C66100 Bronze vs. C71640 Copper-nickel

Both C66100 bronze and C71640 copper-nickel are copper alloys. They have 66% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C66100 bronze and the bottom bar is C71640 copper-nickel.

UNS C66100 Leaded Silicon Bronze UNS C71640 Copper-Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		140

Poisson's Ratio		0.34
Poisson's Ratio		0.33

Shear Modulus, GPa		43
Shear Modulus, GPa		52

Tensile Strength: Ultimate (UTS), MPa		410 to 790
Tensile Strength: Ultimate (UTS), MPa		490 to 630

Tensile Strength: Yield (Proof), MPa		120 to 430
Tensile Strength: Yield (Proof), MPa		190 to 460

Thermal Properties

Latent Heat of Fusion, J/g		260
Latent Heat of Fusion, J/g		240

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		260

Melting Completion (Liquidus), °C		1050
Melting Completion (Liquidus), °C		1180

Melting Onset (Solidus), °C		1000
Melting Onset (Solidus), °C		1120

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		410

Thermal Conductivity, W/m-K		34
Thermal Conductivity, W/m-K		29

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		15

Otherwise Unclassified Properties

Base Metal Price, % relative		29
Base Metal Price, % relative		40

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

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		5.0

Embodied Energy, MJ/kg		42
Embodied Energy, MJ/kg		73

Embodied Water, L/kg		300
Embodied Water, L/kg		280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m³		60 to 790
Resilience: Unit (Modulus of Resilience), kJ/m³		130 to 750

Stiffness to Weight: Axial, points		7.4
Stiffness to Weight: Axial, points		8.7

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

Strength to Weight: Axial, points		13 to 25
Strength to Weight: Axial, points		15 to 20

Strength to Weight: Bending, points		14 to 22
Strength to Weight: Bending, points		16 to 18

Thermal Diffusivity, mm²/s		9.7
Thermal Diffusivity, mm²/s		8.2

Thermal Shock Resistance, points		15 to 29
Thermal Shock Resistance, points		16 to 21

Alloy Composition

Copper (Cu), %		92 to 97
Copper (Cu), %		61.7 to 67.8

Iron (Fe), %		0 to 0.25
Iron (Fe), %		1.7 to 2.3

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

Manganese (Mn), %		0 to 1.5
Manganese (Mn), %		1.5 to 2.5

Nickel (Ni), %		0
Nickel (Ni), %		29 to 32

Silicon (Si), %		2.8 to 3.5
Silicon (Si), %		0

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

Residuals, %		0
Residuals, %		0 to 0.5