60Cr-40Ni Alloy vs. R30021 Cobalt

60Cr-40Ni alloy belongs to the otherwise unclassified metals classification, while R30021 cobalt belongs to the cobalt alloys. They have a modest 31% 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 (12, in this case) are not shown.

For each property being compared, the top bar is 60Cr-40Ni alloy and the bottom bar is R30021 cobalt.

60Cr-40Ni (R20600) Casting Alloy UNS R30021 Co-Cr-W Alloy

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.25
Poisson's Ratio		0.29

Shear Modulus, GPa		87
Shear Modulus, GPa		86

Tensile Strength: Ultimate (UTS), MPa		870
Tensile Strength: Ultimate (UTS), MPa		700

Tensile Strength: Yield (Proof), MPa		660
Tensile Strength: Yield (Proof), MPa		500

Thermal Properties

Latent Heat of Fusion, J/g		370
Latent Heat of Fusion, J/g		330

Specific Heat Capacity, J/kg-K		490
Specific Heat Capacity, J/kg-K		450

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		11

Otherwise Unclassified Properties

Density, g/cm³		7.8
Density, g/cm³		8.4

Embodied Carbon, kg CO₂/kg material		7.4
Embodied Carbon, kg CO₂/kg material		8.0

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

Embodied Water, L/kg		380
Embodied Water, L/kg		520

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m³		1000
Resilience: Unit (Modulus of Resilience), kJ/m³		570

Stiffness to Weight: Axial, points		16
Stiffness to Weight: Axial, points		15

Stiffness to Weight: Bending, points		26
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		31
Strength to Weight: Axial, points		23

Strength to Weight: Bending, points		26
Strength to Weight: Bending, points		21

Thermal Shock Resistance, points		18
Thermal Shock Resistance, points		21

Alloy Composition

Aluminum (Al), %		0 to 0.25
Aluminum (Al), %		0

Carbon (C), %		0 to 0.1
Carbon (C), %		0.2 to 0.35

Chromium (Cr), %		58 to 62
Chromium (Cr), %		26 to 29

Cobalt (Co), %		0
Cobalt (Co), %		61.7 to 67.3

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

Manganese (Mn), %		0 to 0.3
Manganese (Mn), %		0

Molybdenum (Mo), %		0
Molybdenum (Mo), %		4.5 to 6.0

Nickel (Ni), %		34.5 to 42
Nickel (Ni), %		2.0 to 3.0

Nitrogen (N), %		0 to 0.3
Nitrogen (N), %		0

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

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0 to 1.5

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

Titanium (Ti), %		0 to 0.5
Titanium (Ti), %		0