C55181 Copper vs. C94900 Bronze

Both C55181 copper and C94900 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 80% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C55181 copper and the bottom bar is C94900 bronze.

UNS C55181 (BCuP-2) Filler Metal UNS C94900 Leaded Nickel-Tin 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		41

Tensile Strength: Ultimate (UTS), MPa		200
Tensile Strength: Ultimate (UTS), MPa		300

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		170

Melting Completion (Liquidus), °C		790
Melting Completion (Liquidus), °C		980

Melting Onset (Solidus), °C		710
Melting Onset (Solidus), °C		910

Specific Heat Capacity, J/kg-K		410
Specific Heat Capacity, J/kg-K		370

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		18

Otherwise Unclassified Properties

Base Metal Price, % relative		28
Base Metal Price, % relative		32

Density, g/cm³		8.5
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		2.4
Embodied Carbon, kg CO₂/kg material		3.4

Embodied Energy, MJ/kg		38
Embodied Energy, MJ/kg		55

Embodied Water, L/kg		290
Embodied Water, L/kg		350

Common Calculations

Stiffness to Weight: Axial, points		7.0
Stiffness to Weight: Axial, points		6.9

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

Strength to Weight: Axial, points		6.5
Strength to Weight: Axial, points		9.4

Strength to Weight: Bending, points		8.9
Strength to Weight: Bending, points		11

Thermal Shock Resistance, points		8.2
Thermal Shock Resistance, points		11

Alloy Composition

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

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.25

Copper (Cu), %		92.4 to 93
Copper (Cu), %		79 to 81

Iron (Fe), %		0
Iron (Fe), %		0 to 0.3

Lead (Pb), %		0
Lead (Pb), %		4.0 to 6.0

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.1

Nickel (Ni), %		0
Nickel (Ni), %		4.0 to 6.0

Phosphorus (P), %		7.0 to 7.5
Phosphorus (P), %		0 to 0.050

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

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

Tin (Sn), %		0
Tin (Sn), %		4.0 to 6.0

Zinc (Zn), %		0
Zinc (Zn), %		4.0 to 6.0

Residuals, %		0
Residuals, %		0 to 0.8