C55281 Copper vs. C89320 Bronze

Both C55281 copper and C89320 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. 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 C55281 copper and the bottom bar is C89320 bronze.

UNS C55281 (BCuP-3) Filler Metal UNS C89320 Bismuth Bronze

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.34
Poisson's Ratio		0.34

Shear Modulus, GPa		40
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		190
Tensile Strength: Ultimate (UTS), MPa		270

Thermal Properties

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

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		180

Melting Completion (Liquidus), °C		810
Melting Completion (Liquidus), °C		1050

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		930

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		360

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

Otherwise Unclassified Properties

Density, g/cm³		8.7
Density, g/cm³		8.9

Embodied Carbon, kg CO₂/kg material		7.0
Embodied Carbon, kg CO₂/kg material		3.5

Embodied Energy, MJ/kg		110
Embodied Energy, MJ/kg		56

Common Calculations

Stiffness to Weight: Axial, points		6.9
Stiffness to Weight: Axial, points		6.8

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

Strength to Weight: Axial, points		6.1
Strength to Weight: Axial, points		8.5

Strength to Weight: Bending, points		8.5
Strength to Weight: Bending, points		10

Thermal Shock Resistance, points		7.7
Thermal Shock Resistance, points		10

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.0050

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.35

Bismuth (Bi), %		0
Bismuth (Bi), %		4.0 to 6.0

Copper (Cu), %		88.5 to 89.4
Copper (Cu), %		87 to 91

Iron (Fe), %		0
Iron (Fe), %		0 to 0.2

Lead (Pb), %		0
Lead (Pb), %		0 to 0.090

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

Phosphorus (P), %		5.8 to 6.2
Phosphorus (P), %		0 to 0.3

Silicon (Si), %		0
Silicon (Si), %		0 to 0.0050

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

Sulfur (S), %		0
Sulfur (S), %		0 to 0.080

Tin (Sn), %		0
Tin (Sn), %		5.0 to 7.0

Zinc (Zn), %		0
Zinc (Zn), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.5