C66100 Bronze vs. C70250 Copper

Both C66100 bronze and C70250 copper are copper alloys. They have a very high 96% of their average alloy composition in common. There are 22 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 C66100 bronze and the bottom bar is C70250 copper.

UNS C66100 Leaded Silicon Bronze UNS C70250 (CW112C) Nickel-Silicon Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.34
Poisson's Ratio		0.34

Shear Modulus, GPa		43
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		410 to 790
Tensile Strength: Ultimate (UTS), MPa		520 to 740

Thermal Properties

Latent Heat of Fusion, J/g		260
Latent Heat of Fusion, J/g		220

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		210

Melting Completion (Liquidus), °C		1050
Melting Completion (Liquidus), °C		1100

Melting Onset (Solidus), °C		1000
Melting Onset (Solidus), °C		1080

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		390

Thermal Conductivity, W/m-K		34
Thermal Conductivity, W/m-K		170

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

Otherwise Unclassified Properties

Base Metal Price, % relative		29
Base Metal Price, % relative		31

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

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		2.9

Embodied Energy, MJ/kg		42
Embodied Energy, MJ/kg		45

Embodied Water, L/kg		300
Embodied Water, L/kg		310

Common Calculations

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

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

Strength to Weight: Axial, points		13 to 25
Strength to Weight: Axial, points		16 to 23

Strength to Weight: Bending, points		14 to 22
Strength to Weight: Bending, points		16 to 21

Thermal Diffusivity, mm²/s		9.7
Thermal Diffusivity, mm²/s		49

Thermal Shock Resistance, points		15 to 29
Thermal Shock Resistance, points		18 to 26

Alloy Composition

Copper (Cu), %		92 to 97
Copper (Cu), %		92.7 to 97.5

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

Lead (Pb), %		0.2 to 0.8
Lead (Pb), %		0 to 0.050

Magnesium (Mg), %		0
Magnesium (Mg), %		0.050 to 0.3

Manganese (Mn), %		0 to 1.5
Manganese (Mn), %		0 to 0.1

Nickel (Ni), %		0
Nickel (Ni), %		2.2 to 4.2

Silicon (Si), %		2.8 to 3.5
Silicon (Si), %		0.25 to 1.2

Zinc (Zn), %		0 to 1.5
Zinc (Zn), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.5