 to 68.1
Cobalt (Co), %		0

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

Molybdenum (Mo), %		0 to 1.0
Molybdenum (Mo), %		99.9 to 100

Nickel (Ni), %		0 to 3.0
Nickel (Ni), %		0 to 0.0020

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

Oxygen (O), %		0
Oxygen (O), %		0 to 0.0015

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

Tungsten (W), %		4.0 to 6.0
Tungsten (W), %		0