C74000 Nickel Silver vs. C87300 Bronze

Both C74000 nickel silver and C87300 bronze are copper alloys. They have 72% 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 C74000 nickel silver and the bottom bar is C87300 bronze.

UNS C74000 Nickel Silver UNS C87300 Silicon Bronze

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.32
Poisson's Ratio		0.34

Shear Modulus, GPa		44
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		380 to 590
Tensile Strength: Ultimate (UTS), MPa		350

Thermal Properties

Latent Heat of Fusion, J/g		200
Latent Heat of Fusion, J/g		280

Maximum Temperature: Mechanical, °C		180
Maximum Temperature: Mechanical, °C		200

Melting Completion (Liquidus), °C		990
Melting Completion (Liquidus), °C		970

Melting Onset (Solidus), °C		950
Melting Onset (Solidus), °C		820

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		410

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		40
Electrical Conductivity: Equal Volume, % IACS		6.1

Electrical Conductivity: Equal Weight (Specific), % IACS		42
Electrical Conductivity: Equal Weight (Specific), % IACS		6.4

Otherwise Unclassified Properties

Base Metal Price, % relative		30
Base Metal Price, % relative		29

Density, g/cm³		8.5
Density, g/cm³		8.6

Embodied Carbon, kg CO₂/kg material		3.4
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		54
Embodied Energy, MJ/kg		42

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

Common Calculations

Stiffness to Weight: Axial, points		7.7
Stiffness to Weight: Axial, points		7.5

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

Strength to Weight: Axial, points		13 to 19
Strength to Weight: Axial, points		11

Strength to Weight: Bending, points		14 to 18
Strength to Weight: Bending, points		13

Thermal Shock Resistance, points		13 to 19
Thermal Shock Resistance, points		13

Alloy Composition

Copper (Cu), %		69 to 73.5
Copper (Cu), %		94 to 95.7

Iron (Fe), %		0 to 0.25
Iron (Fe), %		0 to 0.2

Lead (Pb), %		0 to 0.1
Lead (Pb), %		0 to 0.2

Manganese (Mn), %		0 to 0.5
Manganese (Mn), %		0.8 to 1.5

Nickel (Ni), %		9.0 to 11
Nickel (Ni), %		0

Silicon (Si), %		0
Silicon (Si), %		3.5 to 5.0

Zinc (Zn), %		14.2 to 22
Zinc (Zn), %		0 to 0.25

Residuals, %		0
Residuals, %		0 to 0.5