C52400 Bronze vs. C87600 Bronze

Both C52400 bronze and C87600 bronze are copper alloys. They have 90% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C52400 bronze and the bottom bar is C87600 bronze.

UNS C52400 Phosphor Bronze UNS C87600 Silicon 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		0.33

Shear Modulus, GPa		41
Shear Modulus, GPa		42

Tensile Strength: Ultimate (UTS), MPa		450 to 880
Tensile Strength: Ultimate (UTS), MPa		470

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		280

Maximum Temperature: Mechanical, °C		170
Maximum Temperature: Mechanical, °C		190

Melting Completion (Liquidus), °C		1000
Melting Completion (Liquidus), °C		970

Melting Onset (Solidus), °C		840
Melting Onset (Solidus), °C		860

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

Thermal Conductivity, W/m-K		50
Thermal Conductivity, W/m-K		28

Thermal Expansion, µm/m-K		18
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		11
Electrical Conductivity: Equal Volume, % IACS		6.0

Electrical Conductivity: Equal Weight (Specific), % IACS		11
Electrical Conductivity: Equal Weight (Specific), % IACS		6.4

Otherwise Unclassified Properties

Base Metal Price, % relative		35
Base Metal Price, % relative		29

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

Embodied Carbon, kg CO₂/kg material		3.6
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		58
Embodied Energy, MJ/kg		43

Embodied Water, L/kg		390
Embodied Water, L/kg		300

Common Calculations

Stiffness to Weight: Axial, points		6.9
Stiffness to Weight: Axial, points		7.4

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

Strength to Weight: Axial, points		14 to 28
Strength to Weight: Axial, points		16

Strength to Weight: Bending, points		15 to 23
Strength to Weight: Bending, points		16

Thermal Diffusivity, mm²/s		15
Thermal Diffusivity, mm²/s		8.1

Thermal Shock Resistance, points		17 to 32
Thermal Shock Resistance, points		17

Alloy Composition

Copper (Cu), %		87.8 to 91
Copper (Cu), %		88 to 92.5

Iron (Fe), %		0 to 0.1
Iron (Fe), %		0

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0 to 0.5

Phosphorus (P), %		0.030 to 0.35
Phosphorus (P), %		0

Silicon (Si), %		0
Silicon (Si), %		3.5 to 5.5

Tin (Sn), %		9.0 to 11
Tin (Sn), %		0

Zinc (Zn), %		0 to 0.2
Zinc (Zn), %		4.0 to 7.0

Residuals, %		0
Residuals, %		0 to 0.5