C99300 Copper vs. C55281 Copper

Both C99300 copper and C55281 copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 72% of their average alloy composition in common. 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 C99300 copper and the bottom bar is C55281 copper.

UNS C99300 Nickel-Aluminum Copper UNS C55281 (BCuP-3) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.33
Poisson's Ratio		0.34

Shear Modulus, GPa		46
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		660
Tensile Strength: Ultimate (UTS), MPa		190

Thermal Properties

Latent Heat of Fusion, J/g		240
Latent Heat of Fusion, J/g		190

Maximum Temperature: Mechanical, °C		250
Maximum Temperature: Mechanical, °C		200

Melting Completion (Liquidus), °C		1080
Melting Completion (Liquidus), °C		810

Melting Onset (Solidus), °C		1070
Melting Onset (Solidus), °C		640

Specific Heat Capacity, J/kg-K		450
Specific Heat Capacity, J/kg-K		400

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

Density, g/cm³		8.2
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		4.5
Embodied Carbon, kg CO₂/kg material		7.0

Embodied Energy, MJ/kg		70
Embodied Energy, MJ/kg		110

Common Calculations

Stiffness to Weight: Axial, points		8.3
Stiffness to Weight: Axial, points		6.9

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		22
Strength to Weight: Axial, points		6.1

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		8.5

Thermal Shock Resistance, points		22
Thermal Shock Resistance, points		7.7

Alloy Composition

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Aluminum (Al), %		10.7 to 11.5
Aluminum (Al), %		0

Cobalt (Co), %		1.0 to 2.0
Cobalt (Co), %		0

Copper (Cu), %		68.6 to 74.4
Copper (Cu), %		88.5 to 89.4

Iron (Fe), %		0.4 to 1.0
Iron (Fe), %		0

Lead (Pb), %		0 to 0.020
Lead (Pb), %		0

Nickel (Ni), %		13.5 to 16.5
Nickel (Ni), %		0

Phosphorus (P), %		0
Phosphorus (P), %		5.8 to 6.2

Silicon (Si), %		0 to 0.020
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		4.8 to 5.2

Tin (Sn), %		0 to 0.050
Tin (Sn), %		0

Residuals, %		0 to 0.3
Residuals, %		0 to 0.15