EN 2.4964 Cobalt vs. SAE-AISI H22 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while SAE-AISI H22 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is SAE-AISI H22 steel.

EN 2.4964 (CoCr20W15Ni) Cobalt Alloy SAE-AISI H22 (T20822) Tungsten Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		86
Shear Modulus, GPa		77

Tensile Strength: Ultimate (UTS), MPa		960
Tensile Strength: Ultimate (UTS), MPa		700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		250

Melting Completion (Liquidus), °C		1630
Melting Completion (Liquidus), °C		1670

Melting Onset (Solidus), °C		1550
Melting Onset (Solidus), °C		1620

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		440

Thermal Conductivity, W/m-K		15
Thermal Conductivity, W/m-K		31

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

Otherwise Unclassified Properties

Density, g/cm³		9.6
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		9.8
Embodied Carbon, kg CO₂/kg material		4.9

Embodied Energy, MJ/kg		140
Embodied Energy, MJ/kg		73

Embodied Water, L/kg		450
Embodied Water, L/kg		72

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		21
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		28
Strength to Weight: Axial, points		22 to 61

Strength to Weight: Bending, points		23
Strength to Weight: Bending, points		20 to 39

Thermal Diffusivity, mm²/s		3.9
Thermal Diffusivity, mm²/s		8.2

Thermal Shock Resistance, points		25
Thermal Shock Resistance, points		22 to 60

Alloy Composition

Carbon (C), %		0.050 to 0.15
Carbon (C), %		0.3 to 0.4

Chromium (Cr), %		19 to 21
Chromium (Cr), %		1.8 to 3.8

Cobalt (Co), %		46.4 to 58
Cobalt (Co), %		0

Copper (Cu), %		0
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0 to 3.0
Iron (Fe), %		82.2 to 87.4

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		0.15 to 0.4

Nickel (Ni), %		9.0 to 11
Nickel (Ni), %		0 to 0.3

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0 to 0.4
Silicon (Si), %		0.15 to 0.4

Sulfur (S), %		0 to 0.015
Sulfur (S), %		0 to 0.030

Tungsten (W), %		14 to 16
Tungsten (W), %		10 to 11.8

Vanadium (V), %		0
Vanadium (V), %		0.25 to 0.5