C82700 Copper vs. C55281 Copper

Both C82700 copper and C55281 copper are copper alloys. They have 89% of their average alloy composition in common. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C82700 copper and the bottom bar is C55281 copper.

UNS C82700 Beryllium-Nickel 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		1200
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		300
Maximum Temperature: Mechanical, °C		200

Melting Completion (Liquidus), °C		950
Melting Completion (Liquidus), °C		810

Melting Onset (Solidus), °C		860
Melting Onset (Solidus), °C		640

Specific Heat Capacity, J/kg-K		380
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		8.7
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		12
Embodied Carbon, kg CO₂/kg material		7.0

Embodied Energy, MJ/kg		180
Embodied Energy, MJ/kg		110

Common Calculations

Stiffness to Weight: Axial, points		7.8
Stiffness to Weight: Axial, points		6.9

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		38
Strength to Weight: Axial, points		6.1

Strength to Weight: Bending, points		29
Strength to Weight: Bending, points		8.5

Thermal Shock Resistance, points		41
Thermal Shock Resistance, points		7.7

Alloy Composition

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Aluminum (Al), %		0 to 0.15
Aluminum (Al), %		0

Beryllium (Be), %		2.4 to 2.6
Beryllium (Be), %		0

Chromium (Cr), %		0 to 0.090
Chromium (Cr), %		0

Copper (Cu), %		94.6 to 96.7
Copper (Cu), %		88.5 to 89.4

Iron (Fe), %		0 to 0.25
Iron (Fe), %		0

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

Nickel (Ni), %		1.0 to 1.5
Nickel (Ni), %		0

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

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

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

Tin (Sn), %		0 to 0.1
Tin (Sn), %		0

Zinc (Zn), %		0 to 0.1
Zinc (Zn), %		0

Residuals, %		0 to 0.5
Residuals, %		0 to 0.15