C55181 Copper vs. C95700 Bronze

Both C55181 copper and C95700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C55181 copper and the bottom bar is C95700 bronze.

UNS C55181 (BCuP-2) Filler Metal UNS C95700 Manganese-Aluminum Bronze

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		130

Poisson's Ratio		0.34
Poisson's Ratio		0.34

Shear Modulus, GPa		40
Shear Modulus, GPa		47

Tensile Strength: Ultimate (UTS), MPa		200
Tensile Strength: Ultimate (UTS), MPa		680

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		230

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		220

Melting Completion (Liquidus), °C		790
Melting Completion (Liquidus), °C		990

Melting Onset (Solidus), °C		710
Melting Onset (Solidus), °C		950

Specific Heat Capacity, J/kg-K		410
Specific Heat Capacity, J/kg-K		440

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

Otherwise Unclassified Properties

Base Metal Price, % relative		28
Base Metal Price, % relative		26

Density, g/cm³		8.5
Density, g/cm³		8.2

Embodied Carbon, kg CO₂/kg material		2.4
Embodied Carbon, kg CO₂/kg material		3.3

Embodied Energy, MJ/kg		38
Embodied Energy, MJ/kg		54

Embodied Water, L/kg		290
Embodied Water, L/kg		360

Common Calculations

Stiffness to Weight: Axial, points		7.0
Stiffness to Weight: Axial, points		8.5

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		20

Strength to Weight: Axial, points		6.5
Strength to Weight: Axial, points		23

Strength to Weight: Bending, points		8.9
Strength to Weight: Bending, points		21

Thermal Shock Resistance, points		8.2
Thermal Shock Resistance, points		21

Alloy Composition

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Aluminum (Al), %		0
Aluminum (Al), %		7.0 to 8.5

Copper (Cu), %		92.4 to 93
Copper (Cu), %		71 to 78.5

Iron (Fe), %		0
Iron (Fe), %		2.0 to 4.0

Lead (Pb), %		0
Lead (Pb), %		0 to 0.030

Manganese (Mn), %		0
Manganese (Mn), %		11 to 14

Nickel (Ni), %		0
Nickel (Ni), %		1.5 to 3.0

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

Silicon (Si), %		0
Silicon (Si), %		0 to 0.1

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