C55284 Copper vs. G-CoCr28 Cobalt

C55284 copper belongs to the copper alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 18 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 C55284 copper and the bottom bar is G-CoCr28 cobalt.

UNS C55284 (BCuP-5) Filler Metal G-CoCr28 (2.4778) Cobalt-Chromium Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		210

Poisson's Ratio		0.34
Poisson's Ratio		0.28

Shear Modulus, GPa		38
Shear Modulus, GPa		83

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		560

Thermal Properties

Latent Heat of Fusion, J/g		180
Latent Heat of Fusion, J/g		320

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		1200

Melting Completion (Liquidus), °C		800
Melting Completion (Liquidus), °C		1330

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		1270

Specific Heat Capacity, J/kg-K		380
Specific Heat Capacity, J/kg-K		470

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		14

Otherwise Unclassified Properties

Density, g/cm³		8.9
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		16
Embodied Carbon, kg CO₂/kg material		6.2

Embodied Energy, MJ/kg		260
Embodied Energy, MJ/kg		84

Common Calculations

Stiffness to Weight: Axial, points		6.5
Stiffness to Weight: Axial, points		15

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		5.6
Strength to Weight: Axial, points		19

Strength to Weight: Bending, points		8.0
Strength to Weight: Bending, points		19

Thermal Shock Resistance, points		7.4
Thermal Shock Resistance, points		14

Alloy Composition

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Carbon (C), %		0
Carbon (C), %		0.050 to 0.25

Chromium (Cr), %		0
Chromium (Cr), %		27 to 30

Cobalt (Co), %		0
Cobalt (Co), %		48 to 52

Copper (Cu), %		79.2 to 80.7
Copper (Cu), %		0

Iron (Fe), %		0
Iron (Fe), %		9.7 to 24.5

Manganese (Mn), %		0
Manganese (Mn), %		0 to 1.5

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0 to 0.5

Nickel (Ni), %		0
Nickel (Ni), %		0 to 4.0

Niobium (Nb), %		0
Niobium (Nb), %		0 to 0.5

Phosphorus (P), %		4.8 to 5.2
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0
Silicon (Si), %		0.5 to 1.5

Silver (Ag), %		14.5 to 15.5
Silver (Ag), %		0

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

Residuals, %		0 to 0.15
Residuals, %		0